Image Compressor

Compress Images to Any Size — Free, Private, In Your Browser

This image compressor reduces the file size of your JPG, PNG and WebP images — either with a simple quality slider, or by entering an exact target size such as 20 KB, 50 KB or 100 KB. Everything happens right in your browser: your image is never uploaded to a server, never stored, and never seen by anyone. No sign-up, no watermark, nothing to install.

Compress an Image to an Exact Size: 20 KB, 50 KB, 100 KB, 200 KB

Most compressors only offer a vague quality slider — but real life comes with exact limits: an application portal that rejects photos over 100 KB, a form that wants a signature under 20 KB, an email attachment cap. In Target file size mode you type the size you need and the tool automatically searches for the best possible quality that fits at or just under that limit — it will never overshoot your target. Common requirements:

A realistic expectation: a typical 2–5 MB phone photo compresses to 100 KB while still looking good on screen. Pushing the same photo to 20 KB will visibly soften it — fewer kilobytes simply cannot hold as much detail — but it will meet the limit, and the tool always reports the exact size achieved so there are no surprises.

How to Compress an Image

1. Add your image — drag and drop a JPG, PNG or WebP onto the drop zone, click to browse, or paste from your clipboard.
2. Choose your mode — use the Quality slider for general shrinking, or Target file size and type the exact KB or MB you need. When your image loads, the size bar starts at the original size — drag it down to your target.
3. Compress & download — press Compress, compare the result beside the original with the exact savings shown, then download.

How the Compression Works

• JPG — re-encoded at the highest quality that fits your budget. Photos shrink dramatically because JPG discards detail the eye barely notices.
• WebP — re-encoded the same way, keeping WebP’s efficient compression.
• PNG — compressed by intelligently reducing the color palette, which shrinks the file while preserving transparency — ideal for logos, icons and graphics.

In Target mode the tool runs a fast automatic search — several trial encodes — to land as close to your limit as the format allows without going over. And if an image is already so well optimized that compression would make it larger, your original is kept: you never get a bigger file.

Why This Compressor Is Different

• 100% private — most online compressors upload your image to their servers. This one runs entirely on your device: personal photos, ID documents and client work never leave your computer.
• Exact-size targeting — not just a quality slider: name the KB and it finds the best quality that fits.
• Honest results — the before/after panel shows real dimensions, real sizes and the real percentage saved. If a target can’t be reached, it says so plainly.
• No friction — free, no account, no watermark, no file limits, works offline once loaded.

Why Compress Images?

• Pass upload limits — application portals, forms and marketplaces reject oversized files.
• Faster websites — oversized images are the top cause of slow pages; smaller files improve load time and Core Web Vitals.
• Easier sharing — fit email caps and send faster on slow connections.
• Less storage — keep more photos in the same space on your device or cloud.

Is It Safe and Private?

Yes. Because everything happens locally in your browser, your image is never uploaded, never copied to a remote server, and never stored after you close the tab. That matters most for exactly the images people compress for forms — ID photos, signatures and personal documents.

Frequently Asked Questions

How do I compress an image to 100 KB?

Add your image, switch to Target file size, type 100 and choose KB, then press Compress. The tool finds the best quality that fits at or just under 100 KB and shows the exact result.

How do I compress an image to 20 KB or 50 KB?

Same way — enter 20 or 50 KB as the target. Very small targets on large photos soften visible detail, but the tool always gets as close as the format allows and never overshoots your limit.

How do I compress a photo for online forms and job portals?

Enter the portal’s limit (commonly 20–100 KB) as your target, compress, and download. The result never exceeds your target, and your documents stay on your device.

Can I compress an image without losing quality?

Meaningful size reduction is usually lossy, but at moderate settings the difference is invisible to most eyes — and PNGs can sometimes shrink losslessly. Compare the side-by-side preview and adjust.

Are my images uploaded to a server?

No. Compression happens entirely in your browser — unlike most online compressors, your image never leaves your device.

Which formats can I compress?

JPG, PNG and WebP. PNG transparency is preserved.

What if compressing would make the file bigger?

The tool keeps your original in that case — you never end up with a larger file.