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Compress to 100 KB

Compress Image to 100 KB

Make a photo, scan or signature 100 KB or smaller. Add your picture and it is ready in seconds. This size is common for an ID photo, a thumbnail or a blog picture. Free, no sign-up, and your picture never leaves your device.

Fits 100 KB
JPG, PNG, WebP
Many at once
Before and after
No upload

Drop your images here

or paste them. JPG, PNG, WebP, GIF and BMP. Up to 100 at a time

Quick settings

Set the quality Set an exact size

Quality 75

Balanced (recommended)

Longest side Save as

Pictures that are compressed lose their hidden camera data, such as the GPS location. In an exact size, quality is lowered first, and the picture is made smaller only if it still does not fit.

Done on your device. Your pictures are never sent to FileXL.

Exact size20, 50, 100, 200 KB and more
Up to 100pictures at once, as a ZIP
0 bytesuploaded, ever
JPG, PNG, WebPtransparency kept

By FileXL Team | Last reviewed 13 November 2026 | [email protected]

How do I compress an image to 100 KB?

Add your picture to the box. The setting Under 100 KB is already selected, so the tool lowers the quality step by step until the file is 100 KB or smaller, and makes the picture a little smaller in pixels only if it still does not fit. Check the result in the before and after view, then download it.

How it works

How to compress an image to 100 KB in 3 steps

No app, no account and no waiting. The picture is compressed in your browser, so you see the new size straight away.

Add your picture

Drop a JPG, PNG or WebP file in the box, choose it from your device, or paste it. You can add several.
Check the size

The setting is already Under 100 KB. Change the number if your form wants a different size. A note shows if the picture had to be made smaller in pixels.
Download

Compare the picture with the original, then download it. The file is 100 KB or smaller.

Tips

Tips for a 100 KB picture

For a photo, JPG gives the smallest file at this size. Use PNG only for logos and graphics.
If the picture is very large, set the longest side to 1600 px or less to help it fit with less loss.
Check faces and text in the before and after view.
Compressing a batch? Add them all and download one ZIP.

Other ways to compress an image

Privacy

Private by design: your pictures never leave your device

Most online compressors upload your pictures to a server. This one does not. The work is done by your own browser, so an ID photo, a signature or a private picture is never sent to FileXL or anyone else. Turn off your internet after the page has loaded and it still works.

Need to send big files? Upload them with FileXL and share a link. Other tools that work the same way: the Photo Resizer, the PDF compressor and the QR code generator.

FAQ

Compress to 100 KB questions, answered

How do I reduce an image to 100 KB?

Add the picture. The tool is already set to Under 100 KB. It lowers the quality until the file fits, and makes the picture a little smaller in pixels if quality alone is not enough. Then download it.

Will my picture still look good at 100 KB?

At 100 KB most pictures still look clean. Use the before and after view to check, and try a different size if you are not happy.

The file is smaller than 100 KB. Is that a problem?

No. 100 KB is a limit. Upload forms reject files over the limit, and accept files under it. The tool keeps the best quality that still fits.

Are my pictures uploaded to a server?

No. The pictures are compressed in your browser, on your own device. They are never sent to FileXL or anyone else, and nothing is saved. Close the page and they are gone.

Does compressing an image reduce its quality?

JPG, WebP and the PNG palette method are lossy, so some detail is always lost. At a moderate setting, such as quality 75, the change is hard to see on most photos and the file is much smaller. At very small sizes the loss shows. Use the before and after view to check, and keep your original.

Which image formats can I compress?

JPG, PNG, WebP, GIF and BMP. GIF and BMP are saved as a new JPG or PNG. An animated GIF becomes a single still picture. Your browser may also open AVIF or HEIC pictures if it supports them, and the result is saved as JPG or PNG.

Can I compress many images at once?

Yes. Add up to 100 pictures, up to 100 MB each. The same setting is applied to all of them, and you can download them one by one or as a single ZIP file.

Is the photo location (EXIF data) removed?

Yes, for every picture that is compressed. It is written fresh, so hidden camera data such as the GPS location, the date and the phone model is not copied over. The picture still turns the right way up, because the tool applies its rotation before saving. One exception: a picture that is already under your size limit, or that cannot be made smaller, is returned as it is, with its hidden data. A note on its row tells you.

Can I compress an already compressed image again?

You can, but each lossy pass removes a little more detail. It is better to start from the original and pick the setting you want once.

Is this image compressor really free?

Yes. You can compress as many pictures as you like without paying, without an account and without a watermark. The files you download are yours to use for personal or business purposes. A small advertisement on the page helps to cover the cost.

Sources

Sources and further reading

The facts on this page come from the people who write the web standards and build the browsers. Read them for the full detail.

Google for Developers: WebP, an image format for the webHow much smaller WebP files are than comparable JPG and PNG files.
Google Search Central: image SEO best practicesWhy sharp but compressed and resized images matter for search and for page speed.
web.dev: Image performanceLossy and lossless compression, and when each one works best.
web.dev: Choose the correct level of compressionHow the quality setting works, and why you should not over-compress.
web.dev: Image formats, JPEGHow JPEG compression throws away detail that people are unlikely to notice.
web.dev: Largest Contentful Paint (LCP)The Core Web Vitals measure for loading speed, where 2.5 seconds or less is good.
MDN: Image file type and format guideThe web image formats, and which browsers support them.
MDN: HTMLCanvasElement.toBlob()The browser feature that writes JPG and WebP files, with a quality value from 0 to 1.
W3C: Portable Network Graphics (PNG) Specification, Third EditionThe PNG standard, including indexed-color pictures with a palette and transparency.

About this tool

Made and checked by the FileXL Team

This image compressor is built and maintained by the FileXL Team, the people behind the FileXL file sharing service. We test it on real photos, screenshots and transparent logos, we check that size limits are met, and we review this page and update it when browsers or standards change. Last reviewed 13 November 2026. Read more on the about page.

Questions, bugs or ideas: [email protected]
Author: FileXL Team

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