Image Compressor

Reduce JPG, PNG, and WebP file sizes with clear quality controls and private browser processing.

Processed locallyNo accountBatch ready

Start with your images

Files are processed on this device and removed when you close or refresh the page.

Local processing: your images are not uploaded to Pixlery.

How to use this tool

1

Add images

Choose one or several static JPG, PNG, or WebP files.

2

Set the balance

Choose quality for JPG or WebP. For PNG, choose Smaller for stronger compression or Lossless when exact visual quality matters.

3

Review and download

Compare file sizes and download one result or a ZIP of the batch.

Built for predictable results

Private by default

Encoding happens in your browser, not on an upload server.

Clear settings

Only controls that affect the selected output format are shown.

Reliable batch processing

One failed file does not stop the rest of your queue.

Frequently asked questions

Does Pixlery upload my images?

No. Supported images are processed locally in your browser. Pixlery does not receive your files.

Will compression change image dimensions?

Not by default. The compressor keeps the original pixel dimensions unless you enable a maximum dimension.

Why is there no PNG quality slider?

PNG compression works differently from JPG or WebP. Pixlery offers Smaller and Lossless PNG modes instead of showing a misleading quality slider.

Why can a result be larger?

Some files are already highly optimized. Pixlery shows the real result so you can keep the original when it is better.

Why did my PNG get larger?

Some PNG files are already highly optimized. Lossless mode may save only a little, and Smaller mode trades some color detail for a smaller PNG. Pixlery shows the real result so you can keep the original when it is better.

What does the JPG background color do?

JPG cannot store transparency. The background color only replaces transparent pixels when you export PNG or WebP as JPG. Images without transparent areas look the same regardless of the color you pick.