Image Tools

Compress Image to 500 KB

Compress any image down to 500 KB or under automatically, entirely inside your browser.

Private by default Instant results No signup
Image CompressorLive
Drop images or click to uploadPNG, JPEG, GIF, or WEBP · up to 20 at a time
100% private. Your images never leave this device.
No uploads. Compression runs locally — nothing is sent to a server.
Nothing stored. No copies are kept, logged, or shared. Ever.
0 B uploaded · everything runs on this deviceImage · Tofuwebtools.com
Overview

How compressing to 500 KB works

Each uploaded image is redrawn onto a canvas and re-encoded at a quality level chosen automatically to land at or under 500 KB — the tool tests multiple quality levels and picks the highest one that still fits the target, so the result stays as sharp as possible while meeting the size limit. If quality alone can't reach 500 KB, the image is also scaled down slightly and re-tested until it fits.

Because a fixed target size needs a quality dial to work with, the output is always saved as JPEG (or WebP if that was the original format) — PNG sources are converted, since a lossless format can't be quality-tuned down to a specific byte size.

Guide

How to use it

1Drop or upload up to 20 images
2Each one compresses automatically — no settings to pick
3Compare the before/after size for each file
4Download individually, or all at once as a zip
Why it helps

Features & benefits

Compresses automatically to 500 KB or under
Tests multiple quality levels to keep the sharpest result that still fits
Falls back to a slight resize if quality alone can't reach the target
Compress up to 20 images at once, with zip download
100% private — nothing leaves the device

Why this runs entirely in your browser

Compression happens using the browser's own Canvas API to redraw and re-encode the image locally, so the original file never leaves the device — there's no upload to wait on and no server storing a copy.

Common uses

Getting a photo under a file-size limit for an upload form, application, or email attachment, shrinking a screenshot before sharing it, or reducing page weight for a website image.

Frequently asked questions

A few things people usually want to know before trusting the numbers.

In almost all cases, yes. If an image can't be brought under 500 KB through quality and resizing alone, the tool returns its smallest possible result and the file list shows the actual output size.

Hitting an exact target file size needs an adjustable quality level, which PNG's lossless compression doesn't offer — so PNG sources are converted to JPEG (or kept as WebP) to reach the target.

Only if needed. The tool first tries to reach the target through quality alone; dimensions are only reduced slightly, as a last resort, for very small targets on large source images.

Yes, up to 20 at a time — each one compresses automatically as soon as it's added to the queue.

No. All compression happens locally in your browser. Nothing uploaded here is sent to a server, stored, or shared.