Free tools
Free tools for developers and teams
Small, fast utilities that run entirely in your browser. No sign-up, no uploads, no tracking of what you type.
All client-side: nothing leaves your browser
8 tools
- JSON Formatter & ValidatorFormat, minify and validate JSON, with the exact line and column of any error.Open tool
- Password GeneratorRandom passwords and passphrases from your browser’s secure random source, with an honest entropy estimate.Open tool
- Base64 Encoder & DecoderEncode or decode text (UTF-8 safe) and turn any file into a data URI.Open tool
- UUID GeneratorGenerate version 4 UUIDs in bulk, in the format your code or database expects.Open tool
- Hash Generator (SHA-256 and more)SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, computed locally.Open tool
- Regex TesterTest regular expressions live with match highlighting, capture groups and a replace preview.Open tool
- Cron Expression ExplainerTurn a cron schedule into plain English and see the next five run times.Open tool
- Tech Stack AdvisorA short questionnaire that suggests a starting shortlist of technologies, with reasons.Open tool
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