5/20/2026 Naman Soni 5 min read

How to Edit Photos Privately in Your Browser

Did you know most online editors upload your photos to their servers? Learn why local-processing editors like Onyx are safer.

ONYX

The Hidden Risk of Online Editors

When you use a typical "free online image editor," the first thing that happens is an upload. Your personal photo—whether it's a family memory, a document, or a creative project—is sent to a remote server.

Once on the server, your image might be:

  • Stored indefinitely.
  • Used to train AI models.
  • Exposed in a data breach.

The Solution: Client-Side Processing

Modern web technologies like WebAssembly and Canvas API allow browsers to perform heavy image manipulation without ever sending data to the cloud.

Why Onyx is Different

Onyx is built with a "Privacy First" architecture. When you open an image in Onyx:

  1. The file is read by your browser's local memory.
  2. All edits (crop, filter, resize) happen on your CPU/GPU.
  3. When you save, the browser generates the file locally.

At no point does your image data travel over the internet. You could even disconnect your Wi-Fi after loading the page, and Onyx would still work perfectly.

Conclusion

Privacy shouldn't be a luxury. By choosing client-side tools like Onyx, you ensure that your personal data remains truly personal.

Start Creating Now

Put these tips into practice with our free online editor.

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