Compress any image to 50 KB online for free. Great for email signatures, thumbnails, profile avatars, and forum uploads. Works entirely in your browser.
Great for email signatures, thumbnails, profile avatars, and forum uploads where small file sizes load faster.
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To compress an image to 50 KB (51,200 bytes) for free, drop it into SammaPix Compress and adjust the quality slider until the output meets the target — for most photos, quality 30-55% reaches 50 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 50 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 50 KB.
| Property | Original | Compressed |
|---|---|---|
| File size | 750 KB | 50 KB |
| Quality | 100% | 70-85% |
| Size reduction | — | ~93% |
| Format | JPEG / PNG | JPEG / WebP |
For email signatures, compress to 50 KB at 300×100 px — it loads instantly in every email client.
Square avatars (200×200 px) compress to 50 KB at excellent quality (75-85%).
Use progressive JPEG encoding — the image appears to load faster even at 50 KB.
If your image has large flat-color areas, PNG at 50 KB may look sharper than JPEG.
Ready to compress?
Use Compress to reduce your images to 50 KB or below, or Convert to WebP for even smaller files at the same quality.
The trick is to resize the image to the display dimensions first. A 300×300 avatar compressed to 50 KB looks nearly identical to the original. Upload to SammaPix, set quality to 70-80%, and download.
Absolutely. Most website thumbnails are displayed at 200-400 px wide. At 50 KB with JPEG or WebP compression, thumbnails look crisp and load almost instantly, improving your page speed score.
Yes. Use SammaPix Compress to upload multiple images at once. Set the quality slider to your target, compress all, and download them individually or as a ZIP file.
WebP gives the best visual quality at 50 KB. If you need broad compatibility, use JPEG. Avoid PNG for photos at this size — it is better suited for graphics and icons.
Compress to 20 KB
Perfect for passport photos, ID documents, and government application forms that require very small file sizes.
Compress to 100 KB
The most popular target size — perfect for web uploads, form submissions, email attachments, and CMS image fields.
Compress to 200 KB
Ideal for blog images, social media posts, and product photos where you need a good balance between quality and file size.
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.