When 500 KB makes sense
A 500 KB ceiling is practical for content images, listings, slide graphics, and everyday sharing.
Ready-made target / 500 KB
Compress Image to 500KB
Bring a large photo or graphic under 500 KB while keeping as much visual detail as possible.
FreeNo sign upPrivate
Local tool / no upload
100% browser-sideSet your target
Keep only useful resolution
The larger budget can preserve generous dimensions, but removing pixels that will never be displayed still produces a more efficient result.
Need another limit?
Return to the main tool and enter any custom size in KB, MB, KiB, or MiB.
Choose a custom size →500 KB answers
Questions about 500 KB.
What the 500 KB ceiling means before you choose an image.
Will the compressed image stay under 500 KB?
Yes. A result is only shown as successful after its final Blob size has been checked at or below the effective 500 KB limit. If the original file is already smaller, the original file size becomes the effective ceiling.
Why can the result be smaller than exactly 500 KB?
500 KB is treated as a maximum, not a byte count that must be matched exactly. Image encoders produce discrete results, so the best valid output may land below the limit.
Is 500KB enough for a detailed content image?
Often it provides a useful balance, particularly when the display size is moderate. Very large or noisy sources can still require dimension changes because complexity affects the encoded size.
Will the tool resize every image at 500KB?
No. For JPG and WebP, it first searches for an encoding quality that fits. Pixel dimensions are reduced only when quality changes alone cannot meet the limit; PNG follows its lossless encoding path.
Are my images uploaded or stored?
No. Your original and processed images stay inside your browser and are never uploaded to our server. Refreshing or closing the page clears the working image data from the browser. Files you download remain on your device until you delete them.