🛠️ Developer Tools
JSON, YAML, regex and more — 61 tools
JSON Formatter & Validator
Format, validate, and beautify JSON data online. Free JSON pretty printer with syntax highlighting.
JSON to YAML Converter
Convert JSON to YAML format instantly. Free online converter with copy support.
YAML to JSON Converter
Convert YAML to JSON format instantly. Free online converter with validation.
XML Formatter & Minifier
Format, beautify, and minify XML online. Free XML pretty printer and validator.
CSV ↔ JSON Converter
Convert between CSV and JSON formats instantly. Free two-way converter.
Base64 Encoder / Decoder
Encode and decode Base64 strings online. Free Base64 conversion tool.
URL Encoder / Decoder
Encode and decode URLs online. Free URL encoding tool for developers.
HTML Entity Encoder / Decoder
Encode and decode HTML entities online. Convert special characters to HTML-safe strings.
UUID Generator
Generate random UUIDs (v4) online. Free bulk UUID generation tool.
Regex Tester
Test regular expressions online with real-time matching and highlighting. Free regex tool.
JWT Decoder
Decode and inspect JSON Web Tokens online. View header, payload and expiration.
Hash Generator (SHA-1, SHA-256, SHA-512)
Generate SHA-1, SHA-256, and SHA-512 hashes online. Free hash calculator using Web Crypto API.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Live clock included.
Number Base Converter
Convert between Binary, Octal, Decimal, and Hexadecimal number systems instantly.
CSS Minifier & Beautifier
Minify and beautify CSS online. Reduce file size or make CSS readable again.
Markdown to HTML Converter
Convert Markdown to HTML with live preview. Free online Markdown renderer.
Color Converter (HEX / RGB / HSL)
Convert colors between HEX, RGB, and HSL formats. Free color picker and converter.
Binary Translator
Convert text to binary, hexadecimal, or octal and back. Free encoding translator.
JSON Key Sorter
Sort JSON object keys alphabetically (A-Z or Z-A). Deep sorting for nested objects.
JS Beautifier & Minifier
Beautify or minify JavaScript code online. Format messy JS or compress for production.
SQL Formatter
Format and beautify SQL queries online. Auto-indent and uppercase keywords.
Cron Expression Parser
Parse and explain cron expressions in plain English. See next 5 run times.
JSON to TypeScript
Convert JSON objects to TypeScript interfaces instantly. Generate type-safe code.
HTML to Markdown
Convert HTML to clean Markdown. Handles headings, links, lists, bold, italic, and more.
PX to REM Converter
Convert pixels to REM and REM to pixels. With reference table and custom base size.
JSON Path Tester
Test JSONPath expressions against JSON data. See matched values in real-time.
Data Size Converter
Convert between bits, bytes, KB, MB, GB, TB. SI and binary (IEC) units. Transfer time calculator.
HTML Formatter & Beautifier
Format, beautify, and indent HTML code online. Free HTML pretty printer.
JSON to GraphQL Schema
Generate GraphQL schema types from JSON data. Auto-generate types and queries.
YAML Validator
Validate YAML syntax online. Check for errors and format YAML files.
HTTP Status Codes Reference
Complete HTTP status code reference. Search and explore 1xx to 5xx codes with explanations.
CSS Gradient Generator
Create beautiful CSS gradients visually. Linear, radial, and conic gradient builder.
CSS Flexbox Generator
Visual CSS Flexbox layout builder. Generate flexbox code with a drag-and-drop interface.
CSS Grid Generator
Visual CSS Grid layout builder. Create complex grid layouts with an interactive tool.
Tailwind to CSS Converter
Convert Tailwind CSS classes to vanilla CSS. Extract plain CSS from Tailwind utilities.
SVG Optimizer
Optimize and minify SVG files. Reduce SVG file size by removing unnecessary metadata.
Live HTML/CSS/JS Preview
Write HTML, CSS, and JavaScript with live preview. Free online code playground.
Chmod Calculator
Calculate Unix file permissions. Convert between numeric and symbolic chmod notation.
.htaccess Generator
Generate Apache .htaccess rules. Redirects, caching, security headers, and more.
Regex Generator
Generate regular expressions from examples. Describe what you want to match in plain English.
Git Command Generator
Find the right Git command for any task. Searchable reference with examples.
CSV to HTML Table
Convert CSV data to formatted HTML tables. Copy table code instantly.
JSON to Table Viewer
Convert JSON arrays to readable tables. Visualize JSON data in tabular format.
Markdown Editor
Write Markdown with live preview, syntax highlighting, and toolbar shortcuts.
Text to Binary Converter
Convert text to binary code (0s and 1s). Binary to text decoder included.
Text to Hex Converter
Convert text to hexadecimal encoding and back. Free hex encoder/decoder.
HEX to RGB Converter
Convert HEX color codes to RGB values. Color preview included.
RGB to HEX Converter
Convert RGB values to HEX color codes. Find the hex code for any RGB color.
JSON to XML Converter
Convert JSON data to XML format. Free online JSON to XML transformer.