Compress Image to 20 KB
Small-file limits are common on exam forms — compress your photo and signature to 20 KB and keep them clear enough to be accepted.
- Files never leave your device
- 100% free
- No sign-up
- No watermark
- Works offline after first load
or drag & drop JPG, PNG or WebP images — or paste with Ctrl+V
How to compress an image to 20 KB
- Select or drop your images — one or many, JPG, PNG, WebP or HEIC.
- The size is already set to 20 KB; change it, the format, or whether the picture may be made smaller, if you like. The preview shows the result and its file size.
- Click Compress and download — every image is 20 KB or less.
About Compress Image to 20 KB
Many forms and websites reject pictures over 20 KB — most often for signatures and small photos on online application forms such as SSC, railway and banking exams. Add your signature or small photo and the tool finds the highest quality that fits under 20 KB, so you don’t have to guess or retry.
If even a low quality is too big, the picture is made just small enough to fit, keeping it sharp. Keep JPG or switch to WebP for even better quality at the same size, compress many images at once, and check the before / after preview — all in your browser.
Good for
- Uploading photos and signatures to application forms
- Meeting attachment limits on email and chat
- Saving space while keeping photos sharp
Tip: Crop away empty background before compressing — the subject keeps more detail at the same file size.
Frequently asked questions
How do I get an image under 20 KB?
Add the image — the target is already 20 KB. The tool tries qualities from high to low and keeps the best one that fits; if even a low quality is too big, it makes the picture slightly smaller so it still looks sharp.
Where is a 20 KB limit used?
Most often for signatures and small photos on online application forms such as SSC, railway and banking exams.
Will the image still look good?
At 20 KB photos usually stay clear. Very small limits need strong compression — keep the subject large in the frame and avoid busy backgrounds for the best result.
Is 20 KB measured exactly?
Yes — every file is made 20 KB or a little less, measured in bytes (1 KB = 1000 bytes), so it is also under the limit on websites that count 1 KB as 1024 bytes.
Can I compress several images to 20 KB at once?
Yes. Add as many as you like; each one is compressed to the limit and you can download them together as a ZIP.
Do my photo and signature leave my device?
No. They're compressed in your browser and never uploaded.