Compress PNG to 50KB
Compress PNG to 50KB online free for passport and profile photos. Shrinks by reducing pixels and keeps transparency, in your browser: nothing is uploaded.
Drag & drop images here
Everything happens in your browser: your images are never uploaded anywhere. You can also just paste (Ctrl/Cmd+V) an image or an image URL.
MonsterConvert lowers quality as little as it can to get the file at or under this size.
Resize first (optional)
Some forms ask for a pixel size as well as a file size. Set it here and the file size is fitted after resizing.
How to compress a PNG image to 50KB
Three steps, all in your browser.
Add your image
Drag and drop your PNG (or any other image), click to browse, or paste it from your clipboard.
Check the 50KB target
The target is already set to 50KB. Change it if you need a different size.
Compress and download
Click Compress and download a file at 50KB or under, with as much quality kept as possible.
When you need 50KB
50KB is a common ceiling for passport photos, exam and visa application portals, and profile pictures on job and government sites. A plain, evenly lit photo compresses much better than a busy one.
PNG is lossless, so it has no quality setting to lower. The only way to make a PNG smaller is to reduce its pixel dimensions, and transparency is kept. If the site you are uploading to accepts JPG, the JPG version reaches the same size with far less visible loss.
What to expect at 50KB
As a rough guide, a typical photo saved as a PNG at 50KB is about 160 x 120 px. Logos, screenshots, and drawings with flat colors fit much more, and a photo saved as a JPG could be about 520 x 390 px at the same size.
Tips for getting to 50KB
- A PNG only reaches 50KB by having fewer pixels, so decide the smallest dimensions you can accept before compressing.
- If you don't need transparency and the destination accepts JPG, use the 50KB JPG page instead: the same size holds far more detail.
- Logos, icons, and screenshots with flat colors compress well as PNG. Photographs are the hard case.
Nothing uploaded
Compression happens in your browser using WebAssembly, so your photos and documents never touch a server.
Highest quality that fits
Instead of guessing a quality setting, it searches for the best one that keeps the file at 50KB or under.
Batch friendly
Drop in several images at once and compress them all to the same size in one go.
Related tools
Get the file ready first
Compress by quality instead
Frequently asked questions
Drop your PNG image into the box above and click Compress. MonsterConvert searches for the highest quality that still keeps the file at 50KB or under, and only shrinks the pixel dimensions if the quality alone can't get there. Then download the result.
It will be 50KB or smaller, as close to it as the search can get, which keeps as much quality as possible. It won't be padded up to the exact size. If your image is already under 50KB, it is returned unchanged.
Very large or very detailed images sometimes can't get under a small target without shrinking a lot. When that happens the row tells you it got as close as it could instead of pretending it hit the target. Try cropping away unneeded parts first, or set a larger target size.
PNG stores every pixel without loss, so there is no quality dial to turn down. The file only gets smaller if it has fewer pixels, which is why the compressor reduces the image's width and height until it fits 50KB. Choose the 50KB JPG page instead if a JPG is acceptable: it reaches the same size with much less visible loss.
A large photo with a detailed background needs fewer pixels as well as lower quality. The compressor shrinks the dimensions automatically unless "Keep original dimensions" is on.
Yes. Open "Resize first", set the width or exact dimensions, and the file size is fitted after that.
Yes. Open "Resize first (optional)" under the size controls and set a fixed width, exact dimensions, or a percentage. The image is resized first, and the file size is then fitted to 50KB.
MonsterConvert uses 1 KB = 1,000 bytes, so the result stays under the limit whether a website counts a kilobyte as 1,000 or 1,024 bytes. The size shown next to your file uses the 1,024 convention, so it can look slightly lower than 50KB.
No. The image is compressed inside your browser using WebAssembly, so it never leaves your device. That makes it safe for ID photos and other private documents.
Yes. Turn on "Keep original dimensions" under the size controls. Only the quality changes then, so the image may end up a little over 50KB if the quality floor isn't enough.