Free Developer Tools: Format, Encode, Convert and Generate in Your Browser

Format and validate JSON with a fast developer tool for readable output, error checks, and local processing.

Format SQL queries locally for MySQL, PostgreSQL, SQLite, and SQL Server dialects.

Test regex patterns against text with match and group details.

Turn 5-field cron expressions into plain English schedules.

Pretty-print XML with clean indentation and readable structure.

Encode or decode Base64 strings instantly with local processing.

Encode or decode URLs and query parameters instantly.

Decode JWT headers and payload claims locally without uploads.

Convert binary, decimal, and hex values with synchronized output.

Encode or decode HTML entities instantly for safer snippets.

Convert JSON payloads into TypeScript, JavaScript, Go, Rust, Java, or C# models locally in your browser.

Convert cURL commands into JavaScript fetch, Axios, or Python requests snippets locally.

Convert raw SVG markup into a React JSX component locally with common attribute cleanup.

Convert Unix timestamps and date strings into readable formats.

Convert CSV to JSON or JSON to CSV with validation and instant downloads.

Convert Markdown into clean HTML with preview-ready output.

Convert HEX, RGB, and HSL colors with a live visual preview.

Convert YAML documents into formatted JSON instantly.

Minify CSS by removing comments and extra whitespace.

Minify JavaScript locally for quick debugging and compact sharing.

Compare two text blocks line by line and review changes.

Optimize inline SVG markup by stripping comments and excess whitespace.

Generate QR codes instantly for any URL or text with browser-based preview and PNG download.

Generate realistic JSON arrays of dummy users, emails, UUIDs, statuses, and dates locally for testing.

Generate strong random passwords locally with configurable length, uppercase, lowercase, numbers, and symbols.

Generate and sign mock HS256 JSON Web Tokens locally with editable header, payload, and secret fields.

Generate MD5, SHA-256, and SHA-512 hashes from any text locally.

Generate UUID v4 values in bulk with format options.

Generate harmonious color palettes and CSS variables from a base color.

Count words, characters, sentences, paragraphs, lines, reading time, and readability locally as you type.