Compress Image to 100 KB

Hit a 100 KB upload limit without guessing at a quality slider. Drop one photo below — output is JPG at or under 100 KB.

Drop a photo here, or click to choose

JPG, PNG, WEBP, or iPhone HEIC · max 50 MB · output is JPG at 100 KB

Why 100 KB is the sweet spot for many forms

Many government and university portals allow about 100 KB for passport photos — tighter than email attachments but far more forgiving than 20 KB signatures. You get enough room for facial detail if pixels are sized correctly first.

This page runs the same target-size search as the homepage preset, focused on a 100 KB JPG cap so you do not have to tune a quality slider.

How to use it

  1. Upload the photo from your form instructions.
  2. Wait while the tool searches for the best quality under 100 KB.
  3. Download the JPG and verify size in your file manager before submitting.

Need a tighter cap? Use compress to 20 KB. For custom width and height, start on resize image then compress.

When 100 KB is still not enough

If dimensions are far above the form’s pixel box, bytes remain high even at low quality. Resize to the stated width and height, then run this tool again.

Frequently asked questions

How do I compress an image to 100 KB?

Drop a JPG, PNG, WEBP, or HEIC file above. The server searches for the highest quality JPG still under 100 KB and provides a download link.

Is 100 KB better than 20 KB for photos?

Yes, when the form allows it. More kilobytes mean more detail in eyes, hair, and ID text. Only use 20 KB when the portal requires it.

Does this set exact pixel dimensions?

It scales very wide images down before compressing but does not read your form’s pixel rules. Set width and height in the editor or homepage compressor when the notification lists exact pixels.

Can I use WEBP or AVIF instead?

Most legacy forms accept JPG only. This tool outputs JPG for maximum compatibility.

HEIC from iPhone?

Supported on the server path. You can also convert first with the HEIC to JPG tool if you prefer a two-step workflow.