CyberChef

Browser “Cyber Swiss Army Knife” for encoding, decoding, and data transforms.

https://gchq.github.io/CyberChef/ (rel=ugc nofollow)

GCHQ’s open-source recipe builder for Base64, crypto, compression, extraction, and more. Runs in the browser; popular with security/devtools workflows. Also mirrored at cyberchef.org.

ownership_status=unclaimed · editorial_status=approved · verification_status(legacy)=unverified · updated_at=2026-09-13 · locales=en

Mirrors: markdown · json

Categories

devtools · privacy-local · converters

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Utileno

https://utileno.com/ko/

Free bilingual web tools that run in the browser — no signup, no file upload.

categories: utilities, converters, korea-tools, privacy-local · .md · .json

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Beautifier.io

https://beautifier.io/

js-beautify playground for JavaScript, HTML, and CSS.

categories: devtools · .md · .json

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Can I use

https://caniuse.com/

Browser support tables for web platform features.

categories: devtools · .md · .json

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Carbon

https://carbon.now.sh/

Turn source code into a shareable image.

categories: devtools · .md · .json

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crontab guru

https://crontab.guru/

Plain-English explainer for cron schedule expressions.

categories: devtools, utilities · .md · .json

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Cryptii

https://cryptii.com/

Modular encoding/decoding pipelines that run in your browser.

categories: converters, privacy-local, devtools · .md · .json

CyberChef

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