Developer Tools

🆔 UUID Generator Free Generate v4 UUIDs in bulk, ready to copy. 🔁 Base64 Encoder / Decoder Free Encode and decode Base64 text instantly. 📋 JSON Formatter Free Beautify, minify and validate JSON. 🌐 URL Encoder / Decoder Free Percent-encode and decode URLs and query strings. 🏷️ HTML Entity Encoder Free Encode and decode HTML entities safely. 🔓 JWT Decoder Free Decode a JWT and inspect its header and payload. 📄 Markdown Previewer Free Write Markdown and preview the rendered HTML live. ⚙️ Regex Tester Free Test regular expressions and highlight every match. ⏱️ Cron Expression Explainer Free Translate a cron expression into plain English. 🗜️ HTML Minifier Free Minify HTML by stripping comments and whitespace. 🗜️ CSS Minifier Free Compress CSS to the smallest possible size. 🗜️ JavaScript Minifier Free Shrink JavaScript by removing comments and spacing. 🔟 Number Base Converter Free Convert between binary, octal, decimal and hex. 🕐 Unix Timestamp Converter Free Convert Unix timestamps to dates and back. 📑 CSV to JSON Free Convert CSV data into clean JSON instantly. 📈 JSON to CSV Free Turn a JSON array into a downloadable CSV. 🗄️ SQL Formatter Free Beautify and indent SQL queries for readability. 📃 XML Formatter Free Pretty-print and indent XML, or minify it. ❓ Query String Parser Free Parse a URL query string into readable key/value pairs. 🕵️ User Agent Parser Free Break down a browser user-agent string. 🚦 HTTP Status Codes Free Look up what every HTTP status code means. 📄 JSON to YAML Free Convert JSON into readable YAML. 📃 YAML to JSON Free Convert simple YAML into JSON. 🗂️ JSON to XML Free Convert a JSON object into XML. ⛓️ JSON String Escaper Free Escape or unescape text for JSON strings. 🧭 JSON Path Finder Free Explore JSON and copy the path to any value. 🔠 Base32 Encoder Free Encode and decode Base32 text. 🔡 Text to Hex Free Convert text to hexadecimal and back. 📑 CSV Column Tools Free Extract, reorder or delete CSV columns. 📐 Markdown Table Generator Free Build Markdown tables visually. 🧱 HTML Table Generator Free Generate an HTML table from rows and columns. 🎯 UTM Campaign Builder Free Build trackable campaign URLs with UTM tags. 🌐 URL Parser Free Break a URL into protocol, host, path and query. 🏷️ SEO Meta Tag Generator Free Generate title, description and meta tags. 📰 Open Graph Generator Free Create Open Graph and Twitter card tags. 🤖 robots.txt Generator Free Build a robots.txt file with simple options. ⏰ Crontab Builder Free Build a cron expression from plain choices. 🆔 UUID Validator Free Check and identify UUID versions. 💳 Card Number (Luhn) Validator Free Validate card numbers with the Luhn check. 🖧 IP Subnet Calculator Free Work out network, broadcast and host ranges from CIDR. 🔎 Unicode Lookup Free Inspect the code point behind any character. 🔤 JSON Key Sorter Free Sort all JSON object keys alphabetically. 🥞 JSON Flattener Free Flatten nested JSON into dot-notation keys. 📑 TSV ↔ CSV Converter Free Convert between tab and comma separated data. 📝 HTML to Markdown Free Convert HTML into clean Markdown. 🧹 HTML Tag Remover Free Strip all HTML tags and get plain text. 🎀 CSS Beautifier Free Expand minified CSS into readable form. 🎀 HTML Beautifier Free Indent and format messy HTML. ↩️ Line Ending Converter Free Convert between Windows (CRLF) and Unix (LF) endings. 🔣 Number Formatter Free Add thousands separators and locale formatting. 🔗 Slug to Title Free Turn a-url-slug back into readable Title Text. 🔐 htpasswd Generator Free Generate htpasswd lines for basic auth. 🧮 Chmod Calculator Free Convert file permissions between rwx and octal (755). 🙈 .gitignore Generator Free Build a .gitignore from common presets. 📜 Regex Cheat Sheet Free Searchable regular expression reference. ⌨️ JavaScript KeyCode Finder Free Press any key to see its event.key and code. 📂 MIME Type Lookup Free Look up MIME types by file extension and back. 🔌 Port Number Lookup Free Reference of common network ports. ✅ Email Validator Free Check email syntax and catch common typos. 💳 Test Card Generator Free Generate Luhn-valid card numbers for testing. 🎰 Random String Generator Free Random strings with a custom length and charset. 🆔 Short ID Generator Free Generate short, URL-safe unique IDs. 🖼️ Base64 to Image Free Decode a Base64 data URI back into an image.