Code Formatters & Validators

Format, validate, and convert code in seconds: JSON, HTML, CSS, SQL, JavaScript, XML, YAML, Markdown, and more — clean up messy code or minify it for production.

• JSON Formatter — Format, validate, and minify JSON. Instant syntax checking. Free online JSON formatter and validator, works in your browser with no signup required.
• HTML Formatter — Format and minify HTML code with proper indentation. Free online HTML formatter and minifier, works in your browser with no signup or installation required.
• CSS Minifier — Minify CSS code to reduce file size. Remove comments and whitespace. Free online CSS minifier, runs entirely in your browser with no account needed.
• SQL Formatter — Format and beautify SQL queries for better readability. Free online SQL formatter, works in your browser with no signup or installation required.
• JavaScript Minifier — Fast and lightweight tool for minifying JavaScript code by removing whitespace, comments, and redundant characters reducing file size for better web performance. Free online JavaScript minifier, works in your browser with no signup required.
• XML Formatter — Clean and fast tool for formatting and prettifying raw XML code with proper indentation and structure, making it easy to read, debug, and validate XML documents.
• Markdown to HTML — Convert Markdown to HTML with live preview. Free online Markdown to HTML converter, works entirely in your browser with no signup required.
• YAML JSON Converter — Fast and reliable tool for converting YAML to JSON and JSON to YAML instantly, perfect for developers working with config files, APIs, and cloud infrastructure.
• JSON to CSV Converter — Convert JSON arrays to CSV spreadsheet format and vice versa. Free online JSON to CSV converter, works instantly in your browser with no account needed.
• JSON to TypeScript — Smart tool that instantly converts JSON objects into clean TypeScript interfaces and types, saving developers time and eliminating manual type definition work.
• Regex Tester — Test and debug regular expressions with live match highlighting. Free online regex tester with real-time feedback, no signup or installation required.
• Timestamp Converter — Convert Unix timestamps to human-readable dates and back. Free online Unix timestamp converter, works instantly in your browser with no account needed.
• UUID Generator — Generate random UUIDs (v4) and ULIDs instantly. Free online UUID and ULID generator, works in your browser with no account or installation needed.
• Cron Generator — A simple tool for building and validating cron expressions visually, perfect for developers who need to schedule tasks without memorizing cron syntax.
• Hash Generator — Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text. Free online hash generator, runs entirely in your browser, your data never leaves your device.