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  • CTFs

CTFs

  • SECCON CTF

    Official URL
    Total events: 27
    Avg weight: 47.20

  • Insomni'hack

    Official URL
    Total events: 21
    Avg weight: 37.05

  • Hack The Box CTF

    Official URL
    Total events: 20
    Avg weight: 26.31

    Hack The Box CTF's

  • UCSB iCTF

    no logo

    Official URL
    Total events: 18
    Avg weight: 46.30

    The UCSB International Capture The Flag (also known as the iCTF) is a distributed, wide-area security exercise, whose goal is to test the security skills of the participants....

  • HITCON CTF

    Official URL
    Total events: 18
    Avg weight: 66.67

  • CTF Internacional MetaRed

    Official URL
    Total events: 18
    Avg weight: 18.32

    CTF Internacional MetaRed 2023

    - Academic
    - 7 stages Jeopardy CTF Championship
    - Awards ceremony / Ceremonia de premiación: to be schedulled.
    - The reg...

  • 0CTF

    Official URL
    Total events: 17
    Avg weight: 77.41

    Open for everyone. Hope all of you can enjoy it:)

  • Midnight Sun CTF

    Official URL
    Total events: 17
    Avg weight: 52.97

    Midnight Sun CTF is HackingForSoju's annual CTF event to promote competition around the world.

    On site finals in Stockholm, Sweden during the peak summer period in J...

  • Hardware CTF by Quarkslab

    Official URL
    Total events: 17
    Avg weight: 0.00

    Since 2017, we propose a hardware-oriented CTF with challenges renewed every year and presented at Hardwear.io NL & US,

  • RuCTF Finals

    Official URL
    Total events: 16
    Avg weight: 30.63

    RuCTF is annual open all-Russian intercollegiate competition and conference on information security.
    On-site finals of RuCTF (https://ctftime.org/ctf/6) in Yekaterinburg...

  • DEF CON CTF Qualifier

    Official URL
    Total events: 15
    Avg weight: 78.60

    Online qualifier for the Vegas finals.

    Binjitsu by ddtek (... — 2012)
    Legitimate Business Syndicate (2013 — 2017)<...

  • PlaidCTF

    Official URL
    Total events: 15
    Avg weight: 89.26

    Plaid CTF :: Hosted by Plaid Parliament of Pwning

  • HackIM

    Official URL
    Total events: 15
    Avg weight: 24.13

  • DEF CON CTF

    Official URL
    Total events: 14
    Avg weight: 77.01

    Vegas finals.

    Binjitsu by ddtek (... — 2012)
    Legitimate Business Syndicate (2013 — 2017)

  • Hack.lu CTF

    Official URL
    Total events: 14
    Avg weight: 80.39

  • CSAW CTF Qualification Round

    Official URL
    Total events: 14
    Avg weight: 34.18

    CSAW CTF is a entry-level CTF, designed for undergraduate students who are trying to break into security. Challenges are specifically designed to point students in directions...

  • CSAW CTF Final Round

    Official URL
    Total events: 14
    Avg weight: 28.66

    This one is harder. :)

  • VolgaCTF Qualifier

    Official URL
    Total events: 14
    Avg weight: 26.25

    VolgaCTF is an international inter-university cybersecurity competition organised by a group of IT enthusiasts based in Samara, Russia.

    The competition consists of 2 ...

  • Trend Micro CTF - Raimund Genes Cup

    Official URL
    Total events: 14
    Avg weight: 22.42

    Trend Micro CTF - Raimund Genes Cup is a capture the flag competition hosted by Trend Micro, a global leader in cybersecurity with a mission to make the world safe for exchan...

  • Google Capture The Flag

    Official URL
    Total events: 14
    Avg weight: 72.42

    Annual Capture The Flag hosted by the Google Security Team.

  • ISITDTU CTF

    Official URL
    Total events: 14
    Avg weight: 30.06

  • m0leCon CTF

    no logo

    Official URL
    Total events: 14
    Avg weight: 52.06

    m0leCon CTF is a jeopardy-style CTF that takes place during the m0leCon conference at the Politecnico di Torino. The 2024/2025 edition will feature an online teaser CTF on Se...

  • Codegate CTF Preliminary

    Official URL
    Total events: 13
    Avg weight: 47.54

  • RuCTF

    Official URL
    Total events: 13
    Avg weight: 70.81

    International online challenge in information security. Previously known as RuCTFE.

    Good choice to start playing A/D, because we're providing vulnbox in our cloud, s...

  • ASIS CTF Quals

    Official URL
    Total events: 13
    Avg weight: 59.37

    ASIS CTF Quals

  • ASIS CTF Finals

    Official URL
    Total events: 13
    Avg weight: 67.99

    ASIS CTF Finals

  • Securinets CTF

    Official URL
    Total events: 13
    Avg weight: 42.00

    CTF Securinets Quals is an on-line jeopardy style CTF organized by Tunisian cybersecurity enthusiasts.
    Top 15 are qualified to play finals onsite in INSAT during SECURID...

  • M*CTF

    Official URL
    Total events: 13
    Avg weight: 25.24

  • NorthSec CTF

    Official URL
    Total events: 12
    Avg weight: 30.38

    NorthSec is the world's biggest on-site CTF, opposes 75 teams of 8 people trying to obtain the most points by capturing flags during an intense 48 hour-long competition (Fri-...

  • Defcamp CTF Qualification

    Official URL
    Total events: 12
    Avg weight: 25.27

  • Dragon CTF

    Total events: 12
    Avg weight: 55.20

  • CTFZone

    Official URL
    Total events: 12
    Avg weight: 62.52

    Make CTF great again.

  • Just Hacking

    Official URL
    Total events: 12
    Avg weight: 32.90

  • AlpacaHack

    Official URL
    Total events: 12
    Avg weight: 0.00

    AlpacaHack is a new CTF platform for individual competitions. AlpacaHack continuously hosts individual CTFs, and after each CTF ends, the challenges are archived on the platf...

  • Dreamhack CTF

    Official URL
    Total events: 12
    Avg weight: 0.00

    Brought to you by Dreamhack Team, based on Theori, Korea.
    Dreamhack CTF is held twice a month - Div.1 at the beginning of the month, and Div.2 at the end of the month.

  • Codegate CTF Finals

    Official URL
    Total events: 11
    Avg weight: 59.17

  • BackdoorCTF

    Official URL
    Total events: 11
    Avg weight: 38.57

    BackdoorCTF is an online jeopardy style event.

    Discord invite for the competition is https://discord.gg/nYvQ4jYq.

  • VolgaCTF Final

    Official URL
    Total events: 11
    Avg weight: 37.36

    VolgaCTF is an international inter-university cybersecurity competition organised by a group of IT enthusiasts based in Samara, Russia.

    The competition consists of 2 ...

  • bi0sCTF

    Official URL
    Total events: 10
    Avg weight: 62.43

    bi0sCTF is brought to you by team bi0s of Amrita Vishwa Vidyapeetham, Amritapuri.

    Prizes:
    1st place - $1500
    2nd place - $1000
    3rd place - $500

    <...

  • FAUST CTF

    no logo

    Official URL
    Total events: 10
    Avg weight: 68.43

    FAUST CTF is an online attack-defense CTF organized by FAUST, the CTF team of Friedrich-Alexander University Erlangen-Nürnberg

  • RCTF

    Official URL
    Total events: 10
    Avg weight: 49.85

  • HITB CTF Amsterdam

    Official URL
    Total events: 9
    Avg weight: 29.17

    What: Jeopardy style CTF hacking competition
    When: April 12th & 13th 2018
    Where: On site at HITB2018AMS @ NH Krasnapolsky
    Who: Max of 24 teams with up to 3 pla...

  • GreHack CTF

    Official URL
    Total events: 9
    Avg weight: 24.25

    GreHack CTF is onsite jeopardy style CTF held each year at the occasion of GreHack Conference.

  • C3CTF

    Official URL
    Total events: 9
    Avg weight: 67.86

  • UIUCTF

    Official URL
    Total events: 9
    Avg weight: 40.46

    CTF hosted by the Special interest Group for Information
    Security (SIGPwny) at the University of Illinois Urbana-Champaign.

  • Pragyan CTF

    no logo

    Official URL
    Total events: 9
    Avg weight: 14.89

  • ångstromCTF

    Official URL
    Total events: 9
    Avg weight: 58.33

    Geared primarily towards high school students but with a very wide range of challenge difficulty.

  • hxp CTF

    Official URL
    Total events: 9
    Avg weight: 71.48

    A yearly(?) CTF organized by hxp.

    See CTF archive: https://ctf.hxp.io/

  • SunshineCTF

    Official URL
    Total events: 9
    Avg weight: 27.36

  • TAMUctf

    Official URL
    Total events: 9
    Avg weight: 42.76

    CTF organized by students from Texas A&M University

  • CyberSecurityRumble CTF

    Official URL
    Total events: 9
    Avg weight: 50.49

    The CSR will be back in 2021.

    Again we'll have fun tasks and awesome prices.

    Details will follow.

  • RITSEC CTF

    Official URL
    Total events: 9
    Avg weight: 29.85

    RITSEC CTF is a cybersecurity Capture The Flag competition that features categories such as PWN, Cryptography, Reversing, Forensics, Web, and Misc. We welcome beginners and m...

  • PlayCyber

    Official URL
    Total events: 9
    Avg weight: 0.00

    PlayCyber delivers epic Cyber Games and Esports for fans, sponsors and players.

    We are building a stronger and more diverse community of cybersecurity professionals ...

  • Haruulzangi CTF

    Official URL
    Total events: 9
    Avg weight: 23.75

    The Biggest CTF of Mongolia, The one which everyone waits for the game. Players include Mongolian high school pupils, security engineers, programmers, IT engineers, enthusias...

  • Nuit du Hack CTF Quals

    Official URL
    Total events: 8
    Avg weight: 41.19

  • ENOWARS

    Official URL
    Total events: 8
    Avg weight: 68.71

    Fun Attack/Defense Competitions

  • UConn CyberSEED

    no logo

    Official URL
    Total events: 8
    Avg weight: 5.00

  • Defcamp CTF Finals

    Official URL
    Total events: 8
    Avg weight: 20.40

  • EKOPARTY CTF

    Official URL
    Total events: 8
    Avg weight: 35.53

  • WhiteHat Grand Prix

    Official URL
    Total events: 8
    Avg weight: 18.48

    WhiteHat Grand Prix, a Capture The Flag competition, is held annually by WhiteHatVN.com, leading cyber security forum in Vietnam.

  • TJCTF

    Official URL
    Total events: 8
    Avg weight: 36.26

  • N1CTF

    Total events: 8
    Avg weight: 67.62

    N1CTF is a jeopardy style CTF held by team Nu1L.

  • Block CTF

    Official URL
    Total events: 8
    Avg weight: 40.12

    Annual CTF organized by Block. Puzzles are on the easier end of college level CTFs.

  • p4ctf

    Official URL
    Total events: 8
    Avg weight: 45.05

  • BSidesSF CTF

    no logo

    Official URL
    Total events: 8
    Avg weight: 27.24

    The BSidesSF CTF will be kicking off at 4:00pm PDT 04/25/2025 and will run until 4:00pm PDT 04/27/2025. You can register to play at https://ctf.bsidessf.net/register. We have...

  • Real World CTF

    Official URL
    Total events: 8
    Avg weight: 57.20

    The Real World CTF 2018, which is in jeopardy style, has an
    on-line qualification round followed by an on-site, hands-on
    final round in China where all challenges a...

  • Ugra CTF

    Official URL
    Total events: 8
    Avg weight: 31.84

    Ugra CTF is an open academic information security competition for beginners.

    This CTF is organized by [team Team] in a joint effort with Ugra Research Institute of In...

  • Hackfest CTF

    Official URL
    Total events: 8
    Avg weight: 25.00

    The Hackfest CTF is a (currently remote, usually on-site) event that offers multiple CTFs in one night, ranging various levels of difficulty.
    - 400+ players
    - Over...

  • h4ckc0n

    Official URL
    Total events: 7
    Avg weight: 19.28

    HackCon is a jeopardy style competition that includes challenges in the domain of Reverse Engineering, Web Exploitation, Clever Scripting, Automation and general "hacks".

    ...

  • AltayCTF

    Official URL
    Total events: 7
    Avg weight: 25.00

    CTF from the Altai region

  • HSCTF

    Official URL
    Total events: 7
    Avg weight: 36.26

    The first ever CTF run entirely by high schoolers!

    Infra sponsored by goo.gle/ctfsponsorship!

  • TU CTF

    Official URL
    Total events: 7
    Avg weight: 26.32

  • THCon CTF

    Official URL
    Total events: 7
    Avg weight: 25.33

    The Toulouse Hacking Convention is a french cybersecurity event, that brings together more than 350 participants each year, from various backgrounds : students, professionals...

  • BITSCTF

    Official URL
    Total events: 7
    Avg weight: 21.54

    BITSCTF 2025 is a jeopardy-style CTF competition organized by BITSkrieg from BITS Pilani, Goa Campus, India. This flagship event of our annual tech festival, Quark, caters to...

  • ph0wn

    Official URL
    Total events: 7
    Avg weight: 21.50

    Ph0wn is a jeopardy style CTF dedicated to smart devices (IoT, embedded systems, smart phones…). Example: challenges on connected weather station, IP webcams, smart phones et...

  • UTCTF 2025

    Official URL
    Total events: 7
    Avg weight: 40.99

    Online, jeopardy-style CTF run by the Information & Systems Security Society at the University of Texas at Austin. Free to play, with prizes offered to University teams. Open...

  • X-MAS CTF

    Official URL
    Total events: 7
    Avg weight: 24.29

    X-MAS CTF is the competition organized by HTsP with the purpose of learning and having fun while solving jeopardy-style challenges.

    We welcome both beginners and expe...

  • b01lers CTF

    Official URL
    Total events: 7
    Avg weight: 36.66

    CTF Name: b01lers CTF
    Event Logo: Attached
    Start Time: 00:00 UTC March 14
    End Time: 00:00 UTC March 16
    Official Site URL: b01lersc.tf
    Event Format: J...

  • Crypto CTF

    Official URL
    Total events: 7
    Avg weight: 53.62

    Crypto CTF is an online competition for hackers to test, evaluate, and expand their skills in exploiting cryptography. In this CTF, we will provide various crypto challenges ...

  • WMCTF

    Official URL
    Total events: 7
    Avg weight: 44.12

    WMCTF is a jeopardy style CTF held by team W&M.

  • justCTF

    Official URL
    Total events: 7
    Avg weight: 52.15

    CTF event organized by justCatTheFish team.

    We are organizing justCTF 2025 this year, an online jeopardy competition that will be hosted on Saturday, 2nd of August 06...

  • Space Security Challenge

    Official URL
    Total events: 7
    Avg weight: 30.21

    The US Air Force, along with the Defense Digital Service, is challenging hackers from around the world to focus their skills and creativity to help achieve more secure operat...

  • HackPack CTF

    Official URL
    Total events: 7
    Avg weight: 33.91

    HackPack CTF is a security competition that is part of two security courses at NCSU: CSC-405 Computer Security and CSC-591 Systems Attacks and Defenses. The target audience i...

  • ImaginaryCTF

    Official URL
    Total events: 7
    Avg weight: 43.75

    We run daily CTF challenges on discord and our website with rounds which last a month each. We accept individuals (solo teams) as well as teams.

    For any questions or ...

  • CyberSci

    Official URL
    Total events: 7
    Avg weight: 25.00

    CyberSci is Canada's national Cyber Security Challenge for university and college students.
    - Think you've got an elite team of students? Come and prove it. Compete a...

  • PHD CTF Finals

    Official URL
    Total events: 6
    Avg weight: 46.00

    All tasks are available here: http://ctfarchive.phdays.com/

  • Nuit du Hack CTF Finals

    Official URL
    Total events: 6
    Avg weight: 22.44

  • Ghost in the Shellcode

    Official URL
    Total events: 6
    Avg weight: 65.00

  • picoCTF

    Official URL
    Total events: 6
    Avg weight: 0.00

    Highly recommended as anyone's first CTF, picoCTF is a traditional challenge-based competition with a two-week annual competition period that rolls into a year-round accessib...

  • STEM CTF

    Official URL
    Total events: 6
    Avg weight: 21.66

    In support of STEM outreach, MITRE hosts an annual Capture the Flag (CTF) competition. High school and undergraduate college students have the opportunity to compete in cyber...

  • TokyoWesterns/MMA CTF

    Total events: 6
    Avg weight: 78.06

  • Pwn2Win CTF

    Official URL
    Total events: 6
    Avg weight: 56.43

    Brazilian Thematic CTF, organized by Epic Leet Team members.

    Most original and multidisciplinary competition in the world!

  • Security Fest

    Official URL
    Total events: 6
    Avg weight: 36.17

    Security Fest is an annual IT-security conference in Gothenburg, Sweden.

  • M*CTF online

    Official URL
    Total events: 6
    Avg weight: 30.68

    Qualifying tournament before the final competition M*CTF among universities of Moscow city. Any team can take part, the 10 strongest teams of various Moscow universities pass...

  • DiceCTF Finals

    Official URL
    Total events: 6
    Avg weight: 36.15

    For more information about DiceCTF, visit: https://ctf.dicega.ng

    Join our Discord server: https://discord.gg/dicectf

  • BCACTF

    Official URL
    Total events: 6
    Avg weight: 41.75

    BCACTF is a jeopardy-style competition hosted by the CTF Club at the Bergen County Academies.

  • Arab Security Cyber Wargames

    Official URL
    Total events: 6
    Avg weight: 21.67

    Arab Security Cyber Wargames Championship was held for the first time in the Middle East at The Nile Ritz-Carlton, Cairo, Egypt. It’s hosted by Arab Security Consultants and ...

  • D^3CTF

    Official URL
    Total events: 6
    Avg weight: 42.49

    Organized by @Vidar, @CNSS, @L-Team, the 1st D^3CTF is coming!

    Our teams have hosted the HCTF and LCTF for years, and in 2019 we decided to co-host this brand new CTF...

  • DamCTF

    Official URL
    Total events: 6
    Avg weight: 39.38

    A college CTF hosted by the OSU Security Club.

  • DawgCTF

    Official URL
    Total events: 6
    Avg weight: 44.94

    UMBC's annual CTF. Beginner level CTF aimed at college students, but open to all!

  • UMDCTF

    Official URL
    Total events: 6
    Avg weight: 51.27

    UMDCTF the annual CTF hosted by the University of Maryland Cybersecurity Club!

  • DownUnderCTF

    Official URL
    Total events: 6
    Avg weight: 52.60

    DownUnderCTF is the largest online Australia and Aotearoa (NZ) run Capture The Flag (CTF) competition. This CTF aims to up-skill the next generation of Cyber Security Profess...

  • HKCERT CTF

    Official URL
    Total events: 6
    Avg weight: 52.29

    Arouse the cyber security skills and awareness of the industry and students. And encourage participants’ problem solving with teamwork, creative thinking and cyber security s...

  • Winja CTF

    Official URL
    Total events: 6
    Avg weight: 12.97

    Registration link: https://ctf.winja.site/register

    Sponsor:
    Salesforce

    Challenge Categories:
    Web3
    Source Code Review
    Web
    Forensics

  • LakeCTF

    Official URL
    Total events: 6
    Avg weight: 36.48

    LakeCTF is the first CTF hosted by polygl0ts (and friends), the CTF team of EPFL.

    For the occasion of the 20th anniversary of the IC Faculty at EPFL we organize a CTF...

  • Blackhat MEA CTF

    Official URL
    Total events: 6
    Avg weight: 24.44

    Black Hat MEA was the largest infosec event held anywhere in the world in 2021, The conference co-organised by SAFCSP and Informa Tech.

  • SECUINSIDE CTF Quals

    Official URL
    Total events: 5
    Avg weight: 47.35

  • Boston Key Party CTF

    Official URL
    Total events: 5
    Avg weight: 60.01

    a yearly ctf put on by a small group of friends

  • BSIDES CTF

    no logo

    Official URL
    Total events: 5
    Avg weight: 27.38

  • Sharif University CTF

    Official URL
    Total events: 5
    Avg weight: 25.70

  • Break In

    no logo

    Official URL
    Total events: 5
    Avg weight: 10.70

  • OpenCTF

    Official URL
    Total events: 5
    Avg weight: 19.67

    DEF CON OpenCTF! Now with a feline touch.

    2019-? Neg9 https://ctftime.org/team/303
    2014?-2018 v& https://ctftime.org/team/359

  • Hack Zone Tunisia

    no logo

    Total events: 5
    Avg weight: 28.54

  • Codefest CTF

    Official URL
    Total events: 5
    Avg weight: 21.25

    Codefest presents Capture the Flag, inviting all hackers to show off their skills on a global platform. It provides students with an opportunity to tackle computer security p...

  • OmCTF

    Official URL
    Total events: 5
    Avg weight: 0.00

  • InnoCTF

    Official URL
    Total events: 5
    Avg weight: 0.00

  • WhiteHat Challenge

    Official URL
    Total events: 5
    Avg weight: 0.00

    WhiteHat Challenge is a CTF contest held periodically by WhietHat.vn for beginners in learning or researching cybersecurity as system admins, students in technical schools, e...

  • CyberTalents CTFs

    Official URL
    Total events: 5
    Avg weight: 25.00

    CyberTalents is a platform that ranks cyber security professionals across the globe by running CTF competitions


  • SEC-T CTF

    no logo

    Official URL
    Total events: 5
    Avg weight: 30.24

    SEC-T is non-profit annual IT security conference held in Stockholm, Sweden. This time we celebrate 10 years. We celebrate this with a retro-CTF. The date is Wednesday 13/9 1...

  • SwampCTF

    Official URL
    Total events: 5
    Avg weight: 34.80

    SwampCTF is a student-run competition and hosted by the University of Florida Student InfoSec Team (UFSIT). Join us online for jeopardy-style fun with challenges in Pwn, Reve...

  • WPICTF

    Official URL
    Total events: 5
    Avg weight: 30.51

    WPICTF, hosted by Worcester Polytechnic Institute Cyber Security Club.

  • *ctf

    Official URL
    Total events: 5
    Avg weight: 28.90

  • TetCTF

    Official URL
    Total events: 5
    Avg weight: 54.55

  • TSG CTF

    Official URL
    Total events: 5
    Avg weight: 33.74

    TSG is the official computer society of The University of Tokyo, and also the name of the CTF team organized by its members.
    Acquiring chance of organizing two domestic...

  • Balsn CTF

    Official URL
    Total events: 5
    Avg weight: 58.81

    This year, we'll hold Balsn CTF 2020 with high-quality and creative challenges!
    We cordially invite your team to join this party!

    Organizers: Balsn (https://bals...

  • ALLES! CTF

    Official URL
    Total events: 5
    Avg weight: 33.66

    Hi CTFers,

    ALLES! is looking forward to host their second CTF which will be held during the first weekend of September 2020. This Jeopardy style CTF is open to everyo...

  • Reply CTF Challenge

    Official URL
    Total events: 5
    Avg weight: 25.24

    Reply will be hosting the Reply Cyber Security Challenge, at its fourth edition, a team competition open to both students and professionals aged 16+. The online challenge wil...

  • HackTM CTF

    Official URL
    Total events: 5
    Avg weight: 24.66

    HackTM CTF is a ctf organized by WreckTheLine together with HackTM.
    The CTF consists of 2 stages: an online stage, which represents the qualifying stage for the final e...

  • RundergroundCTF

    Official URL
    Total events: 5
    Avg weight: 23.82

    Attack-Defence CTF by C4T BuT S4D team.

  • saarCTF

    Official URL
    Total events: 5
    Avg weight: 71.27

    saarCTF is an annual Attack-Defense CTF competition organized by saarsec, the CTF team of Saarland University.

  • INCOGNITO

    Official URL
    Total events: 5
    Avg weight: 22.41

    The first edition of INCOGNITO, the flagship CTF event, brought to you
    by Equinox. A variety of tasks and challenges await you, so who will
    capture the flags and ri...

  • DEADFACE CTF

    Official URL
    Total events: 5
    Avg weight: 29.55

    DEADFACE CTF features jeopardy-style challenges and is hosted by Cyber Hacktics and veterans of the United States Air Force in support of National Cyber Security Awareness Mo...

  • Shakti CTF

    Official URL
    Total events: 5
    Avg weight: 27.73

    ShaktiCTF is a Women-only, Jeopardy style online Capture The Flag competition. It's a beginner friendly CTF. It's main goal is to make more women interested in the field and ...

  • Cyber Grabs CTF

    Official URL
    Total events: 5
    Avg weight: 22.60

  • COMPFEST CTF

    Official URL
    Total events: 5
    Avg weight: 39.46

    A CTF event organized by Computer Science students of Universitas Indonesia. The main event is aimed for Indonesian citizens, but everyone is welcome to participate in the mi...

  • Bambi CTF

    Official URL
    Total events: 5
    Avg weight: 46.30

    The Bambi CTFs are a series of Attack-Defense CTFs primarily intended for beginners. They feature fewer and easier challenges and are shorter than full-fledged Attack-Defense...

  • Break the Syntax CTF

    Official URL
    Total events: 5
    Avg weight: 36.38

    Break the Syntax CTF is an event organized by PWr Synt@x Err0r team which is part of White Hats scientific circle at Wroclaw University of Science and Technology.

  • DiceCTF

    Official URL
    Total events: 5
    Avg weight: 59.38

    For more information about DiceCTF, visit: https://ctf.dicega.ng

    Join our Discord server: https://discord.gg/dicectf

  • San Diego CTF

    Official URL
    Total events: 5
    Avg weight: 26.90

    San Diego CTF, also known as SDCTF, is an annual Capture the Flag competition hosted by undergraduates at the University of California, San Diego. We encourage participation ...

  • 0xL4ugh CTF

    Official URL
    Total events: 5
    Avg weight: 25.41

    Format: Jeopardy

    Official URL: https://0xl4ugh.com/

    Event organizers :
    0xL4ugh Team

  • VishwaCTF

    Official URL
    Total events: 5
    Avg weight: 28.41

    VishwaCTF is the Flagship event of CyberCell-VIIT. It will be an Jeopardy style Ctf with team participation.
    The ctf will be live for 48 hours, and top winners will be ...

  • Securebug.se CTF

    Official URL
    Total events: 5
    Avg weight: 21.25

    SecureBug is organizing another CTF.
    Enjoy with your friends solving a number of challenges in different categories varying from basic to hard level.
    This CTF is f...

  • UMassCTF

    Official URL
    Total events: 5
    Avg weight: 42.87

    UMass Amherst's first public CTF, mainly targeted towards university students.

  • LINE CTF

    Official URL
    Total events: 5
    Avg weight: 43.85

    LINE CTF is organized by the LINE security team.

  • corCTF

    Official URL
    Total events: 5
    Avg weight: 49.72

    Organized by the Crusaders of Rust (a.k.a. Starrust Crusaders), an American and European collegiate team.

  • JerseyCTF

    Official URL
    Total events: 5
    Avg weight: 26.78

    JerseyCTF is a beginner-friendly Capture the Flag competition that aims to inspire interest in cybersecurity. Hosted by the NJIT ACM and NICC organizations and the NJIT SCI p...

  • Grey Cat The Flag

    Official URL
    Total events: 5
    Avg weight: 32.15

    Grey Cat The Flag is a jeopardy style CTF organized by NUS Greyhats (http://nusgreyhats.org/) and National Cybersecurity R&D Labs (http://ncl.sg/).

  • Russian CTF Cup

    Official URL
    Total events: 5
    Avg weight: 29.75

    26 October 2024 — 15 December 2024
    On-line/On-site
    Official URL: https://ctfcup.ru
    Event organizers: ACISO

  • DASCTF

    Official URL
    Total events: 5
    Avg weight: 16.50

    DASCTF is a professional skills competition organized by the Digital Talent Innovation Institute of Hangzhou Anheng Information Technology Co., Ltd. It aims to provide cybers...

  • PHD CTF Quals

    Official URL
    Total events: 4
    Avg weight: 46.15

    All tasks are available here: http://ctfarchive.phdays.com/

  • Hackfest

    Official URL
    Total events: 4
    Avg weight: 12.50

    Hackfest is a 2 day conference from 8am to 18pm and a 2 hacking games nights from 19pm to 3am, in Quebec, Canada. See games descriptions here
    http://www.hackfest.ca/en/...

  • BCTF

    no logo

    Official URL
    Total events: 4
    Avg weight: 28.33

    BCTF 2014 is a national contest in China.
    From the year 2015, BCTF will be opened to all participants around the world.

  • School CTF

    Official URL
    Total events: 4
    Avg weight: 25.00

    School CTF is a CTF competitions organized by SiBears team annually since 2010. This is a task-based (jeopardy style) CTF that only lasts for 5 hours, so we meet the constrai...

  • WhiteHat Contest

    Official URL
    Total events: 4
    Avg weight: 20.19

    WhiteHat Contest, a Capture The Flag contest, is held periodically by WhiteHat.vn, leading cyber security forum in Vietnam. WhiteHat Contest 11th will be the first Contest to...

  • QCTF

    Official URL
    Total events: 4
    Avg weight: 5.00

    On-site CTF for beginners, hosted by schools and universities around Russia and other CIS countries.

  • ctf.moscow

    Official URL
    Total events: 4
    Avg weight: 30.25

    Former Russian Cybersecurity Competition

  • SibirCTF

    Official URL
    Total events: 4
    Avg weight: 25.00

    Tomsk, Russian Federation

  • NeverLAN CTF

    Official URL
    Total events: 4
    Avg weight: 12.37

    A Middle School focused CTF event.
    Everyone is welcome to come join in the fun, but Middle School / Jr. High students will be scored separately for prizes.
    Go to o...

  • CODE BLUE CTF

    no logo

    Official URL
    Total events: 4
    Avg weight: 23.31

    In modern times the Internet is the vital of our society, which inevitably brings about cyber crimes, increasing in number and quantity. In late years the importance of infor...

  • HSE CTF

    Official URL
    Total events: 4
    Avg weight: 28.92

    On-site prequalified All-Russian students and schoolchildren CTF organized by HSE CTF team. VK: vk.com/hsectf TG: t.me/hsectf

  • CTF Russian Cup

    Official URL
    Total events: 4
    Avg weight: 0.00

    CTF Russian Cup is an annual wide CTF tournament between the winners of russian regional CTF-competitions.

  • b00t2root

    Official URL
    Total events: 4
    Avg weight: 21.88

    Hola hackers! Team NullKrypt3rs from IIITA is excited to announce b00t2root '20. A jeopardy style team CTF for the awesome infosec community .
    Get ready for some excitin...

  • Byte Bandits CTF

    Official URL
    Total events: 4
    Avg weight: 33.36

    A Capture the Flag Competition held by Byte Bandits, IIT Indore’s academic CTF team.

  • Aero CTF

    Official URL
    Total events: 4
    Avg weight: 46.49

    https://twitter.com/AeroCTF

    https://discord.gg/gEVbRFh8py

  • UUTCTF

    no logo

    Official URL
    Total events: 4
    Avg weight: 17.49

    UUTCTF is a student CTF competition which is going to be held by Urmia University of Technology (http://uut.ac.ir). The organization is going to be held in corporation with U...

  • CyBRICS CTF

    Official URL
    Total events: 4
    Avg weight: 31.58

    CyBRICS is a cross-university effort to bring students in BRICS countries into practical computer security through CTFs

  • zer0pts CTF

    Official URL
    Total events: 4
    Avg weight: 47.79

    zer0pts CTF is a Jeopardy-style CTF held by zer0pts, a Japanese CTF team.

  • SCTF-XCTF

    Official URL
    Total events: 4
    Avg weight: 31.32

    This is xctf's Southwest Division in China

  • perfect blue CTF

    Official URL
    Total events: 4
    Avg weight: 49.71

    CTF organized by the perfect blue team

  • BSidesTLV CTF

    Official URL
    Total events: 4
    Avg weight: 21.63

    BSidesTLV is one of Israel's leading cyber conferences for hackers and security researchers - also hosting the annual Capture The Flag (CTF) competition!

  • Hacker's Playground

    Official URL
    Total events: 4
    Avg weight: 36.50

    Hacker's Playground is a side event of SSTF(Samsung Security Tech Forum).

  • CyberTalents CTF

    Official URL
    Total events: 4
    Avg weight: 0.00

    Cyber Talents is a platform that ranks cyber security talents according to their real hands
    on skills in different cyber security categories by running capture the flag ...

  • SPbCTF's Student CTF

    Official URL
    Total events: 4
    Avg weight: 32.92

    Student CTF is a novice-level Capture The Flag organized by SPbCTF and supported by St. Petersburg Committee for Science and Higher Education.

    Free-to-play track is ...

  • BlueHens CTF

    Official URL
    Total events: 4
    Avg weight: 31.51

    Organized by the University of Delaware's own CTF team, the BlueHens CTF aims to provide interesting and unique challenges in a jeopardy-style format targeting academic as we...

  • DaVinciCTF

    Official URL
    Total events: 4
    Avg weight: 34.10

    DaVinciCTF is a jeopardy-style CTF competition held by DaVinciCode, the academic team of the École supérieure d'ingénieurs Léonard-de-Vinci.

    Stay updated by joining...

  • Tenable CTF

    Official URL
    Total events: 4
    Avg weight: 25.05

    The Tenable Capture the Flag is a Jeopardy-style competition that includes challenges on a range of topics. All skill levels are welcome to compete! Challenges will vary in d...

  • JUST CTF

    Official URL
    Total events: 4
    Avg weight: 0.00

  • HeroCTF

    Official URL
    Total events: 4
    Avg weight: 42.02

    HeroCTF is an online cybersecurity competition for beginners or advanced players that takes place once a year.

  • FooBarCTF

    Official URL
    Total events: 4
    Avg weight: 28.18

    FooBarCTF is a world-wide Capture The Flag (CTF) competition organized by GNU/Linux Users Group, NIT Durgapur during Aarohan, Annual Techno-Management Fest of NIT Durgapur.

  • LIT CTF

    Official URL
    Total events: 4
    Avg weight: 42.74

    Lexington Informatics Tournament CTF 2021 is a Jeopardy-style, beginner-friendly online CTF that's open to everyone. It is hosted by the LexMACS club from Lexington High Scho...

  • niteCTF

    Official URL
    Total events: 4
    Avg weight: 28.88

    niteCTF is a jeopardy style CTF for students interested in cybersecurity. niteCTF is designed to help students explore newer domains in cybersecurity as well as help existing...

  • BuckeyeCTF

    Official URL
    Total events: 4
    Avg weight: 40.06

    CTF run by students from Cyber Security Club @ Ohio State.

    BuckeyeCTF is intended to be beginner friendly and is geared towards university teams, but there will be a ...

  • TsukuCTF

    Official URL
    Total events: 4
    Avg weight: 0.00

    This is a CTF with Japanese OSINT as the main genre.
    There are a few other genres mixed in as well.
    Please note that there may be challenges themed on places that a...

  • BRICS+ CTF

    Official URL
    Total events: 4
    Avg weight: 27.73

    International team competitions BRICS+ Capture The Flag. The qualification stage will be online in CTF Jeopardy format. The best teams will be able to compete in the final, w...

  • TFC CTF

    Official URL
    Total events: 4
    Avg weight: 39.46

    The Few Chosen organizes its first CTF event between 26th-28th November. We are a group of 5 students that have participated in numerous CTFs and our passion for cybersecurit...

  • idekCTF

    Official URL
    Total events: 4
    Avg weight: 37.34

    idekCTF is an information security CTF competition organized by the idek team and is aimed at high school and university students, with difficult challenges catering to more ...

  • BYUCTF

    Official URL
    Total events: 4
    Avg weight: 35.38

    A CTF hosted by BYU Cyberia, the official CTF team of Brigham Young University.

  • KnightCTF

    Official URL
    Total events: 4
    Avg weight: 16.23

    Knight CTF is an online jeopardy style Capture the Flag (CTF) competition hosted by the Knight Squad community from Bangladesh. This is the first international CTF from Bangl...

  • CrewCTF

    Official URL
    Total events: 4
    Avg weight: 28.72

    CrewCTF is postponed for 2024 until further dates are announced. we will be announcing new dates shortly. It will not be taking place from 24th may to 26th may

    CrewC...

  • Space Heroes CTF

    Official URL
    Total events: 4
    Avg weight: 27.90

    Space Heroes CTF is an online jeopardy style Capture the Flag competition hosted by the FITSEC Team From Florida Tech.

    Join our Discord! https://discord.gg/wvuvDUjAeg...

  • T3N4CI0US CTF

    Official URL
    Total events: 4
    Avg weight: 9.64

    It is a competition designed to contribute to strengthening security capabilities and spreading security awareness to suit the purpose of cybersecurity.

  • WolvCTF

    Official URL
    Total events: 4
    Avg weight: 43.05

    Our challenges range from beginner to hard in difficulty. Our esteemed members have worked tirelessly to bring new and stimulating CTF challenges to pose varying levels of di...

  • Hack'In

    Official URL
    Total events: 4
    Avg weight: 0.00

    Cyber convention in Aix-en-Provence (France) : Hack'In
    CTF - conferences - workshop - partership.

  • Midnight Flag CTF - INSURRECTION

    Official URL
    Total events: 4
    Avg weight: 28.83

    Midnight Flag is a jeopardy-type ctf, organized by students.

    Our twitter : https://twitter.com/MidnightFlag

  • SekaiCTF

    Official URL
    Total events: 4
    Avg weight: 38.94

    SekaiCTF is a Capture The Flag event hosted by Team Project Sekai. We offer challenges in various difficulties and everyone is welcome to participate and enjoy.

  • HackDay CTF

    Official URL
    Total events: 4
    Avg weight: 14.91

    The HackDay challenge is a French cybersecurity competition for graduate students.

    The 25 teams selected during the online qualification phase will be invited to com...

  • Challenge the Cyber

    Official URL
    Total events: 4
    Avg weight: 0.00

    Challenge the Cyber organizes cybersecurity events for scholars and students in The Netherlands. Its most important activities include the yearly Challenge the Cyber CTF, the...

  • smileyCTF

    Official URL
    Total events: 4
    Avg weight: 35.31

    smileyCTF is a yearly CTF hosted by .;,;. (also known as smiley).

    Join our Discord: https://discord.gg/agpgGW372M

    formerly vsCTF hosted by View Source.

  • RPCA CTF

    Official URL
    Total events: 4
    Avg weight: 38.00

    RPCA CTF Cybersecurity Competition or RPCA CTF is an onsite and online with invitation jeopardy-style CTF event for the beginner hosted by the RPCA Cyber Club, Royal Police C...

  • BDSec CTF

    Official URL
    Total events: 4
    Avg weight: 14.12

    BDSec CTF is an online competition hosted by Knight Squad community from Bangladesh. This competition is for professional hackers, students and cyber security enthusiasts. No...

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