Developer Tools
Format, validate, encode and convert data used in software development and debugging.
Popular tasks
Format, validate, encode and convert data used in software development and debugging.
About Developer Tools
How to use Developer Tools
Format, validate, encode and convert data used in software development and debugging.
View all
Unicode Converter
Convert text between readable characters, Unicode code points and common escaped representations.
Hash Calculator
Calculate common text or local-file digests in the browser and compare exact hexadecimal output for integrity checks.
ASCII Converter
Convert text to decimal, hexadecimal or binary character codes and convert supported code values back to text.
Number Base Converter
Convert integers between binary, octal, decimal, hexadecimal and other supported positional number bases.
SQL Formatter
Format or compact SQL and normalize keyword case for easier review without connecting to a database.
JWT Decoder
Decode JSON Web Token header and payload segments locally without claiming that the token signature is valid.
Cron Expression Generator
Build and explain a standard five-field cron schedule for minute, hour, day of month, month and day of week.
Random Test Data Generator
Generate fictional names, emails, addresses, dates, IPs and JSON-shaped records for development and testing.
Developer Command Reference
Look up concise examples for common Git, shell, Docker and Node.js commands before adapting them to your environment.
Code Syntax Highlighter
Highlight source code using a selected or detected language and export a readable presentation for review or documentation.
CSS Inliner
Apply supported stylesheet rules directly to matching HTML elements as style attributes for email and portable snippets.
JSON Formatter and Validator
Format, minify and validate JSON locally, with parse feedback that helps isolate invalid commas, quotes, keys and nesting.
CSS Formatter and Minifier
Format CSS for readable review or minify valid CSS to reduce unnecessary whitespace.
HTML Formatter and Minifier
Format HTML into readable indentation or minify markup by removing unnecessary whitespace.
JavaScript Formatter and Minifier
Format JavaScript for readable inspection or create a compact version for testing and transport.
Text and File Diff Checker
Compare two texts or supported text files line by line and highlight added, removed and changed content.
URL Encoder and Decoder
Percent-encode text for use in URL components or decode valid percent-encoded sequences into readable text.
Base64 Encoder and Decoder
Encode text as Base64 or decode valid Base64 into readable text using the selected character encoding.