Developer Tools
Free browser-based developer utilities for formatting, validation, and text processing. JSON formatter, regex tester, and more. All processing runs locally in your browser.
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Free tools you can use right now, no signup required.
JSON Formatter & Validator
Beautify, minify, and validate JSON with live syntax highlighting. Runs entirely in your browser.
Open toolRegex Tester
Test and debug regular expressions with live match highlighting, flag toggles, capture groups, and example patterns.
Open toolBase64 Encoder and Decoder
Encode or decode Base64 strings instantly. Supports text, files, and URL-safe mode. All processing in your browser.
Open toolCSS Gradient Generator
Generate linear, radial, and conic CSS gradients with live previews, color stops, angle controls, and preset swatches.
Open toolCron Job Schedule Builder
Build cron expressions visually with plain-English explanations. See next 5 run times and copy instantly.
Open toolJWT Decoder and Inspector
Decode JWT tokens instantly. View header, payload, and claims. Check expiry status and get security analysis. Browser-only.
Open toolURL Encoder and Decoder
Encode or decode URLs and query strings instantly. Parse URL components and build query strings. Free, browser-only.
Open toolSQL Formatter and Validator
Format, beautify, and minify SQL queries online. Syntax highlighting, dialect support (MySQL, PostgreSQL, SQLite, SQL Server), and validation. Free, browser-only.
Open toolMarkdown to HTML Converter
Convert Markdown to HTML with a live preview. Supports tables, code blocks, task lists, and all GitHub Flavored Markdown. Free, no signup.
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