Developer Tools
Format JSON, encode Base64, hash strings, generate UUIDs and minify code.
JSON Formatter & Validator
Beautify, minify and validate JSON in your browser.
Developer ToolsBase64 Encoder & Decoder
Encode text to Base64 or decode it back instantly.
Developer ToolsURL Encoder & Decoder
Percent-encode or decode URLs and query parameters.
Developer ToolsUUID Generator
Generate random version 4 UUIDs in bulk.
Developer ToolsHash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
Developer ToolsCSS Minifier
Compress CSS by removing comments and whitespace.
Developer ToolsUnix Timestamp Converter
Convert between Unix timestamps and human dates.
Developer ToolsMarkdown to HTMLNEW
Convert Markdown to clean HTML and copy the code.
Developer ToolsNumber Base ConverterNEW
Convert between binary, octal, decimal and hexadecimal live.
Developer ToolsText to Binary ConverterNEW
Convert text to binary and binary back to text.
Developer ToolsASCII / Unicode Code ConverterNEW
Convert text to character code points and back.
Developer ToolsMorse Code TranslatorNEW
Translate text to Morse code and Morse back to text.
Developer ToolsCaesar Cipher EncoderNEW
Encode and decode text with a Caesar shift cipher.
Developer ToolsHTML Entity Encoder / DecoderNEW
Encode text to HTML entities or decode them back.
Developer ToolsJWT DecoderNEW
Decode a JSON Web Token's header and payload.
Developer ToolsMarkdown Table GeneratorNEW
Turn CSV or pasted data into a Markdown table.
Developer ToolsMore about developer tools
Developer Tools on Outilo are free, fast and run in your browser. Pick a tool above to get started — no signup, no uploads, no limits.