◧ Developer
JSON, code, and formatting tools for developers.
◨ Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text, with full Unicode and URL-safe support.
◧ DEVELOPER New◈ Binary to Text Converter
Decode 8-bit binary back into readable text instantly in your browser.
◧ DEVELOPER◧ CSS Minifier
Minify CSS to shrink stylesheet size, or expand minified CSS back into readable rules.
◧ DEVELOPER◧ CSV Column Extractor
Pull a single column out of pasted CSV data, with quote handling and de-duplication.
◧ DEVELOPER◪ CSV to JSON Converter
Convert CSV data into a clean JSON array, with quoted fields and custom delimiters handled correctly.
◧ DEVELOPER◈ Color Contrast Checker
Check text and background colour contrast against WCAG AA and AAA accessibility thresholds.
◧ DEVELOPER◫ Color Converter
Convert colors between HEX, RGB, HSL, and CSS values with a live preview swatch.
◧ DEVELOPER◒ Cron Expression Parser
Decode any five-field cron expression into plain English before you deploy it.
◧ DEVELOPER◪ HTML Entity Encoder / Decoder
Escape HTML special characters into entities, or decode entities back into readable text.
◧ DEVELOPER◫ HTML Formatter
Beautify messy HTML with clean indentation, or minify it down for production.
◧ DEVELOPER◕ HTTP Status Code Lookup
Look up any HTTP status code with its meaning, class and default cache behaviour.
◧ DEVELOPER▥ Htaccess Redirect Generator
Turn a list of old and new URLs into Apache .htaccess or nginx redirect rules.
◧ DEVELOPER◕ IP Subnet Calculator
Calculate network address, broadcast, subnet mask, host range and usable hosts from any IPv4 CIDR.
◧ DEVELOPER▦ JSON Escape / Unescape
Escape text into a safe JSON string value, or unescape one back into readable text.
◧ DEVELOPER Featured◧ JSON Formatter
Format, validate, and minify JSON with clear error messages.
◧ DEVELOPER◫ JSON to CSV Converter
Convert a JSON array of objects into CSV you can open directly in Excel, Numbers, or Sheets.
◧ DEVELOPER◪ JSON to YAML Converter
Convert JSON into clean, readable YAML for config files, CI pipelines, and Kubernetes manifests.
◧ DEVELOPER◪ JWT Decoder
Decode a JSON Web Token to read its header and payload claims, including expiry, locally.
◧ DEVELOPER◪ JavaScript Minifier
Strip comments and needless whitespace from JavaScript to cut file size before deployment.
◧ DEVELOPER◈ MIME Type Lookup
Find the correct MIME type for any file extension, or the extensions behind a MIME type.
◧ DEVELOPER◫ Markdown Preview
Write Markdown and see the rendered HTML live, then copy the generated markup.
◧ DEVELOPER◪ Meta Tag Generator
Generate SEO title, description, Open Graph, and Twitter Card meta tags for any page.
◧ DEVELOPER◪ Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36.
◧ DEVELOPER◫ Regex Tester
Test a regular expression against sample text and see every match, group, and index live.
◧ DEVELOPER▤ Robots.txt Generator
Generate a valid robots.txt with disallow rules, allow overrides, sitemap and crawl delay.
◧ DEVELOPER◫ SQL Formatter
Format SQL queries with clause-per-line layout and uppercase keywords for easy review.
◧ DEVELOPER New▣ SQL IN Clause Generator
Turn a pasted list of IDs or values into a ready-to-run SQL IN clause.
◧ DEVELOPER◧ Text Diff Checker
Compare two blocks of text line by line and highlight every addition, removal, and change.
◧ DEVELOPER◩ URL Encoder / Decoder
Percent-encode or decode URLs and query string values, component-safe or whole-URL.
◧ DEVELOPER◓ URL Parser
Break any URL into protocol, host, path, query parameters and fragment.
◧ DEVELOPER◧ URL Slug Generator
Turn any title into a clean, SEO-friendly URL slug with accents stripped and words hyphenated.
◧ DEVELOPER▣ UTM Link Builder
Build clean, consistent UTM tracking links for campaigns in Google Analytics.
◧ DEVELOPER◧ UUID Generator
Generate cryptographically random UUID v4 identifiers in bulk, ready to copy or download.
◧ DEVELOPER◔ User Agent Parser
Identify the browser, engine, operating system and device type behind any user agent string.
◧ DEVELOPER◧ XML Formatter
Pretty-print XML with proper indentation, or minify it, and catch malformed markup instantly.
◧ DEVELOPER▣ YAML to JSON Converter
Convert YAML configuration into formatted JSON right in your browser.