Developer utilities.
Private by design.
A growing collection of free browser-based tools for developers. Everything runs client-side — no servers, no data collection, no accounts.
11 tools
JSON Formatter
Format, validate, and minify JSON with syntax highlighting and error detection.
XML Formatter
Format and validate XML documents with tree visualization and error highlighting.
HTML Formatter
Beautify and minify HTML markup with configurable indentation and options.
Base64 Encoder
Encode and decode strings and files to/from Base64 format instantly.
Regex Tester
Test and debug regular expressions with real-time match highlighting and flags.
UUID Generator
Generate RFC-compliant UUIDs (v1, v4) in bulk with copy-to-clipboard.
Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-512 hashes from text or file input.
URL Encoder
Encode and decode URL components and query strings with character reference.
Color Picker
Pick, convert, and analyze colors between HEX, RGB, HSL, and HSV formats.
Cron Expression Parser
Parse, validate, and generate cron expressions with human-readable descriptions.
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