TOOL CATEGORY / 13
Focused developer utilities
Format, compare, sign and transform development data with focused browser utilities.
13available tools
HMAC Generator
Sign messages in your browser.
JSON Formatter
Validate, format or minify JSON.
CSV to JSON
Turn tabular text into structured data.
Timestamp Converter
Move between Unix time and dates.
Color Contrast
Check WCAG contrast with live preview.
CSS Gradient
Design a gradient and copy the CSS.
Regex Tester
Test patterns with clear match highlights.
Text Diff Checker
Compare two versions line by line.
CSP Builder
Build a Content Security Policy and flag risky directives.
JSON Schema Validator
Validate a JSON document against a local JSON Schema.
SQL Formatter
Format SQL with selectable dialects and indentation.
Markdown Preview
Render a safe Markdown preview without raw HTML.
Text Cleanup
Normalize, sort, deduplicate and change text case.