How to Generate UUID v4 Online for Free
Learn how to generate random UUID v4 strings in bulk using a free browser-based tool. Cryptographically secure with one-click copy.
Jun 7, 2026
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Practical guides for browser-side tools, file workflows, privacy, SEO metadata, image optimization, PDF cleanup, and everyday web utilities.
How to Generate SHA-256 Hash Online
Learn how to generate SHA-256, SHA-384, SHA-512, and SHA-1 hashes from text using a free browser-based tool. Uses Web Crypto API for accuracy.
Jun 7, 2026
How to Decode JWT Tokens Online
Learn how to decode and inspect JWT tokens using a free browser-based tool. View header, payload, and expiration status without sending your token anywhere.
Jun 7, 2026
How to Encode and Decode URLs Online
Learn how to encode and decode URL components using a free browser-based tool. Handle special characters, Unicode, and query strings privately.
Jun 7, 2026
How to Generate Strong Passwords Online
Learn how to generate strong, random passwords using a free browser-based tool. Customize length, character sets, and copy securely.
Jun 7, 2026
How to Generate QR Codes Online for Free
Learn how to generate QR codes from text or URLs using a free browser-based tool. Download as PNG with no tracking or account required.
Jun 7, 2026
How to Encode and Decode Base64 Online
Learn how to encode text to Base64 and decode Base64 back to text using a free browser-based tool. Handles UTF-8 safely with one-click copy.
Jun 7, 2026
How to Format and Validate JSON Online
Learn how to format, validate, and minify JSON using a free browser-based tool. Get readable indentation and clear error messages instantly.
Jun 7, 2026
How to Flip Images Online for Free
Learn how to flip images horizontally or vertically using a free browser-based tool. Mirror images, preview results, and download as PNG.
Jun 7, 2026
How to Rotate Images Online for Free
Learn how to rotate images by 90, 180, or 270 degrees using a free browser-based tool. Fix orientation issues and download instantly.
Jun 7, 2026
How to Generate Favicons Online for Free
Learn how to generate a complete favicon pack from any image. Get ICO and PNG files in all standard sizes with a free browser-based tool.
Jun 7, 2026
How to Convert Image to Base64 Online
Learn how to convert images to Base64 data URIs for embedding in HTML, CSS, or JSON. Free browser-based tool with one-click copy.
Jun 7, 2026