Compress JPEG/PNG images using mozjpeg or jpegli offline
About this app
A minimalist and optinionated Android app for offline/on-device JPEG/PNG compression.
Features: - Browse and select image folders - 3 built-in quality levels for MozJPEG and Jpegli - "Smart" filter to skip well-compressed images - Preview estimated savings before applying compression
Options: - EXIF metadata preservation - PNG to JPEG conversion
Encoders: - mozjpeg: Mozilla's optimized JPEG encoder - jpegli: Google's high-quality JPEG encoder from libjxl
This app requires no internet access and processes all images locally on your device.
Licensed under MIT, by ahxxm.
What's New in v5.0
Imported from the F-Droid repository index.
Version history
Mar 10, 2026 · 8.9 MB · Android API 30–36 · code 54
Imported from the F-Droid repository index.
SHA-256 551a678846c6f925ef0b111aa39517de3d73955fdf33743c1642f755e66c0f3b
Mar 10, 2026 · 8.2 MB · Android API 30–36 · code 53
Imported from the F-Droid repository index.
SHA-256 8382e02f692ec355b4d9df78edce3d4f0e1ced760b89f4fe1ec03fe6d4a317cb
Mar 10, 2026 · 7.4 MB · Android API 30–36 · code 52
Imported from the F-Droid repository index.
SHA-256 23767b227a1d9e1b6305b9189b1c03effd42f5581fe09d835f8e2319be7906fb
Will it run on your device?
74%
- Targets newer Android builds, so legacy devices may be excluded.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be io.ahxxm.ic is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 5.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Image Compressor first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Image Compressor, and a listing is removed when the evidence for it stops holding up.
Get Image Compressor
Every source we list for io.ahxxm.ic is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
551a678846c6f925ef0b111aa39517de3d73955fdf33743c1642f755e66c0f3b
Signing certificate
1a6594a3a0239ce50a1b8062f957835418867169e816507934cfd482fdd6a3f7
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.