Free PNG Compressor — Built for Web Assets
PNG files are perfect for logos, icons, UI screenshots, and graphics with sharp edges. They also get heavy fast: a 4K product mockup can be several megabytes. This page is a focused compress PNG tool so you can shrink PNG file size without hunting through a generic compressor.
Everything runs in your browser. Drop a PNG (or many), adjust quality if you re-encode to JPG/WebP, or keep PNG and optimize what the browser allows — then download. Ideal when you care about privacy and do not want TinyPNG-style uploads.
When Should You Compress PNG?
Website hero & UI assets
Large PNGs hurt LCP and Core Web Vitals. Compress before deploy.
Email & chat
Shrink screenshots so they send without bounce limits.
App stores & docs
Keep transparency for logos while cutting megabytes.
Batch design handoff
Compress a folder of exports in one pass before sharing with developers.
PNG Compression Tips That Actually Work
Keep PNG for logos. If you need a transparent background, stay on PNG or convert to WebP. JPG will fill transparency with white/black.
Photos should not stay PNG. Photographic PNGs are almost always oversized. Use Image to WebP or Image to JPG for 60–80% smaller files with little visual loss.
Dimensions first. A 4000px-wide icon is wasteful. Resize to display size, then compress.
Batch for catalogs. Product teams often export hundreds of PNGs. Use this tool’s multi-file mode instead of one-by-one uploads on other sites.
PNG vs JPG vs WebP (quick pick)
| Format | Best for | Size | Transparency |
|---|---|---|---|
| PNG | Logos, UI, text screenshots | Larger | Yes |
| JPG | Photos | Small | No |
| WebP | Modern web (photos + graphics) | Smallest | Yes |
FAQ
Can I compress a PNG without losing transparency?
Yes for many cases. Keep output as PNG when you need transparency. Converting to JPG removes transparency; WebP can keep it in modern browsers.
Why is my PNG still large after compression?
True lossless PNG is limited by pixel count and color complexity. For photos, switch output to WebP or JPG for much smaller files. For logos, try a lower quality only if you convert formats.
Is batch PNG compression supported?
Yes. Select multiple PNG files or drag a folder. Each file compresses independently with the same settings.
Do you upload my PNG files?
No. Compression runs locally with the Canvas API. Files never leave your device.
Related Tools
Image Compress
General JPG/PNG/WebP compressor with quality slider.
Batch Compress Images
Compress many images at once — drag a whole folder.
PNG to WebP
Often the biggest size win for web graphics.
PNG to JPG
Convert when transparency is not needed and JPG is smaller.
Related Guides
Guide to Image Compression
Learn lossy vs lossless and quality presets for PNG and JPG.
Optimize Images for Web Performance
Compression and format tips that improve Core Web Vitals.
Compress JPG Without Losing Quality
Photo-focused quality tips after you leave PNG.