Compress PNG Images Online for Free
Optimize PNG file size while maintaining transparency and sharp edges — all inside your browser.
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Your Privacy is Protected
- Your files are processed entirely in your browser
- No file upload — your video never leaves your device
- No account or registration required
- Files are not stored on any server
Lossless & Lossy PNG Compression
PNG images feature lossless compression and alpha-channel transparency, making them standard for UI graphics, app icons, and logos. However, unoptimized PNGs can be megabytes in size.
MediaConvertKit's in-browser PNG compressor reduces palette redundancy and optimizes color indexing while preserving transparent backgrounds with pixel perfection.
How to Use This Tool
- 1
Select your PNG image
Drag your PNG graphic or screenshot into the tool.
- 2
Choose compression strength
Choose between lossless optimization or higher compression.
- 3
Compress in browser
The Canvas API cleans and optimizes color palettes.
- 4
Download PNG
Save your lightweight, transparent PNG file.
Why MediaConvertKit is Faster & More Private
| Feature | MediaConvertKit | CloudConvert / Zamzar |
|---|---|---|
| File Processing | 100% In-Browser (Local) | Uploaded to Remote Server |
| Privacy & Confidentiality | Guaranteed Zero Exposure | Files Stored Temporarily |
| Upload & Download Wait | Zero (Direct RAM Access) | Minutes (Bandwidth Dependent) |
| Price & Daily Limits | 100% Free & Unlimited | Paid Credits / Queues |
Supported Formats
Input Formats
Output Format
Frequently Asked Questions
- Yes, all transparent pixels (alpha channel) are 100% preserved during the compression process.
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