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Compress Image to 300KB — Free Online Tool

University portals, job applications, and e-commerce product upload systems frequently enforce a 300KB image limit. Our free compressor hits the 300KB target automatically with the best possible image quality — all in your browser.

Compress Image to 300KB — Free Online Tool — Try it free

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How It Works

  1. 1

    Upload your photo

    Drop a JPG, PNG, or WebP image. Processing is local — your file stays on your device.

  2. 2

    Confirm the 300KB target

    The tool pre-selects 300KB. It finds the highest JPEG quality that keeps the file at or below 300KB and shows you the result instantly.

  3. 3

    Download the compressed image

    Save the compressed image. The file size shown in the tool preview matches the actual download size.

Frequently Asked Questions

What upload forms have a 300KB image limit?+
Common examples: university application portals, civil service exam photo uploads, e-commerce product listing images, and some social media platforms that auto-compress above this threshold.
At 300KB, will my image look good?+
For a standard portrait or product photo displayed at screen sizes up to 800 px wide, 300KB JPEG quality is excellent — well above what most platforms display.
Can I compress a PNG to 300KB?+
Yes. PNG files are re-encoded as progressive JPEG when targeting specific sizes. If you need to keep transparency, the compressed PNG may still be larger than 300KB at acceptable quality — use JPG format for the smallest file.

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