Developer and Code Tools
Format, convert, encode and validate code and data with a fast developer toolbox, from JSON and Base64 to regex and hashing.
74 tools in this category
JSON Formatter
Prettify and indent JSON.
JSON Minifier
Compact JSON into one line.
JSON Validator
Check JSON syntax for errors.
JSON to CSV
Convert JSON data to CSV.
CSV to JSON
Convert CSV data to JSON.
JSON to XML
Convert JSON to XML.
XML to JSON
Convert XML to JSON.
XML Formatter
Prettify and indent XML.
YAML to JSON
Convert YAML to JSON.
JSON to YAML
Convert JSON to YAML.
HTML Formatter
Prettify and indent HTML.
HTML Minifier
Compress HTML markup.
CSS Formatter
Prettify and indent CSS.
CSS Minifier
Compress CSS code.
JS Formatter
Prettify JavaScript code.
JS Minifier
Compress JavaScript code.
SQL Formatter
Prettify and indent SQL.
Base64 Encoder
Encode text into base64.
Base64 Decoder
Decode base64 back to text.
URL Encoder
Percent-encode a URL.
URL Decoder
Decode a percent-encoded URL.
HTML Entity Encoder
Escape text into HTML entities.
HTML Entity Decoder
Unescape HTML entities to text.
JWT Decoder
Read the payload of a JWT.
UUID Generator
Generate random UUIDs.
GUID Generator
Generate globally unique IDs.
MD5 Hash Generator
Hash text with MD5.
SHA-256 Generator
Hash text with SHA-256.
Client Hash Tool
Hash text in the browser.
Regex Tester
Test regular expressions live.
Regex Cheat Sheet
Reference common regex patterns.
Cron Builder
Build a cron expression.
Cron Explainer
Describe a cron string in words.
HTML Entity Lookup
Look up HTML symbol codes.
ASCII Table Reference
Reference ASCII character codes.
Unicode Character Finder
Look up a unicode codepoint.
Emoji Unicode Lookup
Look up an emoji codepoint.
Markdown to HTML
Render markdown into HTML.
HTML to Markdown
Convert HTML back into markdown.
Markdown Live Preview
Edit and preview markdown side by side.
Markdown Table Generator
Build a markdown table.
HTML Table Generator
Build an HTML table.
Favicon Link Tags
Generate favicon head link tags.
Open Graph Generator
Build Open Graph social tags.
Twitter Card Generator
Build Twitter Card meta tags.
PWA Manifest Generator
Build a manifest.json file.
RSS Feed Generator
Build an RSS feed.
.htaccess Generator
Build Apache rewrite rules.
Slug Generator
Turn text into a URL slug.
Query String Parser
Read parameters from a URL.
Query String Builder
Build a URL query string.
Diff Checker
Compare two code snippets.
Code Beautifier
Format code in several languages.
Escape / Unescape String
Escape or unescape a string.
camelCase Converter
Convert text to camelCase.
snake_case Converter
Convert text to snake_case.
kebab-case Converter
Convert text to kebab-case.
Tabs to Spaces
Convert tabs into spaces.
Spaces to Tabs
Convert spaces into tabs.
LF / CRLF Converter
Convert line endings.
JSON Tree Viewer
Explore JSON as an expandable tree.
Mock Data Generator
Generate fake sample records.
Random JSON Generator
Generate sample JSON payloads.
Fake IP Generator
Generate random IP addresses.
User-Agent Parser
Read a user-agent string.
CSS Specificity Calculator
Score CSS selector specificity.
Box Model Visualizer
See margin and padding visually.
Viewport Size Checker
Read your screen dimensions.
Color Format Converter
Convert between dev colour models.
Text to Char Array
Split text into characters.
String Length Counter
Count byte and character length.
Escape HTML for Blog
Escape code to show it safely.
Data URI Generator
Turn a file into a data URI.
Number Base Playground
Convert binary, octal, decimal and hex.