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500KB Compressor Free
Compress an image to 500KB.
Need an image under 500KB? Upload it above. The compressor searches for a high-quality result below your target, with results shaped by the source image, dimensions, and format.
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- AVIF
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Original 0 B
New 0 B
Saved 0 B −0%
Ratio 1.00×
Spot check
Drag the divider or switch to side-by-side / zoom to compare the first image.
When is a 500KB target useful?
A 500KB target is useful when you want a compact but usable image for an email attachment, a content upload, a product preview, or a web page. It can be a sensible starting ceiling when a source photo is much larger than the place where it will be displayed. Preview at the final size, especially if the image contains faces, text, or fine texture.
The target-size mode on this page starts at 500KB. The compressor searches for a high-quality result under the target, making encoding and dimension adjustments as appropriate. Results depend on the source image, dimensions, and format. A higher target may produce a clearer result when the image contains detail that should be preserved.
Formats and privacy
Supported output formats include JPEG, PNG, WebP, and AVIF. Use the JPEG compressor for many photographs, the PNG compressor for sharp graphics or transparency, or the WebP compressor or AVIF compressor for web delivery. For this compressor, image files are processed in the browser rather than uploaded to a compression server.
Related tools for other jobs
For a different file ceiling, use the general compressor or compare the 100KB compressor and the 200KB target page. Process several files with the bulk image compressor. The email compressor and Discord compressor offer destination-specific guidance.
All image tools
Compress, resize, crop, convert, and more — all in your browser.
Related compressor tools
Optimize your images for any format, platform, or file size.
Frequently asked questions
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How do I compress an image to under 500KB?
Upload your image to the compressor. The target is preset to 500 KB, and the compressor searches for a high-quality result under that target. The final size and appearance depend on the source image, dimensions, and output format.
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What is 500KB useful for?
A 500KB target can be useful for an email attachment, a product image, a blog image, or a web upload where you want a compact file without starting with an unnecessarily large image. It is still a target to inspect, not a promise of the same quality for every source.
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Which output formats are supported?
The compressor can output JPEG, PNG, WebP, and AVIF from supported input images. JPEG is often useful for photographs, PNG for flat graphics or transparency, and WebP or AVIF for web workflows. The best format depends on the image and destination.
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Does this compressor upload my image?
For this compressor, image files are processed in the browser. They are handled locally for compression instead of being uploaded to a server, so the file stays on your device while the tool runs.
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Can I use 500KB for an email attachment?
You can try it, but the best size depends on the email provider, the number of attachments, and the display size. The email image compressor is a focused starting point, and you should check the final file size before attaching it.
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Free. Unlimited. Your files never leave your device.