skwish

private

browser-based

Compress images for iOS app and keep your IPA lean

iOS app assets — launch screens, app icons, in-app images, and onboarding illustrations — can balloon your IPA file size. Skwish compresses every image locally in your browser with no uploads or sign-up. Drop your assets, adjust quality per image, and download optimized files ready to import into Xcode.

Search match

This page is tuned for compress images for iOS app 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 “compress images for iOS app”, 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

Compress all PNG assets for a SwiftUI app before archiving — reduce IPA size without losing the sharpness Apple's Human Interface Guidelines demand.

Optimize App Store screenshots and preview assets so your app listing page loads fast on the App Store without Apple rejecting oversized media.

Batch-compress a full set of in-app illustration assets for a UIKit app and download them as a single ZIP with consistent quality settings.

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.

iOS app image optimization tips

Use these before you upload or share the page.

Xcode's built-in PNG compression (optimization level 3 in Build Settings) works best when you pre-compress your PNGs — Skwish removes metadata and reduces color depth before Xcode gets them.

Use JPEG at 80-85% quality for photo-heavy in-app content like profile pictures or product images; reserve PNG for icons, logos, and UI elements with transparency.

Match asset dimensions to the @1x, @2x, and @3x naming convention — resize to the exact display size before compressing so Xcode doesn't upscale a compressed image.

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.