✨ 70+ tools · All free · Privacy-first
The Dev Tools
You'll Actually Use
Format, encode, hash, generate, convert — every developer utility in one place. Everything runs in your browser. Zero data sent to servers.
Universal InspectorPaste anything — we'll detect what it is
Ctrl+Enter to run
Browse by Category
Encoders & Converters
Transform data between formats — Base64, URL, JSON↔YAML, hex, and more.
Formatters & Validators
Beautify and validate JSON, XML, YAML, SQL, HTML, CSS, regex, and more.
Crypto & Security
Hash, HMAC, AES, RSA, JWT, X.509, bcrypt, passwords — all client-side.
Generators
UUID, ULID, NanoID, fake data, mock JSON, QR codes, lorem ipsum, and more.
Network & Web
REST client, headers inspector, IP geo, CIDR calc, DNS, user-agent parser.
Date, Time & Math
Unix timestamps, timezone converter, date diff, cron builder, number base.
Text & String Tools
Word counter, sort/dedupe, find/replace, validators, lorem ipsum.
Frontend & Design
Color picker, WCAG contrast, gradient/shadow builder, code-to-image.
Featured Tools
Base64 Encode / Decode
Encode text or binary data to Base64, or decode Base64 strings back to plain text. Handles UTF-8 correctly.
JSON Formatter & Validator
Beautify, minify, or validate JSON. Configurable indentation. Instant error highlighting.
Regex Tester
Test regular expressions with instant match highlighting, group capture display, and find-and-replace mode.
Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-384, or SHA-512 hashes client-side. Uses WebCrypto for SHA hashes.
JWT Decoder
Decode and inspect JWT tokens instantly. View header, payload, and expiration status. No verification — safe for debugging.
UUID Generator
Generate UUID v4 (random) or UUID v7 (time-ordered, RFC 9562) identifiers. Bulk generation up to 100 at once.
Why Dev Tools !?
Private & Offline
All processing happens in your browser. Your data never leaves your device.
70+ Tools
A comprehensive suite covering every day developer tasks.
Open Source
Fully open source. Inspect the code, contribute, or self-host.
Blazing Fast
No server round-trips. Instant results with zero latency.