Compress Image Size in KB

Compress any image down to a target file size in KB — pick a preset or enter a custom limit. Before/after preview, runs entirely in your browser.

Target size KB
Drop an image here or browse Target ≤ 50 KB · JPG, PNG, WebP · nothing is uploaded
Compressing…0%
Original
Original—
Compressed
Compressed − —
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How to use Compress Image Size in KB

Three quick steps — no sign-up needed

  1. Step 1

    Upload your image

    Drag and drop your image into Compress Image Size in KB, or click to browse.

  2. Step 2

    Choose compression

    Pick a quality level — see the size saving before you download.

  3. Step 3

    Download

    Save your smaller image, optimised for sharing and faster loading.

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About Compress Image Size in KB

Compress Image Size in KB shrinks a photo to a specific file size — handy for upload limits on government forms, job portals and exam applications that demand, say, a photo under 50 KB or 100 KB. Pick a target preset or type your own KB limit, and the tool automatically balances quality and dimensions to get as close as possible while staying under your cap. You see the original and compressed versions side by side with the exact sizes and how much you saved. Everything happens in your browser, so your images are never uploaded.

Benefits of Compress Image Size in KB

Smaller file size Cut your image down by up to 90% so it's quick to email, upload and store.
Keep the quality Smart compression keeps your file looking sharp while stripping wasted bytes.
Faster loading & sharing Lighter files load faster on the web and slip under email and upload limits.
No watermarks Your compressed image comes back clean — never branded or stamped.

Frequently asked questions

How does it hit an exact KB target?

It runs a binary search on JPEG quality, and if quality alone is not enough it progressively scales the dimensions down until the file fits under your target size.

Can I set a custom size like 35 KB?

Yes. Use the custom field to enter any value from 10 KB up to 10 MB, in addition to the quick presets.

What format is the output?

The compressed image is saved as JPEG, which gives the smallest size for photos. Transparent areas are placed on a white background.

Are my images uploaded?

No. Compression runs locally in your browser, so the image never leaves your device.