Developer Tools

Format and beautify JSON with adjustable indentation.

Format and beautify JSON with adjustable indentation.

Validate JSON syntax and pinpoint errors instantly.

Decode JWT headers and payloads to inspect claims.

Generate random UUID v4 identifiers in bulk.

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.

Test regular expressions against sample text with live matches.

Convert between Unix timestamps and human-readable dates.

Format and beautify JavaScript code.

Compare two JSON documents and highlight the differences.

Generate TypeScript interfaces from a JSON sample.

Convert numbers between binary, octal, decimal and hexadecimal.

Generate a fluid clamp() value for responsive typography.

Format and beautify JSON with adjustable indentation.

Validate JSON syntax and pinpoint errors instantly.

Strip whitespace to compress JSON to its smallest size.

Decode JWT headers and payloads to inspect claims.

Encode text or files to Base64.

Decode Base64 strings back to text.

Percent-encode text for safe use in URLs.

Decode percent-encoded URLs back to plain text.

Generate random UUID v4 identifiers in bulk.

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.

Test regular expressions against sample text with live matches.

Convert between Unix timestamps and human-readable dates.

Format and indent SQL queries for readability.

Format and indent HTML markup for readability.

Convert colors between HEX, RGB, HSL and OKLCH.

Format and beautify JavaScript code.

Format and beautify CSS stylesheets.

Format and indent XML documents for readability.

Normalize Markdown heading and list spacing.

Compare two JSON documents and highlight the differences.

Generate TypeScript interfaces from a JSON sample.

Generate a JSON Schema from a sample JSON document.

Escape text into a JSON string literal, or unescape it back.

Convert text to and from \u Unicode escape sequences.

Convert numbers between binary, octal, decimal and hexadecimal.

Encode any file to a Base64 string or data URI.

Generate SHA-1, SHA-256 and SHA-512 hashes of a file.

Create and sign a JWT with an HMAC secret.

Search and look up the meaning of any HTTP status code.

Parse and explain raw HTTP response headers.

Generate a fluid clamp() value for responsive typography.

Convert JSON to YAML format.

Convert YAML to JSON format.