Compress any image to 20 KB online for free. Perfect for passport photos, ID documents, and government application forms. No upload required — works in your browser.
Perfect for passport photos, ID documents, and government application forms that require very small file sizes.
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To compress an image to 20 KB (20,480 bytes) for free, drop it into SammaPix Compress and adjust the quality slider until the output meets the target — for most photos, quality 10-30% reaches 20 KB. Processing happens 100% in your browser using the Canvas API — no upload, no signup, no watermark. Tested on 100 real images: SammaPix matched SSIMULACRA 2 quality scores above 65 (no visible loss) at all output sizes >= 50 KB. For sizes below 25 KB, expect visible compression artifacts on photographic content — vector-style images and screenshots fare best.
Open the SammaPix Compress tool and drag your image into the drop zone. Supports JPEG, PNG, WebP, and GIF.
Adjust the quality slider until the output size is at or below 20 KB. Lower quality = smaller file.
Download your compressed image instantly. Everything runs in your browser — your photos never leave your device.
Typical results when compressing a photo to 20 KB.
| Property | Original | Compressed |
|---|---|---|
| File size | 300 KB | 20 KB |
| Quality | 100% | 40-55% |
| Size reduction | — | ~93% |
| Format | JPEG / PNG | JPEG / WebP |
Use high compression (quality 30-50%) to reach 20 KB — most forms accept lower quality for ID photos.
Reduce image resolution to 600×600 px or smaller before compressing for best results.
Convert to WebP format first — it achieves 20 KB at much higher visual quality than JPEG.
Crop tightly around the subject to remove unnecessary background pixels.
Ready to compress?
Use Compress to reduce your images to 20 KB or below, or Convert to WebP for even smaller files at the same quality.
Upload your image to SammaPix Compress, set the target quality slider low (around 30-50%), and download. If the file is still too large, reduce the resolution first using our Resize tool, then compress again.
At 20 KB the image will lose some detail, but for ID photos and passport images the result is perfectly acceptable. Most government portals are designed to work with heavily compressed images.
WebP delivers the best quality at 20 KB. If the upload form only accepts JPEG, use JPEG with progressive encoding enabled. Avoid PNG at this size — it is not designed for such heavy compression.
Yes, but results depend on the original image. A 4000×3000 photo compressed to 20 KB will look very blurry. For best results at 20 KB, resize to 400-800 px on the longest side first.
Compress to 25 KB
Ideal for government forms, visa applications, and official document uploads where a strict 25 KB limit is enforced.
Compress to 50 KB
Great for email signatures, thumbnails, profile avatars, and forum uploads where small file sizes load faster.
Compress to 100 KB
The most popular target size — perfect for web uploads, form submissions, email attachments, and CMS image fields.
100% private
All compression happens in your browser. Your images never leave your device — nothing is uploaded to any server.
Instant results
No waiting for server processing. Compress images in milliseconds using your device's own hardware.
Free, no limits
Compress as many images as you want. No watermarks, no sign-up, no daily caps on the free plan.