Compress PNG to 50 KB
Fifty kilobytes is tight for a PNG, but it is plenty for a logo, an icon or a cropped interface screenshot once the colors are reduced to a palette. This page keeps the output as PNG, transparency included, and tells you honestly when the picture needs a different format to fit.
Compress Image
or drop JPG, JPEG, JFIF … files here ·
Max 95 MB per file· Up to 20 files· Deleted after 30 minutes
Files are processed on our servers and deleted after 30 minutes.
Never shrink below this width when downscaling. 0 means no minimum.
Optionally set the dimensions before compressing. Forms that specify pixels as well as KB need both.
Pixels for the side you chose above.
The search for the target size will not go below this quality; it downscales instead.
4:2:0 halves color resolution and saves a lot on photos; 4:4:4 keeps sharp edges on text, logos and screenshots.
Lossy PNG quantises colors (like TinyPNG) and is far smaller; lossless keeps every pixel.
How to use this tool
- 1
Drop in the PNG
Add a single PNG or a batch of up to 20, each up to 95 MB. Exports from Figma, Canva, Photoshop or a screenshot key all work.
- 2
Keep 50 KB, PNG and Lossy
Target size is set to 50 KB, Output format to PNG and PNG compression to Lossy (smaller). Under Advanced settings, a Minimum width stops a logo from being shrunk below a size you still need.
- 3
Compress to PNG and check the size
Press Compress to PNG. Each result shows its new size next to the download button, so you can see it is under 50 KB before you upload it anywhere.
Can a PNG really be compressed to 50 KB?
Yes for logos, icons, diagrams and cropped screenshots: reducing them to a palette of up to 256 colors usually gets them under 50 KB at full size. A large photo-heavy PNG will not fit without losing pixels, so WebP or JPG output is the better answer there.
Where a 50 KB PNG limit comes from
PNG is the format people reach for when an image needs a transparent background or razor-sharp edges: logos for an email signature, icons in a help center, badges on a profile page, stickers and cropped screenshots for a bug report. Those destinations tend to come with small budgets. Content management systems, learning platforms and older web forms often set image caps of 50 KB,.
The difficulty is that PNG exports are rarely small. Design tools save 32-bit color with a full alpha channel, and the Windows Snipping Tool and the macOS screenshot shortcut both save PNG by default. A 1280 px wide logo export or a single browser window capture can easily start at several hundred kilobytes.
Palette quantization vs lossless PNG at 50 KB
- 16 colors
Two-tone icons and line art; visible steps in anything shaded
- 32 colors
Simple flat logos and charts with a few series
- 64 colors
Interface screenshots without photos, mostly clean
- 128 colors
Logos with gradients or soft shadows, slight dithering
- 256 colors
The PNG palette maximum; closest to the original
Lossy mode here is palette quantization. The tool picks the colors that matter most in your image, up to 256, maps every pixel to the nearest one and stores a single 8-bit index per pixel instead of 32 bits of red, green, blue and alpha. The palette entries keep their own transparency through PNG's tRNS chunk, so a logo's anti-aliased edge still blends into any background.
Lossless mode keeps every pixel. It can only work on the encoding: PNG tries one of five row filters (None, Sub, Up, Average and Paeth) before compressing the data with Deflate, the same algorithm used in ZIP files, and metadata such as text chunks and embedded thumbnails is dropped. That trims a few percent to a third of a typical export, which is rarely enough to turn 400 KB into 50 KB. The JPG vs PNG guide covers why the two formats behave so differently.
When a PNG cannot reach 50 KB
Photos and big screenshots will not fit as PNG
A photo, a gradient-heavy illustration or a full-screen capture with images inside has thousands of distinct colors and very little repetition. Even at 256 colors it stays well above 50 KB at full size, so the tool has to shrink it. If the destination accepts it, set Output format to WebP to keep transparency, or convert PNG to JPG when no transparency is needed.
Compress PNG to 50 KB: questions
How small can a PNG logo get without looking cheap?
A flat logo with a handful of brand colors and a transparent background often fits in 5 to 20 KB at 500 px wide, far below this target. Logos with drop shadows, glows or photographic textures need more colors for their soft edges and land closer to 50 KB.
Why did my PNG come out narrower than the original?
The palette alone did not reach 50 KB, so Allow downscaling reduced the width and height until it did. That happens with large screenshots and anything containing photos. Set a Minimum width, or switch Output format to WebP, which keeps transparency and handles that content far better.
Is a quantized PNG still a real PNG?
Yes. Palette images, called indexed-color in the specification, have been part of PNG since the first version. Every browser and image editor opens them.
Should I choose Lossless for a 50 KB target?
Only when exact pixel values matter, as with pixel art, technical drawings or images that will be compared byte for byte. Lossless keeps every color and relies on smarter encoding plus metadata removal, so on most images it can only reach 50 KB by dropping pixels instead.
My form wants a 50 KB photo and accepts PNG. Is PNG the right choice?
Usually not. A face photo is continuous tone, which is exactly what a 256-color palette handles worst. The same photo as a JPG keeps far more detail at 50 KB, so use compress image to 50 KB with JPG output instead.