Developer Tools
Developer utilities — format and validate JSON/HTML/CSS/SQL, encode and decode, test regex, build CSS and cron, and generate git and docker commands.
JSON Formatter
Format, validate and minify JSON with error locations and highlighting.
Base64 Encoder and Decoder
Encode and decode text or files to and from Base64, UTF-8 safe.
URL Encoder and Decoder
Encode and decode URLs and URL components with clear examples.
JSON Validator
Check whether JSON is valid and see the exact error location.
JSON Minifier
Compress JSON by removing whitespace, safely in your browser.
JSON to CSV
Convert a JSON array of objects into CSV.
CSV to JSON
Convert CSV data into a JSON array of objects.
JSON to XML
Convert JSON into indented XML.
XML to JSON
Convert XML into structured JSON.
YAML to JSON
Convert YAML configuration into JSON.
JSON to YAML
Convert JSON into readable YAML.
HTML Formatter
Beautify and indent messy HTML markup.
CSS Formatter
Beautify and indent minified or messy CSS.
JavaScript Formatter
Beautify and indent JavaScript code.
SQL Formatter
Format and indent SQL queries with uppercase keywords.
XML Formatter
Beautify and indent XML documents.
Markdown Previewer
Write Markdown and see a live, sanitized HTML preview.
Markdown to HTML
Convert Markdown into clean, sanitized HTML.
HTML Entity Encoder and Decoder
Encode and decode HTML entities like & and <.
URL Parser
Break a URL into protocol, host, path, query and hash.
Query String Parser
Parse a URL query string into key–value pairs and JSON.
Regex Tester
Test regular expressions with live matches and highlighting.
Cron Expression Generator
Build cron expressions from presets or fields with a plain-English preview.
Cron Expression Parser
Validate a cron expression and explain it in plain English.
UUID Validator
Check whether a string is a valid UUID and its version.
IP Address Validator
Validate IPv4/IPv6 addresses and see their type.
MIME Type Lookup
Find the MIME type for a file extension, or search by type.
CSS Gradient Generator
Design linear and radial CSS gradients with a live preview and copy the code.
CSS Box Shadow Generator
Craft CSS box-shadows with offset, blur, spread, colour and inset — live preview.
CSS Flexbox Generator
Visually set flex-direction, justify, align, wrap and gap and copy the CSS.
CSS Grid Generator
Generate a CSS grid with columns, rows and gap and copy the code.
CSS Border Radius Generator
Set each corner radius independently and copy the CSS, with a live preview.
CSS Triangle Generator
Generate a pure-CSS triangle in any direction, size and colour.
CSS Glassmorphism Generator
Create a frosted-glass (glassmorphism) effect with blur, tint and transparency.
User Agent Parser
Break a user-agent string into browser, engine, OS and device.
Git Command Generator
Build common Git commands from a task and a few inputs.
Docker Command Helper
Generate common Docker commands from a task and inputs.
HTML Minifier
Shrink HTML by removing comments and unnecessary whitespace.
CSS Minifier
Compress CSS by stripping comments and whitespace.
JavaScript Minifier
Reduce JavaScript size by removing comments and whitespace.
SQL to JSON Converter
Turn SQL INSERT statements into a JSON array of objects.
HTML to Markdown Converter
Convert HTML into clean Markdown for READMEs and docs.
BBCode to HTML Converter
Convert forum BBCode into HTML.
Markdown Table Generator
Turn CSV or tab-separated rows into a Markdown table.