Compress JPG to 50KB
Compress JPG to 50KB online. Reduce your JPG file to around 50KB for email, uploads and forms, free, fast, no watermark.
JPG files · up to 50 MB each · 100 MB with a free account
| File name | Size | Compress to |
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Checking files and selected compression settings.
This page stops at 50 MB and one file per run. Pro compresses files up to 1 GB and a full batch in one go, with a priority queue.
What this tool does
Set 50 KB as the target and the engine works down to it in steps, stopping at the first result that fits rather than padding the file back out.
The JPEG quality factor steps down until the file fits. The output is still a JPG and still opens anywhere.
Files are processed on our servers, not in your browser. The upload and the result are both permanently deleted within 1 hour, no backups and no copies kept.
No watermark, and no account needed to use it. 5 files a day at up to 50 MB each, sent singly or together; signing in is free and raises each file to 100 MB.
Making a thumbnail that holds together
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1
Crop to the subject
A tile two hundred pixels across cannot carry a wide scene. Cut in to the face, the product or the single object that identifies the picture, then shrink what is left of it.
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2
Take the dimensions down hard
Around 900 px on the long edge, a quality factor in the low sixties reaches this size. Pixels are the cheaper thing to surrender, so cut them first and leave the quality as high as the budget permits.
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3
Look at it at tile size
View the file at the dimensions the grid will use. Faults that are glaring on a full screen vanish at two hundred pixels, and two hundred pixels is the only size that counts here.
Small on screen, so small in bytes
50 KB is less a quality setting than an admission about size. Avatars, product tiles, list thumbnails and card images occupy a couple of hundred pixels on screen, and an image that small has no business carrying a full frame's worth of data. Most of the saving here comes from discarding pixels, and at these display sizes nobody misses them.
What has to go to reach 50 KB
The 4000x3000 frame at 3.4 MB finishes at 47 KB. Reaching that is not a matter of turning the quality down: the long edge has to come in a long way too, because a budget this small cannot cover that many pixels at any usable quality factor.
The consequence is a file that is fine at the size it was built for and poor anywhere else. Stretched across a browser window the same picture breaks into visible blocks wherever the content is even, a clear sky being the usual giveaway. Below roughly 800 by 600 it looks perfectly ordinary.
The cases this target is genuinely for
Profile pictures are the obvious one. They are drawn as a circle a few dozen pixels wide, and they are frequently served to every visitor on every page, so their weight is paid repeatedly. Catalogue grids are the other: twenty tiles at 50 KB is a megabyte, where the same twenty at 200 KB is four.
Interface decoration belongs here as well. Background textures, card headers, small illustrations set beside a heading. Nobody examines any of them, and spending more on them only slows the page that carries them.
When 50 KB is the wrong answer
If a visitor can click the image to see it bigger, do not put the only copy through this target. Build the tile at 50 KB and keep a separate, larger file behind the click. One file cannot do both jobs, and asking it to leaves you with a blurry enlarged view.
Line art, logos, screenshots and anything else made of flat colour and hard edges should not be a JPG at this size at all. Lossy encoding leaves fringes along sharp boundaries, and a PNG of the same graphic is usually both smaller and clean.
Questions people actually ask about this
My 50 KB image looks fine in the grid but terrible opened up. Is that normal?
Yes, and it is what the target is for. The file has had most of its pixels removed in order to fit, so it only holds up at tile size. If the picture is meant to be opened as well, store two versions of it rather than one.
Can I keep the original dimensions and only lower the quality?
You can ask for that, but a 4000 px wide photograph held at full width inside 50 KB has to run the quality factor so low that the entire frame goes blocky. Shrinking the picture is much kinder to it than starving it.
Is 50 KB small enough that I can stop thinking about an avatar?
For a photograph, yes. Many avatars are not photographs, though, and a flat-colour monogram or a simple mark saved as a PNG often comes out well under 50 KB with no artefacts at all. Work out what the image really is before settling on the format.
Why did compressing my 30 KB image not make it smaller?
There was nothing left to reclaim. The figure is a ceiling, not an instruction to halve the file, and a photograph already under 50 KB is at the point where a further lossy pass costs visible quality and returns almost no space. Leave it alone.