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Free Developer Tools
10 free developer utilities and converters. No signup required.
JSON Formatter
Format, validate, and beautify JSON code with syntax highlighting
JSON to CSV Converter
Convert JSON arrays to CSV format with proper quoting and escaping
CSV to JSON Converter
Convert CSV data to JSON format with delimiter options and header detection
Base64 Codec
Encode text to Base64 or decode Base64 strings with UTF-8 support
Regex Tester
Test and debug regular expressions with live matching
URL Encoder/Decoder
Encode URLs or decode URL-encoded strings with component support
Color Picker & Hex Converter
Pick colors and convert between HEX, RGB, HSL formats
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words
Markdown to HTML Converter
Convert Markdown to HTML with live preview and raw HTML output
SQL Formatter
Format, beautify, and minify SQL queries with keyword casing options
Essential Developer Utilities in Your Browser
Developers constantly need quick access to formatting, encoding, and conversion tools. Instead of installing desktop applications or searching through bookmarks, our browser-based developer tools give you instant results right in your browser tab. Every tool runs entirely client-side, meaning your data never leaves your machine.
Data Formatting and Validation
The JSON formatter validates, beautifies, and minifies JSON with syntax highlighting, making it easy to debug API responses or configuration files. For SQL queries, our SQL formatter supports keyword casing options and proper indentation across common SQL dialects. The Markdown to HTML converter provides live preview alongside raw HTML output, perfect for preparing documentation or README content.
Data Conversion
Moving data between formats is a daily task for most developers. Our JSON to CSV converter handles nested objects and arrays with proper quoting and escaping. The reverse CSV to JSON converter supports custom delimiters and automatic header detection. Both tools handle edge cases like quoted fields containing delimiters, newlines within fields, and Unicode characters.
Encoding and Testing
The Base64 codec encodes and decodes strings with full UTF-8 support, useful for working with APIs, data URIs, and authentication tokens. Our URL encoder and decoder handles both full URLs and individual components, essential for building query strings and debugging request parameters. The regex tester provides live matching with highlight visualization, helping you build and debug patterns before adding them to your codebase.
Design and Content Helpers
Front-end developers benefit from the color picker that converts between HEX, RGB, and HSL formats with a visual interface for selecting colors. The Lorem Ipsum generator creates placeholder text in paragraph, sentence, or word counts for prototyping layouts and testing typography. All developer tools are designed to be fast, private, and always available without accounts or installations.
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