IMAGE COMPRESSOR SUITE
Compress JPEG, PNG, and WebP images locally with exact Target File Size (KB/MB) matching, vertical split preview slider, single or bulk batch processing.
Key Features & Capabilities
- Batch lossless compression across 50+ images
- 0% visual quality loss — strips metadata & optimizes tables
- 1-Click Download All as formatted .ZIP archive
- 100% private WebAssembly processing
How to Batch Compress Images Losslessly
Step 1: Upload Batch of Photos
Select multiple images from your computer.
Step 2: Set Lossless Constraints
Optionally set Target KB constraints.
Step 3: Download ZIP
Download optimized lossless images in a single ZIP file.
Frequently Asked Questions
Will bulk lossless compression change my photo quality?
No. Lossless compression removes redundant bytes and metadata without altering pixels.
Related Utility Tools
Why Zaeyon?
Private, free, and browser-based — no account, no uploads, no compromises.
Zero Uploads
Your files never leave your device. All processing happens locally in your browser memory — nothing is sent to any server.
100% Free Forever
No subscriptions, no hidden fees, no daily limits. Every tool on Zaeyon is permanently free to use without an account.
Instant & Powerful
Powered by WebAssembly — the same low-level technology used in native apps — so processing is fast even for large files.
Works Offline
Once the page loads, the WebAssembly engine runs entirely on your device. No internet connection needed to process files.
Works Everywhere
No software installation required. Runs directly in your browser on Windows, Mac, Linux, iOS, and Android.