Reduce Image Size in KB — Compress to 20KB / 50KB / 100KB Online
No app to download. No files uploaded to a server. Set your target KB and compress photos or signatures right here.
Choose a limit. Results leave a 500-byte safety margin.
Before and after
Check each preview and your form’s required pixel dimensions before submitting.
A smaller photo. A form ready to submit.
Use this tool to reduce image size in kb for an exam registration, a government application or a visa photo field. Choose the exact file-size limit shown on your form.
- Set your targetPick 20KB, 50KB, 100KB or enter your own limit.
- Choose your imagesSelect one photo or a batch. Compression starts automatically.
- Check and downloadPreview the result and save your smaller JPG.
For photo resize in kb, this tool adjusts both JPEG quality and image dimensions when needed. An image size reducer in kb helps meet the file-size cap; check your form’s separate rules for width, height, background and face position too.
Frequently asked questions
How do I reduce a photo to 20KB?
Set the target to 20KB and choose your image. The tool adjusts JPEG quality and, when needed, reduces its dimensions to fit within 19,500 bytes, leaving a 500-byte safety margin below 20,000 bytes. Check the result preview, then download the JPG.
Will my photo become blurry after compression?
Some detail is lost when a large photo is reduced to a small file. The tool balances dimensions and JPEG quality to keep faces readable. Start with a sharp, closely framed photo and check the preview. If your form allows a larger file, choose a higher target.
Which image formats are supported?
You can select JPG (JPEG), PNG and WebP files up to 20MB each. Every result is a JPEG (.jpg). Transparent parts of PNG and WebP images are filled with white.
Are my photos uploaded to a server?
No. Your photos are processed locally in your browser and never sent to a server. No app download, account or sign-in is needed. Files and results are kept only in this tab; clear the results or close the tab to release them.
Can I compress several images at once?
Yes. Choose or drop multiple images together. They are processed one at a time to keep your device responsive. Each result has its own size, status, preview and download button.
Can I get below 50KB without a blurry face?
A sharp, closely framed original usually gives better results. We balance resolution and JPEG quality and show a preview. Use a larger target if your form allows it; no compressor can keep every detail at a very small size.
What if my photo must be at least 20KB?
Use the minimum-size tool to raise JPEG quality or enlarge the image proportionally. A 20KB minimum targets an actual result between 20,000 and 26,000 bytes. Increase image size in KB.