Curated for developers
for developers=19 tools
A hand-picked subset of the catalog.
Built for developers — fast, private, no signup.
JSON, regex, hashes, JWT, Base64, timestamps, UUIDs and the rest of the tools you reach for between commits — all running in your browser, no upload required.
Why this set
These are the converters and inspectors that show up in every code review and bug hunt: pretty-print a payload, decode a token, generate an ID, hash a string. Each tool runs entirely in your browser using native Web APIs (crypto.subtle, JSON.parse, the regex engine), so production payloads never leave your machine — safe to use on customer data without thinking twice.