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Format, validate, inspect, and test code and data formats while building websites, APIs, scripts, and software.
Choose a tool below to start working immediately.
Beautify or minify HTML with 2-space, 4-space, or tab indentation. Paste your code and get clean, formatted output instantly — no signup.
Developer ToolsPick any color and convert between HEX, RGB, HSL, and CMYK. Check WCAG contrast ratios and explore shades and tints — all in your browser.
Developer ToolsParse cron expressions into plain English and see the next scheduled run times. Supports 5 and 6-field cron syntax — validate and explain instantly.
Developer ToolsBeautify or minify CSS with 2-space, 4-space, or tab indentation. See the exact byte savings percentage after minifying — copy the result with one click.
Developer ToolsBeautify or minify JavaScript with 2-space, 4-space, or tab indentation. Shows byte savings percentage after minifying — copy the result with one click.
Developer ToolsFormat, validate, and minify JSON with syntax highlighting and error detection. Sort keys alphabetically and copy the result instantly — browser-only.
Developer ToolsDecode and inspect JWT header, payload, and claims instantly. Shows expiry status and all token fields — fully private, nothing sent to a server.
Developer ToolsTest regular expressions against any text in real time. See all matches highlighted with a count — ideal for building and debugging regex patterns.
Developer ToolsBeautify or minify SQL queries with keyword normalization and configurable indentation. Shows byte savings percentage after minifying — copy instantly.
Developer ToolsBeautify or minify XML with 2-space, 4-space, or tab indentation. Validates structure and shows errors — see byte savings percentage after minifying.
Developer Tools