Developer Tools
Free online Developer Tools, browser-based, no signup, no uploads.
JSON Formatter
Beautify and validate JSON.
JSON Minifier
Minify JSON locally.
JSON Validator
Validate JSON syntax.
JSON to CSV
Convert arrays of JSON objects to CSV.
CSV to JSON
Convert CSV data to JSON.
Base64 Encoder
Encode text to Base64.
Base64 Decoder
Decode Base64 strings.
URL Encoder
URL-encode text.
URL Decoder
Decode URL-encoded text.
HTML Encoder
Encode HTML entities.
HTML Decoder
Decode HTML entities.
JWT Decoder
Decode JWT header and payload locally.
Unix Timestamp Converter
Convert Unix timestamps and dates.
Regex Tester
Test regular expressions against text.
UUID Generator
Generate UUIDs in your browser.
Random Number Generator
Generate random numbers within a range.
HEX to RGB
Convert HEX colors to RGB.
RGB to HEX
Convert RGB colors to HEX.
Binary to Decimal
Convert binary numbers to decimal.
Hex to Decimal
Convert hexadecimal numbers to decimal.
Decimal to Binary
Convert decimal numbers to binary.
Text to Hex
Convert text to hexadecimal bytes.
Markdown Previewer
Preview Markdown as HTML locally.
SQL Formatter
Format SQL text for readability.
CSS Minifier
Minify CSS locally.
JavaScript Minifier
Minify JavaScript text locally.
HTML Minifier
Minify HTML locally.