Developer Tools
JSON formatter, Base64 encode/decode, hash generators, and more.
Image to Base64
Convert images to Base64 encoded strings online for free. Perfect for embedding images directly in HTML, CSS, or JavaScript.
Base64 to Image
Convert Base64 encoded strings back to images online for free. Decode and download your images instantly.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 strings online for free. Convert text and data to Base64 format instantly in your browser.
URL Encode / Decode
URL-encode or decode strings online for free. Properly encode special characters for use in URLs and query parameters.
Slug Generator
Generate URL-friendly slugs from text online for free. Convert any text into clean, SEO-optimized URL slugs instantly.
JSON Formatter
Format and validate JSON online for free. Pretty-print, minify, and validate JSON data instantly in your browser.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes online for free. Hash text strings using the Web Crypto API in your browser.
Password Generator
Generate strong, secure passwords online for free. Customize length, uppercase, lowercase, numbers, and symbols to create unbreakable passwords.
UUID Generator
Generate UUID v4 (random) identifiers online for free. Create one or more UUIDs instantly for use in databases, APIs, and development.
HTML Previewer
Preview HTML code live online for free. Write HTML on the left and see the rendered result on the right in real time.
Regex Tester
Test regular expressions online for free. Write regex patterns, toggle flags, and see matches highlighted in real time.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa online for free. Supports seconds and milliseconds epoch formats.
Number Base Converter
Convert numbers between different bases online for free. Supports binary, octal, decimal, hexadecimal, and base-36 conversion.
CSS Unit Converter
Convert between CSS units (px, rem, em, %) online for free. Calculate responsive typography and layout values instantly.
JWT Decoder
Decode JWT tokens online for free. View the header and payload of any JSON Web Token in a readable format. No server-side verification.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text online for free. Customize the number of paragraphs and words per paragraph for your designs.
Color Converter
Convert colors between HEX, RGB, and HSL formats online for free. Preview colors visually with real-time conversion and shade previews.