Developer & Coding
Base64 Text Encoder/Decoder
Encode plain text to Base64, or decode Base64 back into readable text.
URL Encoder/Decoder
Safely encode or decode URLs and query string parameters.
HTML Entity Encoder/Decoder
Convert special characters to safe HTML entities, and back again.
JSON Validator
Validate JSON syntax and get a precise line and column number for any error.
JSON Minifier
Compress bloated JSON by stripping out all unnecessary whitespace.
Code Beautifier
Reformat minified or messy JSON, CSS or HTML into clean, indented code.
HTML/CSS/JS Minifier
Strip whitespace, comments and line breaks from HTML, CSS or JavaScript.
RegEx Live Tester
Test regular expressions against sample text with live match highlighting.
Epoch/Unix Timestamp Converter
Translate Unix timestamps to readable dates, and readable dates back to timestamps.
CSV ⇄ JSON Converter
Convert CSV tables into JSON arrays, or JSON arrays back into CSV.
XML ⇄ JSON Converter
Transform nested XML structures into JSON, or JSON into valid XML.
Markdown Live Editor
Write Markdown and preview the rendered HTML output side by side.
HTML to Markdown
Convert HTML markup back into clean, readable Markdown syntax.
CSS to Tailwind Converter
Translate plain CSS rules into their equivalent Tailwind utility classes.
User-Agent Parser
Break down any user-agent string into browser, OS and device details.
JSON Tree Viewer
Explore deeply nested JSON as a clickable, collapsible tree.
Crontab Generator
Build valid cron expressions with a simple visual interval picker.
SQL Query Formatter
Reformat tangled SQL queries into clean, uppercase, indented statements.
HTML Table Builder
Design a table visually and export clean, production-ready HTML markup.
JSON to TypeScript
Convert a JSON object into matching TypeScript interface definitions.
RegEx Cheat Sheet
Browse a searchable index of common regular expression patterns.
Mock JWT Generator
Build sample JSON Web Tokens with custom claims for local sandbox testing.
QR Code Suite
Generate customizable, colored QR codes with an optional logo, and scan codes via camera.
Barcode Generator
Create standard EAN-13 and Code 128 barcodes from any numeric or text input.
JSON Diff / Compare Tool
Compare two JSON payloads side by side with added, removed and changed keys clearly highlighted.