Compress Image to 100KB

100KB keeps photos looking great while meeting upload limits for forms, email attachments and web pages.

  • Nothing uploaded — images are compressed right in your browser
  • Batch up to 20 images free, download them all as a ZIP
  • Hit an exact size in KB — perfect for exam and job forms

Pro: up to 100 images at once, iPhone HEIC photos, AVIF and extra-small files.

Select images to compress

or drop them here — JPG, PNG, WebP, GIF, AVIF.

Private: images never leave your device with the free compressor.

Popular: Image compressor · Compress to 20KB · Compress to 50KB · Compress to 100KB · Compress JPEG · Compress PNG · Resize an image · Passport photo maker

Frequently asked questions

Will a 100KB photo look good?

Yes — for most photos 100KB is plenty for sharp results on screen. We use the highest quality that fits, and you can compare before and after on every image.

Are my images uploaded?

Not with the free compressor — everything happens in your browser, so your images never leave your device. Pro compression is the exception: images are uploaded to our server, compressed, and deleted as soon as you download them.

How many images can I compress at once?

Up to 20 at a time for free, downloaded together as a ZIP. Pro compresses up to 100 at once and also accepts iPhone HEIC photos, AVIF output and larger files.

Can I compress a large photo to a size in MB?

Yes — switch the size box to MB (or tap 2, 5, 10 or 20 MB). For example, a 50 MB camera photo can be brought down to 20 MB. Free compression handles images up to 40 MB each in your browser; Pro handles bigger files on our server.

Which formats are supported?

JPG, PNG, WebP, GIF, BMP and AVIF in your browser; Pro adds HEIC and TIFF. You can keep each image's format or convert them all to JPG, PNG or WebP (and AVIF with Pro).

Is my photo's location data removed?

Yes. Compressing removes hidden metadata such as the GPS location phone cameras store — it makes files smaller and keeps your location private.

Will a file ever get bigger?

No — if an image is already as small as it can be at your settings, we keep the original instead and mark it “Already optimized”.