Why not just use the built-in tools?

Android galleries vary by brand and rarely offer precise size or format control without installing an app. A browser-based tool gives you precise control and works the same on every device.

Steps on Android

  1. Open this page in any browser on your Android and tap the tool below.
  2. Select or drag in your image — it is processed locally, never uploaded.
  3. Adjust the settings, then save the result back to your Android.

Tips

  • Works in Safari, Chrome and Edge — no app store download needed.
  • Because it runs offline in the browser, it is safe for private photos and documents.