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Select a JPG, PNG or WebP image up to 20 MB.
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Compress Image to 500 KB
Reduce a JPG, PNG or WebP image to 500 KB or less. Preview your compressed JPEG before downloading.
No photo uploadsNo watermarksWorks in your browser
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Maximum 20 MB per image
Target size
The result targets this upper limit. Dimensions may be reduced to fit.
Processed on your device
Your file is ready
Your photos stay in this browser. No account needed.
For website photos, choose dimensions close to the space where the image will appear. Sending a huge camera image into a small card is rarely necessary.
Quick steps
How to compress an image to 500 KB
Check the target
500 KB is selected for this page. You can choose another preset if you need it.
Review and download
Check the actual file size and image preview, then save the JPEG.
A few useful details
Reduce a large photo without aiming too small
A 500 KB limit is a sensible starting point when you need a lighter web image but do not need a tiny file. Compare the preview with your original, especially around text and the edges of the subject.
If the picture will sit in a small website card, resize it close to that display size first. Keeping thousands of pixels that the viewer will never see can make the file unnecessarily large.
If your original is already below 500 KB, you might not need a new copy at all. The size comparison will show whether this export is actually smaller. Keep the version that suits your destination best.
Before you save the result
For website photos, choose dimensions close to the space where the image will appear. Sending a huge camera image into a small card is rarely necessary.
The converter uses 1 KB = 1,024 bytes. If an upload form uses a stricter decimal limit, choose a slightly lower target in the custom-size reducer.
Choose a practical copy for a website or catalogue
Start from the space where the photo will appear
If a listing displays an image in a small area, a full camera-resolution file may add weight without a visible benefit. Resize to dimensions that suit that placement, then use the 500 KB target if the export is still above the destination’s allowance.
Check important detail before reducing further
Look at faces, text and the parts of a product a customer needs to assess. If a 500 KB copy already looks right and fits the limit, there may be no reason to squeeze it to a much smaller number. File preparation is a trade-off, not a competition for the fewest bytes.
Consider the format the destination supports
JPEG is convenient for many photo uploads, while WebP can be worth comparing for a compatible website. Use PNG when transparency or crisp graphics are the priority. This particular reducer exports JPEG, so use another tool if that output is not suitable.
Make a lighter version from the original
If you later need a 100 KB copy, return to the original rather than compressing the 500 KB download again. This gives the next export the best available starting point and avoids adding another round of JPEG loss to an already reduced image.
Visual examples
See what compression changes
Actual sample exports at three quality settings. These examples do not promise a particular KB target for your own image.
Input![Keep fine detail — Input]()
After![Keep fine detail — After]()
EXAMPLE 01
Keep fine detail
An 85% JPEG quality example keeps a generous detail budget. Compare hair, leaves and fine edges before using the export.
Actual sample exports at three quality settings. These examples do not promise a particular KB target for your own image.
Input![Make everyday images lighter — Input]()
After![Make everyday images lighter — After]()
EXAMPLE 02
Make everyday images lighter
A 65% quality example can suit images displayed at smaller sizes. The measured file sizes show whether the export actually saves space.
Actual sample exports at three quality settings. These examples do not promise a particular KB target for your own image.
Input![Explore the size–quality trade-off — Input]()
After![Explore the size–quality trade-off — After]()
EXAMPLE 03
Explore the size–quality trade-off
A 40% example makes compression more aggressive. Look for blocky textures or rough edges and choose a higher quality when needed.
Actual sample exports at three quality settings. These examples do not promise a particular KB target for your own image.
Frequently asked questions
Does the file have to be exactly 500 KB?
Usually an upload limit means “no larger than 500 KB.” This tool treats it as an upper limit. Check whether your form also specifies a minimum.
Can I use a PNG or WebP?
Yes, if the browser can read it. The result is JPEG, so any transparent area will be placed on white.
What should I do if the result is blurry?
Start again from the original. Crop unused space, or choose a larger limit if the destination allows it. Check text and faces before submitting the image.
Why is a file close to the limit being rejected?
The website may count KB differently or have another requirement. Try a slightly lower value in Custom Image Size Reducer, and check its pixel and format rules too.
Can I use this instead of changing the dimensions?
It can help with the byte limit, but a destination may require particular pixel dimensions as well. Check those separately.
Should I replace my original with the compressed copy?
Keep both when possible. The smaller copy suits the upload task; the original leaves you more room for later edits or a different output.
Keep working
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