Free Online Tools for Web Developers

JSON Formatter

Format, beautify, and validate JSON data online for free. Instantly prettify minified JSON with syntax highlighting and error detection. No signup required.

Base64 Encoder / Decoder

Encode text and files to Base64 or decode Base64 strings online for free. Essential tool for APIs, data URIs, and embedded content. No signup required.

URL Encoder / Decoder

Encode and decode URLs and query parameters online for free. Handle special characters, Unicode, and percent-encoding instantly. No signup required.

UUID Generator

Generate random UUID v4 identifiers online for free. Create single or bulk UUIDs for databases, APIs, and application development. No signup required.

JWT Decoder

Decode and inspect JWT tokens online for free. View header, payload, and signature claims with expiration validation. No signup required.

Regex Tester

Test and debug regular expressions online for free with real-time matching and group extraction. Supports JavaScript regex syntax. No signup required.

HTML Minifier

Minify HTML code online for free. Remove whitespace, comments, and unnecessary attributes to reduce file size and improve page load speed. No signup required.

CSS Minifier

Minify CSS stylesheets online for free. Remove whitespace, comments, and redundant rules to optimize your CSS for production. No signup required.

JavaScript Minifier

Minify JavaScript code online for free. Remove whitespace, comments, and shorten variable names to optimize your scripts for production. No signup required.

JSON ↔ CSV Converter

Convert between JSON and CSV formats online for free. Custom delimiters, auto-detection, and nested objects. No signup required.

XML ↔ JSON Converter

Convert between XML and JSON formats online for free. Parse XML to JSON or generate XML from JSON data. No signup required.

YAML ↔ JSON Converter

Convert between YAML and JSON formats online for free. Parse YAML configs to JSON or generate YAML from JSON. No signup required.

CSV Viewer

View, search, and analyze CSV files online for free. Get a sortable, filterable table with statistics. No signup required.

Base64 Image Encode / Decode

Encode images to Base64 or decode Base64 to images online for free. Generate data URIs for HTML and CSS. No signup required.

Color Palette Generator

Generate beautiful color palettes and schemes online for free. Create harmonious color combinations for design, web development, and branding. No signup required.

Gradient Generator

Create beautiful CSS gradients online for free. Design linear and radial gradients with a visual editor and copy the CSS code instantly. No signup required.

CSS Box Shadow Generator

Design CSS box shadows visually online for free. Adjust offset, blur, spread, and color to create the perfect shadow effect. No signup required.

Slug Generator

Generate clean, SEO-friendly URL slugs from any text online for free. Perfect for blog posts, product pages, and web content. No signup required.

Password Generator

Generate strong, random passwords online for free. Customize length, character types, and security level for maximum protection. No signup required.

SHA-256 Hash Generator

Generate SHA-256 cryptographic hashes from text or files online for free. Industry-standard hashing for security and data integrity. No signup required.