Developer Tools
JSON, encoding, hashing, formatting and other everyday tools for developers.
22 free tools · No sign-up required · Runs in your browser
JSON Formatter & Validator
Format, beautify and validate JSON instantly with clear error locations.
JSON to CSV Converter
Convert a JSON array of objects into a downloadable CSV spreadsheet.
CSV to JSON Converter
Turn a CSV file or pasted spreadsheet data into structured JSON.
JSON to XML Converter
Convert JSON data into well-formed XML markup.
XML to JSON Converter
Convert XML documents into clean, structured JSON.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to plain text.
JWT Decoder
Decode a JSON Web Token to inspect its header, payload and expiry.
UUID / GUID Generator (v4)
Generate cryptographically random UUID v4 identifiers instantly.
URL Encode / Decode
Percent-encode or decode URLs and query string parameters.
HTML Encode / Decode
Escape text into safe HTML entities or decode entities back to text.
SQL Formatter / Beautifier
Beautify messy SQL queries with proper indentation and keyword casing.
Regex Tester & Debugger
Test regular expressions live against sample text with match highlighting.
Cron Expression Generator
Build and understand cron expressions with a simple visual form.
HTML / CSS / JS Minifier
Shrink HTML, CSS or JavaScript by removing whitespace and comments.
YAML ↔ JSON Converter
Convert YAML configuration files to JSON and back, instantly.
SHA256 Hash Generator
Generate a SHA-256 hash from any text or file, instantly and privately.
MD5 Hash Generator
Generate an MD5 hash from text or a file instantly in your browser.
Curl to Fetch / Axios Converter
Convert a curl command into equivalent JavaScript fetch or Axios code.
GraphQL Query Formatter
Beautify GraphQL queries and mutations with clean, consistent indentation.
Chmod Calculator (Linux Permissions)
Convert checkbox permissions into chmod octal and symbolic notation.
HTACCESS Redirect Generator
Generate Apache .htaccess redirect rules without memorizing syntax.
Diff Checker (Text/Code Comparison)
Compare two blocks of text or code and see exactly what changed.
Other Categories
SEO & Webmaster Tools
Meta tags, sitemaps, schema markup and other tools to help your site rank.
Image & Graphics Tools
Compress, convert, resize and edit images entirely in your browser.
Text & Word Tools
Count, clean, convert and compare text instantly.
PDF Tools
Merge, split, compress and convert PDF files without uploading them anywhere unsafe.
AI Utilities
Prompt builders and content generators to speed up your writing workflow.
Color & UI Tools
Pick colors, build gradients, shadows and check accessibility contrast.
Math & Converters
Calculators and unit converters for everyday math problems.
Security & Privacy Tools
Generate strong passwords and hashes without sending your data anywhere.