How do I compress a PNG to 1 MB?

Drop the PNG onto the compressor above. The 1 MB target is already set, so just click Compress and download the result.

Will the file be exactly 1 MB?

It aims to land at or just under 1 MB. 1 MB here means 1,000,000 bytes, so it also fits sites that count 1 MB as 1,048,576 bytes.

How much quality will I lose at 1 MB?

1 MB is comfortable: photos stay sharp at screen sizes, and only very high-resolution originals get a mild downscale. PNG keeps logos and screenshots crisp at 1 MB, but photos have to be scaled down a long way. For photos, converting PNG to JPG reaches 1 MB at a much higher resolution.

My PNG is already smaller than 1 MB. What now?

Then it already fits, and compressing it further would only cost quality. Upload it as it is, or pick a smaller target if you need it smaller still.

What if my PNG can't get down to 1 MB?

Very large or detailed images are scaled down further to reach 1 MB. If the result is too small, pick a larger target.

What is 1 MB typically needed for?

Common reasons: attaching several photos to one email; websites and portals that cap uploads at 1 MB; sharing high-quality photos quickly. Limits vary by site, so check the exact number where you're uploading.

Yes. It's compressed inside your browser and never uploaded.

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 to 1 MB

Shrink a PNG to 1 MB or less for email attachments and portals with a 1 MB limit. Free, and nothing is uploaded.

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

How to compress a PNG to 1 MB

1
Add your PNG
Drop one or more PNG files onto the compressor above, paste them, or click to browse.
2
1 MB is preset
The target is already set to 1 MB, and each file is compressed to land at or just under it. You can switch to another size or a percentage to reduce by.
3
Compress
Click Compress. The PNG is processed in your browser; nothing is uploaded.
4
Check and download
Check the new size, then download each file or all of them as a ZIP.

What fits in 1 MB

PNG is lossless at heart, so what fits in 1 MB depends heavily on the content.

Content	Roughly fits	Notes
Logo or flat graphic	≈ 3,650 × 3,650 px (13 MP)	Few colours compress very well
Screenshot	≈ 2,830 × 1,770 px (5 MP)	After palette reduction
Photo	≈ 1,550 × 1,030 px	Convert to JPG for far more

Rough guide for square, 16:10 and 3:2 images. Real results depend on detail and colour count.

What 1 MB is typically for

Attaching several photos to one email
Websites and portals that cap uploads at 1 MB
Sharing high-quality photos quickly

Limits vary by site and change over time; check the exact number where you're uploading.

How PNG gets smaller

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

Compress PNG by quality level instead →

Neighbouring sizes

Or compress PNG by level and set any size or percentage yourself.

Got a mix of formats? Compress any image to 1 MB.

Compress other images

All images →

PNG to 1 MB: frequently asked questions

Free, private and in your browser

PNG to 1 MB, done.

Drop the file, keep the preset, download the result. No sign-up, no watermark.

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Most conversions never leave your device
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