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gchq/CyberChef

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The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

42 mentions on Hacker News by 35 people: 12 stories, 30 comments · first 2016-11-28 · latest 2026-07-21

Mentions per year 42 mentions · busiest year 2019 (7)
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  1. Nice! Reminds me a little of https://github.com/gchq/CyberChef
    comment by ruairidhwm · 2026-07-21 · in Show HN: QuiverKit – 62 developer tools that run offline
  2. ▲ 3
    Cyberchef: A Web App for Encryption, Encoding, Compression and Data Analysis
    story by stefankuehnel · 2026-01-06 · 0 comments
  3. …with the advantage that you can combine multiple steps to create data transformation pipelines. https://github.com/gchq/CyberChef
    comment by fainpul · 2025-11-16 · in Show HN: HashCodeTools – 17 Free Privacy-Focused Dev Tools
  4. Just in case you need it: https://github.com/gchq/CyberChef I was just trying to be helpful, since it was relevant to content in the post…
    comment by corytheboyd · 2024-10-23 · in Everything I built with Claude Artifacts this week
  5. ▲ 2
    CyberChef: A web app for encryption, encoding, compression and data analysis
    story by stefankuehnel · 2024-10-17 · 0 comments
  6. ▲ 1
    CyberChef – The Cyber Swiss Army Knife
    story by sanbor · 2024-09-09 · 0 comments
  7. Curiously, there is a similar tool made by GCHQ (UK's intelligence) https://github.com/gchq/CyberChef which I don't use neither because of trust issues (even though it's open source)
    comment by sanbor · 2024-09-09 · in DevHub.app – Developer Utilities for macOS
  8. …nothing wrong, but we can't provide assurances about the code on those sites. The official URL is https://github.com/gchq/CyberChef .
    comment by gchq-7703 · 2024-08-15 · in Open-source utils for devs who don't like ads
  9. …via the 'cyberchef' NPM package[0] and the license permits embedding into other applications. [0] https://github.com/gchq/CyberChef/wiki/Node-API
    comment by gchq-7703 · 2024-07-23 · in Show HN: VS Code Extension to skip the noisy web tools (JSON Prettify, and more)
  10. …There's a list of all signatures we detect here[1]. The magic implementation is here[2]. [0] https://github.com/gchq/CyberChef/blob/master/src/core/lib/F... [1] https://github.com/gchq/CyberChef/blob/master/src/core/lib/F... [2]…
    comment by gchq-7703 · 2024-02-02 · in CyberChef from GCHQ: Cyber Swiss Army Knife
  11. ▲ 3
    UK GCHQ's CyberChef
    story by raister · 2023-12-28 · 2 comments
  12. …or if it's the perfect reason to use QuaranTab. [1] https://gchq.github.io/CyberChef/ [2] https://github.com/gchq/CyberChef/releases/
    comment by justin_oaks · 2023-09-11 · in Show HN: Firefox addon to quarantine a tab to use offline with private data
  13. ▲ 4
    CyberChef 10
    story by unsignedint · 2023-03-22 · 2 comments
  14. …For example, for various data format related concerns, I've seen CyberChef be pretty good: https://github.com/gchq/CyberChef As for some binary file format conversations, HRConvert2 seems viable: https://github.com/zelon88/HRConvert2 If…
    comment by KronisLV · 2023-03-13 · in Ask HN: Is it just me, or could file conversion websites be a honeypot?
  15. …1 year ago: https://news.ycombinator.com/item?id=29982286 (54 comments) Full source code is here: https://github.com/gchq/CyberChef
    comment by metadat · 2023-01-14 · in Show HN: Kody Tools – I developed 300 tools in 6 months
  16. ▲ 194
    CyberChef – The Cyber Swiss Army Knife
    story by tempodox · 2022-09-03 · 24 comments
  17. …that you use it. I use a local copy. You can find a downloadable zip file in the releases section: https://github.com/gchq/CyberChef/releases You could also build it from the source, but I haven't bothered to set that up.
    comment by justin_oaks · 2022-08-16 · in Handpicked No-Signup Tools
  18. Getting and using a local copy of CyberChef ( https://github.com/gchq/CyberChef ) covers much more useful tools than this currently. Though this one looks a tad prettier.
    comment by tehno · 2022-02-10 · in DevToys for macOS
  19. …Edit: I had missed that cyberchef offers a node API exposing most of its operations: https://github.com/gchq/CyberChef/wiki/Node-API
    comment by kekebo · 2022-01-18 · in CyberChef – The Cyber Swiss Army Knife
  20. Interesting point: They just use Gmail.[1] [1]: https://github.com/gchq/CyberChef/commit/c423de545fd0d27aabe...
    comment by jinseokim · 2022-01-18 · in CyberChef – The Cyber Swiss Army Knife
  21. I think the landing page is more informative personally: https://github.com/gchq/CyberChef
    comment by usgroup · 2022-01-18 · in CyberChef – The Cyber Swiss Army Knife
  22. …all have what seems like dedicated accounts with no 'legal name'. Take for example this: https://github.com/gchq/CyberChef/commits?author=n1474335 n1474335 Great name. In typical GCHQ style they have good OPSEC. You can find more…
    comment by DerekBickerton · 2022-01-18 · in CyberChef – The Cyber Swiss Army Knife
  23. …subcontract a lot, so may be harder to weed out. GCHQ have some fascinating stuff out there though https://github.com/gchq/CyberChef/blob/master/src/core/opera...
    comment by lucideer · 2021-12-16 · in Crypto wallet security as seen by security engineers
  24. Chef from gchq refers to https://github.com/gchq/CyberChef
    comment by homarp · 2021-07-14 · in Ghidra: A software reverse engineering suite of tools developed by the NSA
  25. …published one of the most accessible and intuitive reverse-engineering tools I've ever used: https://github.com/gchq/CyberChef
    comment by chaorace · 2021-01-05 · in Busiest hour ever in the history of Gov.uk 17M page requests just 21 5xx errors
  26. …projects like CyberChef [1], but none of them were providing the convenience I was looking for. [1] https://github.com/gchq/CyberChef
    comment by trungdq88 · 2020-09-28 · in Show HN: DevUtils.app – Developer Utilities for macOS
  27. …'smart detect' feature of DevUtils since it's web-based. [1] https://gchq.github.io/CyberChef [2] https://github.com/gchq/CyberChef
    comment by arthurfm · 2020-09-28 · in Show HN: DevUtils.app – Developer Utilities for macOS
  28. …and JSON Validation / Pretty as well. You can experiment with insignificant data here [1]. [0] https://github.com/gchq/CyberChef [1] https://gchq.github.io/CyberChef/
    comment by evanreichard · 2020-09-02 · in Why I Actively Discourage Online Tooling like jwt.io and Online JSON Validators
  29. ▲ 9
    GCHQ CyberChef: The Cyber Swiss Army Knife
    story by natcombs · 2020-08-29 · 0 comments
  30. …to the article. If you want to play with various algorithms in your browser you can go here: https://github.com/gchq/cyberchef
    comment by SCHiM · 2020-08-29 · in The Joy of Cryptography
  31. Node API - https://github.com/gchq/CyberChef/wiki/Node-API
    comment by kim031 · 2019-08-23 · in CyberChef – Cyber Swiss Army Knife
  32. …the express purpose of contributing code to CyberChef and nothing else. I admire their OPSEC (From: https://github.com/gchq/CyberChef/graphs/contributors ) https://github.com/n1474335 https://github.com/j433866 https://github.com/d98762625…
    comment by octosphere · 2019-08-23 · in CyberChef – Cyber Swiss Army Knife
  33. Wow I actually thought of building a tool similar to this for CTFs, specifically this feature: https://github.com/gchq/CyberChef/wiki/Automatic-detection-o... This is REALLY cool. Basically given an unknown string or file from something…
    comment by malwrar · 2019-08-23 · in CyberChef – Cyber Swiss Army Knife
  34. ▲ 93
    Enigma, the Bombe, and Typex
    story by segfaultbuserr · 2019-03-25 · 8 comments
  35. ▲ 9
    Enigma, the Bombe, and Typex Simulators
    story by privong · 2019-03-22 · 1 comment
  36. ▲ 1
    Using CyberChef to Decode Enigma, the Bombe, and Typex
    story by sbuk · 2019-03-18 · 0 comments
  37. ▲ 4
    CyberChef's Implementations of the Wartime Enigma, Bombe and Typex Machines
    story by artemisbot · 2019-03-14 · 0 comments
  38. ▲ 1
    CyberChef Magic – automatic detection of encoded data
    story by artemisbot · 2018-08-07 · 0 comments
  39. Introduced me to CyberChef ( https://github.com/gchq/CyberChef ) which has since become the open source project I contribute to frequently.
    comment by artemisbot · 2018-02-19 · in Ask HN: What has HN given you?
  40. That's why you fetch the ZIP from Github here: https://github.com/gchq/CyberChef/tree/gh-pages Then you download it, and open it in a sandbox VM with no Internet access
    comment by zerognowl · 2016-11-28 · in CyberChef – A Cyber Swiss Army Knife
  41. https://github.com/gchq/CyberChef
    comment by painted · 2016-11-28 · in CyberChef – A Cyber Swiss Army Knife
  42. https://github.com/gchq/CyberChef/blob/master/src/js/operati... // That's a bad miss!
    comment by robin_reala · 2016-11-28 · in CyberChef – A Cyber Swiss Army Knife