Compress PNG files on Mac
PNG screenshots and graphics can be surprisingly large — a single Retina screenshot can be 5-10MB. Picmal optimizes PNG compression on your Mac to reduce file sizes by 20-50% without losing a single pixel of quality.
PNG screenshots and graphics can be surprisingly large — a single Retina screenshot can be 5-10MB. Picmal optimizes PNG compression on your Mac to reduce file sizes by 20-50% without losing a single pixel of quality.
Download and open Picmal on your Mac.
Drag and drop your PNG files or entire folders into Picmal.
Set your preferred quality level and click Compress to reduce file sizes.
| File type | Original | Compressed | Savings |
|---|---|---|---|
| Retina screenshot (2560×1440) | 5.8 MB | 3.2 MB | 45% smaller |
| Logo with transparency (800×200) | 480 KB | 240 KB | 50% smaller |
| UI design export (1920×1080) | 2.8 MB | 1.6 MB | 43% smaller |
| Icon set (256×256 each) | 95 KB | 52 KB | 45% smaller |
Technical docs and help guides include many screenshots. Lossless PNG compression reduces storage and bandwidth without affecting the crisp text rendering you need.
Logo files with transparency are often unoptimized. Compressing them saves bandwidth on every page load since logos appear site-wide.
Exports from Figma, Sketch, and Photoshop are rarely optimally compressed. Batch compress your design exports before uploading to your project.
If you take many screenshots for QA, bug reports, or reference, lossless compression reduces storage needs without any quality trade-off.
Something not covered here? Write to support@picmal.app
No. PNG compression in Picmal is lossless — the compressed file is pixel-identical to the original, just with a smaller file size through optimized encoding.
Typical PNG compression reduces file sizes by 20-50%. Screenshots with large areas of solid color compress especially well — some reduce by 60%+.
Yes. Picmal supports batch processing — drag and drop hundreds of PNG files or entire folders and compress them all at once.
If you need the smallest possible file and your use case supports WebP, converting is better (25-35% smaller). If you need PNG compatibility, compressing is the way to go. Picmal can do both.
Yes. PNG compression in Picmal preserves all transparency and alpha channel data. Your logos and graphics with transparent backgrounds stay exactly the same.
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