Compress PNG images — free, private, no upload
Compress PNG images for free, right in your browser — your files are never uploaded to a server. Drop in one image or a whole batch, and each is re-encoded with a professional-grade codec that shows the exact before/after size. Download them individually or as a ZIP. No account, no watermark, and it works offline once the page has loaded.
Re-encoded with PNG optimizer in your browser. You see exact before/after sizes on every file.
About compressing PNG
PNG is a lossless format with full alpha transparency, designed in 1996 as the patent-free successor to GIF. It compresses flat colors, text and sharp edges perfectly, which makes it the standard for screenshots, logos, icons and UI graphics. The trade-off is size: a photo saved as PNG is often 5–10× larger than the same photo as JPEG. EditItAll optimizes PNGs losslessly, and can optionally reduce the color palette for much bigger savings.
How to compress PNG
- 1Drop PNG files above — batches are fine, and nothing is uploaded.
- 2Compression is lossless by default. Optionally lower quality below 70 for palette-based lossy savings, or cap the max dimension to downscale.
- 3Watch each file’s size drop, then download individually or as a ZIP.
PNG strengths & limitations
Strengths
- Pixel-perfect lossless compression
- Full 8-bit alpha transparency
- Ideal for text, screenshots, logos and flat design
Limitations
- Very large files for photographs
- No animation support
- No native HDR or wide-gamut signaling in practice
Frequently asked questions
How does PNG compression work here?+
Two stages: a lossless optimizer restructures filters and compression streams (every pixel identical, typically 10–40% smaller). If you lower quality below 70, EditItAll additionally reduces the color palette (like TinyPNG does) for savings up to 70–90% on screenshots and graphics.
What quality setting should I use for PNG?+
PNG compression here is lossless by default — there is no quality trade-off. The slider only matters if you drop below 70, which enables lossy palette reduction.
Is there a limit on file size or number of images?+
No hard limits: processing runs on your own device, so the only constraint is your browser’s memory for truly gigantic images. Batch as many files as you want.
Will compressing PNG remove metadata?+
Yes. Output files are built from raw pixels, so EXIF data — GPS location, camera model, timestamps — is stripped. Orientation is baked into the pixels first so photos stay upright. This usually saves a few extra kilobytes too.
Are my images uploaded anywhere?+
No. The codecs run inside your browser; the page works offline once loaded. Files, previews and results all live in your device’s memory only.
Want the full walkthrough? How do I compress a PNG file without losing quality?