Developer Tools
A growing catalogue of privacy-first, client-side developer tools. Your data never leaves your browser.
JSON
JSON Formatter
Pretty-print, validate, minify, and explore JSON.
JSON Diff
Compare two JSON documents side by side.
JSON Schema Validator
Validate JSON documents against a schema.
JSON ⇄ CSV
Convert between JSON and CSV.
JSON ⇄ YAML
Convert JSON to YAML.
JSON Path Evaluator
Execute JSONPath expressions to query JSON documents.
Security & Auth
Encoding & Decoding
Text & Data
Regex Tester
Test regular expressions with live match highlighting.
cURL Builder
Build or parse cURL commands.
Timestamp Converter
Convert between Unix time and human-readable dates.
Color Picker & Converter
Convert between HEX, RGB, HSL, and OKLCH.
Markdown Previewer
Live-render Markdown to sanitized HTML.
Data Processing
SQL Formatter & Validator
Format and validate SQL with support for PostgreSQL, MySQL, and SQLite.