Resize an image to 500 KB

Reduce a photo toward a 500 KB file size online for free.

Your workspace File size · Preview · DownloadPrivate by default

A fresh canvas

Choose an image to get startedDrop your image here, paste it, or pick one belowJPG · PNG · WebP · HEIC · AVIF · GIF · BMP

Runs on this device. The first use downloads a 56 to 135 MB model once. Nothing is uploaded.

Target file size

or an exact sizeKB

More optionsJPEG

Save as

Quality

Finds the highest quality that fits the target at these dimensions.

Open a photoDrop, paste or choose one.
Set the sizeType it, or pick a common size.
DownloadSee the file size before you save.

Processed on your deviceNo watermark. No signup.

Resize an image to 500 KB, before and after: a photo of green hills under a cloudy sunrise (2400 × 1600, 431.4 KB JPG), and the same photo compressed to under 500 KB, now 2400 × 1600, 494.1 KB JPG.

Start with your original image, preview the automatic quality adjustment, and download when the result suits your needs. Keep the dimensions or lower them for a smaller output. Your photo stays in your browser, with no signup.

What to expect at this size

These are measured figures, not estimates. Five photographs were run through this page's own engine and the results written down.

The range is what varies between an easy photograph and a hard one: a flower against a blurred background compresses far better than a street full of signage.

File size produced: 473.7 KB to 499.8 KB
Quality it settles on: 89 to 96
Photos that hit the target: 5 of 5
Photographs used: 5
Measured on: September 23, 2026

Why do forms ask for this size?

Choose 500 KB when you want a smaller attachment or your destination names this limit. For several attachments, check their combined size.

For a web page, also match the image dimensions to its display size; a file size target alone does not determine loading performance.

An unchanged image frame beside a file-size meter with a 500 KB target. — The 500 KB target is a limit, not a guaranteed result for every image.

What is the difference between resizing and compression?

The main difference between resizing and compression is the measurement you change. Resizing changes width and height in pixels. Compression reduces file size in bytes.

A photo can have the correct dimensions and still exceed an upload limit, so check both requirements.

A large landscape frame becomes smaller when resized; two equal-sized frames illustrate compression without changing dimensions. — Resize changes the dimensions. Compression changes how the pixels are stored.

If you need both, set the dimensions first and then adjust quality or the file size target. Work from the original and download once to avoid repeatedly recompressing a saved JPEG.

PNG has no quality setting, so a PNG over the target is reduced to fewer colours instead, keeping as many as fit. The meter shows the count.

Screenshots and graphics usually survive this with no visible change. A photograph needs many colours, so bands of flat colour can appear at a small target, and JPEG is then the better format.

What happens to your photo?

Your selected photo is processed in your browser, without an image upload to a server. The page may download code and codecs needed for editing.

Save your result before closing the tab; unsaved edits are kept in memory rather than in an online account.

Common questions

Is 500 KB small enough to email?

A 500 KB photo is a relatively small attachment, but the limit applies to the whole message and depends on the provider.

Check the combined size when sending several photos, and use a smaller target if your message is rejected.

Can I keep the original dimensions at 500 KB?

The tool keeps your chosen dimensions while searching quality. Whether that reaches 500 KB depends on the image.

If the result remains over the target, reduce the width only as far as your destination’s requirements allow.

Last updated: September 23, 2026