Start with the actual requirement
Use the file limit from your application form, portal, or sharing workflow. You set the goal; the tool searches the quality settings.
ONE LIMIT. ONE READY FILE.
Compress to Size.
Need an image under 100 KB, 200 KB, or 1 MB? Set your file limit and let AillFor find the compression settings.
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Drop your image here
One file. A few clicks. Ready for what’s next.
JPEG, PNG, WebP · Up to 30 MB · 40 megapixelsMAKE IT YOURS
Find your fit.
Nothing uploaded. Nothing stored.1 KB = 1,024 bytes · Static images only
Your files stay on your device. Processing happens locally in your browser.
FROM FILE TO FINISHED
How it works
When a form says “maximum 200 KB,” the right quality setting should not be a guessing game. Enter a limit in KB or MB, choose JPG or WebP, and AillFor searches for a result at or below your cap. Quality is adjusted first; dimensions can be reduced when needed.
- 01
Add the image you need to upload
Choose a JPG, PNG, or WebP. Your browser reads it locally, and you can see its original size and dimensions.
- 02
Enter your maximum file size
Use a quick limit or type a custom target in KB or MB. Choose JPG or WebP to match the formats accepted by your destination.
- 03
Check the fit and download
AillFor tries encoding settings and can reduce dimensions to meet the cap. Review the resulting file size, dimensions, and image before saving it.
SMALL TOOL. USEFUL DIFFERENCE.
Why use Compress to Size?
Quality first, dimensions when needed
The search starts by adjusting encoding quality. If the image is still too large, reducing its dimensions creates more room to fit a small cap.
Your image stays on your device
Every compression attempt runs locally in the browser. There is no image upload, account, or server queue between you and your finished file.
A FEW GOOD QUESTIONS
Good to know.
Answers before you hit download.
Can I compress an image to exactly 100 KB?
The goal is a file at or below 100 KB, not exactly 100 KB. Image encoders produce discrete file sizes, so the result may be a little smaller. The same applies to 200 KB, 500 KB, 1 MB, and custom limits. Check the displayed output size before uploading.
What changes when I choose a very small target?
The tool lowers JPG or WebP quality and can shrink the image dimensions if quality changes alone do not fit the cap. Very small targets may make fine text or details less clear. Always review the result and confirm that its dimensions still meet your destination’s requirements.
Which output format should I choose for my upload?
Choose a format accepted by the destination. JPG is a useful choice when the form asks for JPEG; transparent areas become white. WebP can retain transparency if it is accepted. If the target cannot be met, the tool reports that instead of promising an exact size or a successful upload.