How do I compress an image to an exact KB size?

Drop your image, tap a target size like 50 KB or type a custom KB value, and the tool compresses it to that size instantly.

Are my images uploaded anywhere?

No. All compression happens in your browser, so your files never leave your device.

Which image formats are supported?

JPG, PNG and WebP. For hitting an exact KB target, JPG or WebP works best.

Can I compress multiple images at once?

Yes. Drop several images and use the Download all button.

Yes, completely free with no watermark, no sign-up and no limits.

Compress Image to KB — Exact Size JPG/PNG Compressor

Compress any JPG, PNG, or WebP image down to an exact file size — 10 KB, 20 KB, 50 KB, 100 KB, 200 KB, or any custom KB you need. Perfect for form uploads, exam and government portals, and faster websites. Your images are processed privately in your browser and are never uploaded to a server.

Compress Image to an Exact KB Size

Exact size, guaranteed. Batch supported. Nothing leaves your device.

🔒 100% private

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Drop images here, click to browse, or paste (Ctrl+V)JPG · PNG · WebP · multiple files at once

Target size

Custom

Output Max dimension

Popular targets: 10KB · 20KB · 50KB · 100KB · 200KB · any size

Why our image compressor is better

Compress to an exact KB — most tools only offer a quality slider; ours hits 20KB, 50KB, 100KB or any size you type.
100% private — images are compressed in your browser and never uploaded to a server, ideal for ID photos and documents.
Smart resizing — if your target is very small, it automatically reduces dimensions so it can still reach the size.
Batch support and instant download, with no watermark, no sign-up and no limits.