How do I compress a PNG file?

Drop the PNG onto the compressor above, keep Balanced or pick another level, and click Compress. Download the smaller PNG when it's done; it usually takes a few seconds.

Does compressing PNG reduce quality?

On Light it's lossless or near-lossless. Balanced and Strong trade a little fidelity for a much smaller file, usually without visible difference on Balanced.

How much smaller will my PNG get?

Screenshots, UI graphics and illustrations often shrink by half or more once the palette is reduced. Photos stored as PNG shrink less, so converting them to JPG or WebP is far more effective.

Can I compress PNG to a specific size?

Yes. Set a target size in the compressor, or a percentage to reduce by, and the file is compressed to land at or just under it. Common sizes like 20 KB, 50 KB, 100 KB or 200 KB are listed on this page with the target preset.

Is it safe to compress PNG files here?

Yes. PNG files are compressed inside your browser with WebAssembly and never uploaded to a server.

Is the PNG compressor free?

Yes. Compression is free with no watermark and no sign-up, within the same daily allowance as conversions.

PNG→smaller PNG→JPG JPG→smaller PNG→WebP MP4→smaller PNG→JPEG MP3→smaller PNG→PDF PDF→smaller PNG→GIF WebP→smaller PNG→AVIF HEIC→smaller PNG→SVG DOCX→smaller PNG→ICO GIF→smaller PNG→TIFF SVG→smaller PNG→BMP MOV→smaller PNG→PSD AVIF→smaller PNG→EPS M4A→smaller PNG→JXL PNG→TGA WebM→smaller PNG→DDS PNG→EXR MKV→smaller PNG→HDR PNG→JP2 XLSX→smaller PNG→CUR PNG→PPM EPUB→smaller PNG→QOI PNG→PCX AVI→smaller PNG→PGM PNG→PBM FLAC→smaller JPG→PNG JPG→WebP PPTX→smaller WebP→PNG WebP→JPG AAC→smaller HEIC→PNG HEIC→JPG ZIP→smaller MP4→MP3 JPG→JPEG TIFF→smaller JPEG→PNG JPEG→JPG OGG→smaller JPG→PDF PDF→PNG Opus→smaller PDF→JPG HEIC→WebP 7Z→smaller MP4→WebP PDF→DOCX ODT→smaller DOCX→PDF JPEG→WebP TAR.GZ→smaller WebP→JPEG JPG→GIF ODS→smaller GIF→PNG GIF→JPG ODP→smaller MP4→MOV MOV→MP4 TAR.BZ2→smaller WebP→PDF HEIC→JPEG TAR.XZ→smaller WebP→GIF GIF→WebP HEIC→PDF MP3→WAV WAV→MP3 JPEG→PDF PDF→JPEG SVG→PNG SVG→JPG HEIC→GIF MOV→MP3 MP4→GIF GIF→MP4 JPEG→GIF GIF→JPEG JPG→AVIF AVIF→PNG AVIF→JPG MP3→M4A M4A→MP3 GIF→PDF SVG→PDF JPG→SVG PDF→SVG SVG→WebP MOV→WebP MP4→WAV MP4→WebM WebM→MP4 WebP→AVIF AVIF→WebP WebP→SVG SVG→JPEG MP4→MKV MKV→MP4 HEIC→AVIF MP4→M4A JPEG→AVIF AVIF→JPEG JPEG→SVG MOV→GIF GIF→MOV WebM→MP3 AVIF→PDF MP3→FLAC FLAC→MP3 MP4→AVI AVI→MP4 MKV→MP3 GIF→AVIF AVIF→GIF SVG→GIF GIF→SVG WebM→WebP MOV→WAV XLSX→PDF CSV→PDF EPUB→PDF PDF→EPUB MOV→WebM WebM→MOV MKV→WebP JPG→ICO ICO→PNG ICO→JPG MP3→AAC WAV→M4A AAC→MP3 M4A→WAV MP4→FLAC AVI→MP3 MOV→MKV MKV→MOV MOV→M4A DOCX→EPUB EPUB→DOCX CSV→DOCX PDF→TXT

Compress PNG

Q: Should I convert my PNG instead?

Sometimes. For photos without transparency, JPG is many times smaller than even a well-compressed PNG. The PNG to JPG converter does that in one step.

Make PNG files smaller without visible quality loss. Free, and your files never leave your browser.

Runs in your browser
Same format, smaller file
Batch & ZIP download

How to compress PNG

1
Add your PNG files
Drag and drop PNG files onto the compressor, paste them, or click to browse. You can add several at once.
2
Pick a level or a target
Balanced is selected and suits most files. Choose Light to stay closer to the original or Strong for the smallest file, or set a target size or a percentage to reduce by.
3
Compress
Click Compress. Your PNG files are processed right in your browser, usually in seconds.
4
Download
Download each smaller PNG, or everything at once as a ZIP.

What compression does to PNG

Lossless or lossyIn your browser

Reduces the colour palette (lossy levels) and re-compresses at maximum zlib effort.

Light: Lossless or near-lossless: re-compresses as efficiently as possible at full resolution.
BalancedDefault: The default: looks the same for most uses, and typically 40–70% smaller.
Strong: Smallest file: lower quality, and large images are downscaled.

Need it much smaller? For photos without transparency, JPG is many times smaller than even a well-compressed PNG. Convert PNG to JPG

Common sizes

The compressor above takes any target size, or a percentage to reduce by. These pages preset the sizes people ask for most, for upload forms, email and chat limits.

PNG · Portable Network Graphics

PNG is a lossless raster format that keeps every pixel exactly as it was and supports full alpha transparency.

Type: Image
Extension: .png
MIME: image/png
Best for: screenshots, logos, UI assets and any graphic that needs sharp edges or a transparent background

LosslessTransparencyOpen standard

All PNG conversions →

Compress other images

All images →

Compressing PNG: frequently asked questions

Free, private and in your browser

Smaller PNG files, in seconds.

No sign-up, no watermark, no upload. Drop a file and get it back lighter.

Compress a file All compress tools

Most conversions never leave your device
Cloud files deleted automatically
No watermarks