Developer Tools
10 ToolsLightweight, zero-latency developer utilities: JSON prettifying & validation, Base64 encoding, URL parsing, visual text diffs, UUID generation, Unix timestamps, and JWT inspection.
Available Tools (10)
JSON Formatter & Validator
Prettify, format, validate syntax, and minify JSON data with instant error highlighting.
Base64 Encoder / Decoder
Encode text and files to Base64 format, or decode Base64 strings to readable text.
URL Encoder & Decoder
Encode special characters in URLs using encodeURIComponent or encodeURI.
Text Diff Checker
Compare two text blocks and highlight line additions, removals, and changes.
UUID / GUID Generator
Generate cryptographically secure Version-4 UUIDs and GUIDs in bulk.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and convert calendar dates to epoch.
JWT Token Decoder
Decode and inspect JSON Web Token (JWT) header, payload, and expiration status.
HTML Entity Encoder / Decoder
Encode special characters into HTML entities (e.g. &, <) or decode entities to text.
Cryptographic Hash & Checksum Generator
Generate SHA-256, SHA-512, SHA-384, SHA-1, MD5, and HMAC hashes for text and local files.
Strong Password & Passphrase Generator
Generate cryptographically secure random passwords and memorable Diceware passphrases.