Free Tool Guides & Tutorials — Learn to Use Online Tools Like a Pro
In-depth tutorials to help you get more from your tools.
How to Compress Images for the Web — The Complete Guide
Learn how to reduce image file sizes without losing quality. Covers JPEG, PNG, WebP, and AVIF compression techniques for faster websites.
June 2026·5 min read
How to Format and Validate JSON — A Developer's Guide
Master JSON formatting, validation, and debugging. Learn how to read nested JSON, spot common errors, and format data for APIs and configs.
June 2026·6 min read
Base64 Encoding Explained — When and How to Use It
Understand what Base64 encoding is, why it exists, and when you should (and shouldn't) use it. Covers images, data URIs, and API authentication.
June 2026·5 min read