Paste it. Transform it. Keep it on your machine.
JSON, encode/decode, hashes, regex, and time tools in an IDE-style shell — light or dark, no signup, nothing uploaded.
Runs in your browser · No signup · Nothing leaves your device
Popular tools
JSON Beautifier & FormatterBase64 DecodeJWT DecodeUUID GeneratorEpoch & Unix Timestamp ConverterDiff Checker
Why DevKitBase
Local by default
payloads never hit our servers
Sidebar navigation
jump tools without hunting bookmarks
Light and dark
same muscle memory as your editor
Tools
JSON & Data
Format, validate, minify, and convert without leaving the tab.
Encode & Decode
Base64, URL, HTML entities, JWT peek, query strings.
Hash & ID
MD5/SHA digests, UUIDs, random strings — for checks, not vaults.
Text & Regex
Quick JS regex, case/slug, diff, lorem, cleanup.
Time & Misc
Epoch —date, cron in plain English, hex/rgb, number bases.
Runs in your browser · No signup · Nothing leaves your device