Can I compress an image to an exact file size (like 50KB or 100KB)?

Yes! Enter your target size in KB (e.g. 50, 100, 200). The automated binary search algorithm will iteratively tune quality and compression quantization to fit your exact budget.

Are my images uploaded to any server?

No. All image decoding, resizing, and encoding happens entirely client-side in your browser memory via the HTML5 Canvas API and WebAssembly.

Image Size Reducer & Compressor (Exact KB Target)

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Drop your image here, or browse

Supports JPEG, JPG, PNG, and WebP files up to 50 MB.

Target File Size: Auto

Compression Quality: 75%

Image Dimensions Scale: 100%

Output Format:

ORIGINAL IMAGE 0 KB

COMPRESSED PREVIEW 0 KB

-0%

Original: 0 KB → Reduced: 0 KB

Resolution: 0 × 0 px

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Zero Server Uploads

All downscaling and quantization occur in browser memory. Confidential photos and internal graphics remain strictly on your computer.

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Exact Target KB Precision

Fit strict upload limits on job portals, government forms, passport applications, and web hosting without trial-and-error.

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Modern WebP & MozJPEG

Convert bulky PNGs or heavy camera snapshots to modern WebP with up to 90% size reductions without visual degradation.

Frequently Asked Questions

How do I reduce an image to 50KB or 100KB?

Click the 50 KB or 100 KB preset button above. The tool automatically runs a binary search algorithm across quality and resolution quantization to compress the image precisely under your specified byte threshold.

Which format gives the best compression?

WebP typically produces the smallest file size (25–35% smaller than JPEG at identical visual quality). JPEG is universally compatible with every device, email client, and form.