PNG Image Compressor

Reduce PNG file size in your browser — lossless compression, files never leave your device.

Drop images here or click to select

JPG, PNG, WebP, GIF, BMP, AVIF, TIFF — multiple files supported

How to compress PNG images

  1. Drop your PNG or other image files onto the compressor above — or click to browse.
  2. Click Compress on a single file or Compress all to process everything in one go.
  3. Download files individually or click Download all for a ZIP archive of all compressed PNGs.
  4. Tip: if you need even smaller files, try the WebP compressor — WebP achieves 25–35% smaller sizes than PNG with the same visual quality.

What is PNG compression and how does it work?

PNG uses lossless compression — every pixel is preserved exactly as in the original. Unlike JPG, no image data is discarded. This makes PNG the right choice for graphics, logos, screenshots, and images with sharp edges or transparency.

What this tool does

The browser re-encodes your image as PNG using the Canvas API. This strips embedded metadata (EXIF, color profiles, comments) and re-renders the image, which can reduce file size — especially for PNGs that carry large metadata payloads or were exported from design tools with verbose headers.

When PNG is the right format

  • Logos and icons — sharp edges stay crisp, no JPG artifacts
  • Screenshots and UI mockups — text and UI elements render cleanly
  • Images with transparency — PNG supports alpha channels, JPG does not
  • Source files for editing — lossless means no quality degradation when re-saving

Want smaller files? Consider WebP

WebP achieves 25–35% smaller file sizes than PNG while maintaining the same visual quality, and also supports transparency. If your target browsers support WebP (all modern browsers do), it is worth switching.

Frequently Asked Questions

Are my files uploaded to a server?
No. All compression happens directly in your browser using the Canvas API. Your files never leave your device — no uploads, no server processing, 100% private.
Can I compress multiple files at once?
Yes. Drop as many files as you need and click "Compress all" to process everything at once. Click "Download all" to get a single ZIP archive with all compressed files.
Is PNG compression lossless?
Yes. PNG always uses lossless compression — no pixel data is discarded. This tool re-encodes the image as PNG via the browser Canvas API, which can reduce file size by stripping metadata while keeping every pixel intact.
Why is my compressed PNG the same size or larger?
PNG lossless compression has limits. If your original PNG was already well-optimized, re-encoding may not reduce the size further. In that case, consider converting to WebP for significant size savings while keeping visual quality.
Does PNG support transparency?
Yes — PNG fully supports alpha channel transparency. JPG does not. If your image has transparent areas, keep it as PNG or convert to WebP (which also supports transparency).
What image formats can I compress to PNG?
You can drop any image — JPG, PNG, WebP, GIF, BMP, AVIF, TIFF — and it will be re-encoded as a compressed PNG. Transparent areas in the source are preserved.
How much smaller will my PNG get?
It depends on the source file. PNGs from design tools (Figma, Photoshop) often contain large metadata chunks that can be stripped for 10–40% size savings. Already-optimized PNGs may see little to no reduction.
When should I use PNG vs JPG vs WebP?
Use PNG for logos, icons, and images with transparency. Use JPG for photographs where some quality loss is acceptable. Use WebP for the best balance — smaller than both PNG and JPG, supports transparency, and is supported by all modern browsers.
Can I preview the compressed PNG before downloading?
Yes. After compression, a thumbnail appears in the Preview column. Click it to open the image fullscreen and inspect the result before downloading.