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Reduce Image File Size in KB – Free Image Compressor

Secure processingNo signup required100% freeFiles deleted after 1 hour

Drop your images here

Select one image to compress, or multiple for batch ZIP download

Max 200 MB · up to 10 filesAccepted: JPG, JPEG, PNG, WEBP, BMP, HEIC

Need to reduce an image from 2 MB to 500 KB, or from 800 KB to under 100 KB? This tool compresses JPG, PNG, and WebP images to any target kilobyte size by adjusting JPEG quality in real time. No upload to a server, instant download.

Government portals, visa applications, college admissions forms, and corporate HR systems often specify image size limits in kilobytes: "photo must be under 50 KB", "resume photo max 200 KB". This tool gives you the exact control to land under any size limit.

How to use it

Three steps, under 30 seconds from upload to download.

  1. 1

    Upload your image

    Select a JPG, PNG, HEIC, or WebP file. All processing happens in your browser, your photo is never sent to any server.

  2. 2

    Move the quality slider to hit your KB target

    The estimated output size updates as you drag the slider. Reduce quality until the estimate is below your required limit (e.g. 100 KB, 200 KB, 500 KB).

  3. 3

    Download the reduced image

    Click Download. The file saves at your chosen quality, at the size you targeted.

Common use cases

Real-world scenarios where this tool is the fastest solution.

✦

Visa application photos

Reduce passport-style photos to under 50 KB for online visa and immigration applications.

✦

Job portal profile photos

Compress professional headshots to under 200 KB for HR portals and job boards.

✦

Website product images

Compress product images to under 500 KB for faster page load on e-commerce sites.

✦

Government document scans

Meet strict KB limits on government forms that reject images or scans over a specified size.

What makes this different

✓

Real-time KB estimate

The output file size updates as you drag the quality slider, land under your target without guessing.

✓

Any KB target

Works for 50 KB, 100 KB, 200 KB, 500 KB, set the slider to match any portal's limit.

✓

Fully private

No server upload, all compression runs locally in your browser.

✓

No watermark

Free instant download, no account required, no watermark on the output image.

Questions & answers

Everything you might need to know before using the tool.

How do I reduce image size to less than 100 KB?+
Upload the image, then lower the quality slider until the estimated file size reads below 100 KB. For most photos, this lands between 60–75% quality. The change is barely visible at normal screen viewing sizes.
How do I reduce image size to less than 50 KB?+
Drop quality to 50–65% or resize the image to a smaller resolution first (e.g. 800px wide), then compress. Combining a smaller resolution with lower JPEG quality easily hits 50 KB for most photos.
What is the smallest image size I can achieve?+
For a typical passport photo at full resolution, 30–40 KB at 55% JPEG quality is achievable with minimal visible degradation. Very low-resolution thumbnails (200×200 px) can compress to under 5 KB.
Why does my PNG not compress as small as a JPG?+
PNG uses lossless compression, the file size depends on image complexity, not quality settings. To achieve the smallest file size in KB, convert PNG to JPG using this tool. JPG at 70% quality is typically 5–10× smaller than the equivalent PNG.

Your files are private

All processing runs locally in your browser using JavaScript. Your files are never transmitted to any server, stored, or shared. Close the tab and they're gone.

100%
Browser-local

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