Compress any image to 500 KB online for free. Perfect for high-quality blog images, portfolio sites, and presentation slides. Browser-based, instant results.
Perfect for high-quality blog images, portfolio sites, presentations, and any context where visual detail matters.
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To compress an image to 500 KB (512,000 bytes) for free, drop it into SammaPix Compress and adjust the quality slider until the output meets the target — for most photos, quality 55-75% reaches 500 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 500 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 500 KB.
| Property | Original | Compressed |
|---|---|---|
| File size | 7.3 MB | 500 KB |
| Quality | 100% | 80-90% |
| Size reduction | — | ~93% |
| Format | JPEG / PNG | JPEG / WebP |
At 500 KB you can keep 2000+ px images at quality 85-90% — ideal for photography portfolios.
Presentation slides with a single full-bleed photo should target 500 KB each to keep the deck under 10 MB.
For e-commerce zoom views, 500 KB at 2000×2000 px lets customers see product texture and detail.
Enable progressive JPEG to improve perceived load time — the image renders progressively as data arrives.
Ready to compress?
Use Compress to reduce your images to 500 KB or below, or Convert to WebP for even smaller files at the same quality.
Use 500 KB when visual quality is critical: photography portfolios, product zoom images, design showcases, or print-quality previews. Use 100 KB for general web images where loading speed matters more than pixel-perfect detail.
For a single hero image, 500 KB is acceptable. However, avoid placing multiple 500 KB images on the same page. Use lazy loading and serve smaller thumbnails, loading the 500 KB version only when the user clicks to enlarge.
A 2000×1500 px photo compresses to 500 KB at quality 85% with excellent results. For square images, 1800×1800 px at quality 80% reliably hits the 500 KB target.
A typical smartphone photo is 4-8 MB. Compressing to 500 KB reduces the size by 90% while retaining nearly all visible detail at screen resolution. The difference is only noticeable at 200% zoom or when printing.
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.
Compress to 1 MB
Ideal for print-ready web images, high-resolution product photos, and professional portfolios where maximum detail is needed.
Compress to 2 MB
Best for high-quality prints, professional photography, large display images, and archival web galleries.
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.