Compress and convert images to fit an upload limit
Hit a form's upload limit without guessing. Choose a format and a target size, and the compressor finds the highest quality that still fits underneath it. The sizes you see are measured from the real output, not estimated.
This tool doesn't use AI credits. Last updated 13 October 2026.
What it does
- Convert between WebP, JPEG, PNG and AVIF
- Target a maximum file size and let it find the best quality that fits
- Resize to a maximum width or height
- See the real before-and-after file sizes
How it works
Add an image
Upload the photo or scan.
Set the format and limit
Pick a format, a size ceiling and, if needed, a maximum dimension.
Download
Check the measured size, then save the file.
Try asking
- “Get this scan under 1 MB as a JPEG.”
- “Convert my diagram to WebP at 1280 px wide.”
Good to know
- It costs no credits.
- Size targets currently include 500 KB, 1 MB and 2 MB; for very small limits, also reduce the maximum dimension.
- Heavy compression lowers quality. Check text in scans stays readable before you submit.
Frequently asked questions
Does it really hit the size I choose?
It searches for the highest quality that fits under your limit and shows the measured result, so you can see whether it fit before you download.
Which formats can I convert to?
WebP, JPEG, PNG and AVIF.
Is it free?
It uses no AI credits. You need a Learnsable account to use it.
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