Mobile Compression Tools

Compress individual assets extracted from an APK (icons, images, XML layouts, JSON files) and show size savings per asset. Free online APK asset compressor, no signup required.

Compress and resize images to @1x, @2x, and @3x React Native asset densities and download as ZIP. Free online React Native asset compressor, no signup required.

Compress and package images into Flutter asset density variants (1x, 2x, 3x) with the correct directory structure and pubspec.yaml snippet output. Free online Flutter asset compressor, no signup required.

Calculate PWA precache size from a URL list and show which assets should be excluded to meet your cache budget. Free online PWA cache budget calculator, no signup required.

Compress all web assets (HTML, CSS, JS, JSON-LD, SVGs, base64 images) as a bundle optimized for 3G mobile network delivery — shows per-asset savings and estimated load time improvement. Free online mobile web performance compressor.

Compress images to fit iOS app upload limits — App Store (4 MB), iMessage (5 MB), Mail (20 MB), or custom 1–2 MB limits. HEIC-aware with fallback JPEG guidance. Free online compress image for iOS upload tool, no signup required.