skwish

private

browser-based

Optimize images for mobile apps and ship leaner builds

Every image in your mobile app — from the launch screen to in-app galleries — adds weight to your build. Skwish optimizes PNG, JPG, and WebP assets locally in your browser with no uploads or sign-up. Drop your app images, adjust quality per asset, and download optimized files ready for your next build.

Search match

This page is tuned for optimize images for mobile apps so visitors land in the right workflow immediately.

Fast output

See original size, compressed size, and percentage saved before you move on.

Batch ready

Compress multiple files and pull the results down as a ZIP.

Get to the compressor fast

Exact-intent SEO page first. Clear next step. Pretty later.

People usually search for a specific task, not a brand story. So this page keeps the promise simple: compress images without sending them to a third-party server.

Built for people searching “optimize images for mobile apps”, not a generic landing page.

No uploads, no accounts, no waiting on a server.

See the savings before you download anything.

Batch export stays available when the job is bigger.

Best for this search

Optimize all image assets for a cross-platform Flutter app before building — reduce both the APK and IPA size with a single batch compression session.

Shrink in-app tutorial and onboarding screenshots for a React Native app so first-time users download less data on cellular connections.

Batch-optimize a full set of product images for a mobile marketplace app and export them as a ZIP with consistent quality settings across all density variants.

Compress images now

Opens the upload box on the free browser compressor.

Drop images in the browser

Keep the whole workflow local. Nothing leaves your device unless you download it.

Set the output you need

Adjust compression until the file size and quality fit the job instead of guessing.

Download a clean result

Save one file or a ZIP bundle with skwish-prefixed names so the output is easy to find.

Mobile app image optimization tips

Use these before you upload or share the page.

Run a single batch compression session for all your app's image assets — Skwish's ZIP export keeps every file organized with a skwish prefix so you can track which are optimized.

For cross-platform apps (Flutter, React Native, Xamarin), use JPEG at 80% for photo content and WebP for illustrations — both formats work on iOS and Android.

Always resize images to the maximum display resolution your app needs before compressing — a 1080px-wide image at 80% quality is often indistinguishable from a 4K original at a fraction of the size.

Ready to compress images?

Open the free browser upload box, keep files local, and download the optimized result.

Compress images now

Related tools

Other compression pages built for specific size limits and formats.