Developer & Code Tools
Format, validate, and minify JSON, XML, HTML, CSS, SQL, test Regular Expressions and timestamps. Most tools here run in your web browser and need no account.
Available Tools in Dev Tools (17)
JSON Formatter & Validator
Beautify, validate, format, and minify JSON data
XML Formatter & Validator
Format, beautify, and validate XML and SVG documents
HTML Formatter & Beautifier
Format messy HTML markup
CSS Formatter & Minifier
Format, beautify, organize, and minify CSS stylesheets
SQL Formatter
Beautify SQL queries
URL Encoder & Decoder
Encode special characters for URLs or decode query strings
Regex Tester & Matcher
Test regular expressions in real-time
Unix Timestamp Converter
Convert Unix epoch timestamps to human dates
CSV to JSON Converter
Convert CSV spreadsheet data into clean
JSON to CSV Converter
Convert JSON arrays of objects into downloadable CSV…
HTML Entity Encoder & Decoder
Encode special characters into HTML entities or decode…
Markdown Previewer
Write Markdown and see a live, formatted HTML preview…
JWT Decoder
Decode JWT header and payload
HTML Minifier
Shrink HTML by removing extra whitespace
URL Parser
Break any URL into its parts
HTTP Status Codes
Look up common HTTP status codes
CSS Box Shadow Generator
Design shadows and copy the CSS