DevToolbox
A comprehensive collection of developer tools. All processing happens in your browser — your data never leaves your device.
JSON Formatter
Developer ToolsFormat, validate, and beautify JSON data.
XML Formatter
Developer ToolsFormat and beautify XML data.
CSS Formatter
Developer ToolsBeautify and format CSS code.
Base64 Encoder/Decoder
Developer ToolsEncode and decode text to and from Base64.
URL Encoder/Decoder
Developer ToolsEncode or decode strings for use in URLs.
URL Parser
Developer ToolsParse a URL into its components (protocol, host, path, etc.).
Hash Generator
Developer ToolsGenerate MD5, SHA1, SHA256, SHA512 hashes.
HMAC Generator
Developer ToolsGenerate a keyed-hash message authentication code (HMAC).
Bcrypt Generator
Developer ToolsHash and verify passwords with Bcrypt.
Checksum Calculator
Developer ToolsCalculate checksums like CRC32 for text.
JWT Decoder
Developer ToolsDecode and inspect JSON Web Tokens.
JWT Creator
Developer ToolsCreate new JSON Web Tokens from scratch.
UUID Generator
Developer ToolsGenerate universally unique identifiers (UUIDs).
Regex Tester
Developer ToolsTest regular expressions against strings.
HTML Encoder/Decoder
Developer ToolsConvert special characters to and from HTML entities.
HTML to Markdown
Developer ToolsConvert HTML content to Markdown.
HTML Stripper
Developer ToolsRemove HTML tags from a string.
HTML Minifier
Developer ToolsMinify HTML code to reduce file size.
CSS Minifier
Developer ToolsMinify CSS code to reduce file size.
JavaScript Minifier
Developer ToolsMinify JavaScript code using Terser.
SQL Formatter
Developer ToolsBeautify and format SQL queries.
Cron Job Parser
Developer ToolsParse a cron string into a human-readable format.
Epoch Time Converter
Developer ToolsConvert between Unix timestamps and human-readable dates.
CSS Unit Converter
Developer ToolsConvert between px, em, rem, and pt.
Color Converter
Developer ToolsConvert between HEX, RGB, HSL, HWB, and CMYK.
Chmod Calculator
Developer ToolsCalculate Linux file permissions visually.
MIME Type Lookup
Developer ToolsFind the MIME type for a file extension.
Gzip Compressor
Developer ToolsCompress and decompress text using Gzip.
Screen Information
Developer ToolsDisplay screen resolution, color depth, etc.
User Agent Parser
Developer ToolsDisplay information from your browser user agent.
Keyboard Event Tester
Developer ToolsInspect properties of keyboard events.
Image Compressor
File ToolsCompress JPG/PNG images to reduce file size.
Image Resizer
File ToolsResize images to your desired dimensions.
Image Converter
File ToolsConvert images between PNG, JPEG, and WEBP.
ICO Converter
File ToolsCreate a favicon.ico from an image file.
Image Color Palette Extractor
File ToolsExtract a color palette from an image.
PDF Merger/Splitter
File ToolsMerge multiple PDFs into one or split a PDF into parts.
CSV <=> JSON Converter
File ToolsConvert between CSV and JSON formats.
Image to Base64
File ToolsConvert an image file to a Base64 string.
Base64 to File
File ToolsDecode a Base64 string into a downloadable file.
Binary Viewer
File ToolsView the binary content of a file.
JSON <=> YAML Converter
File ToolsConvert data between JSON and YAML formats.
JSON <=> XML Converter
File ToolsConvert data between JSON and XML formats.
SVG to PNG / JPEG
File ToolsConvert SVG code or files to PNG or JPEG.
SVG to CSS
File ToolsConvert SVG to a CSS background-image.
Audio Spectrum Analyzer
File ToolsVisualize the frequency spectrum of an audio file.
QR Code Generator
MiscellaneousCreate QR codes from text or URLs.
Markdown Previewer
MiscellaneousWrite Markdown and see a live preview.
Color Tools
MiscellaneousColor picker, gradient generator, and converters.
Password Generator
MiscellaneousGenerate strong, secure passwords.