Optimize Image

Compress Image

Shrink an image by re-encoding it as WebP or JPG at a chosen quality.

Image

Choose a file to convert. It's processed locally — never uploaded. Tip: add several files to convert them all at once.

Settings

Output

Result appears here after you select

{ } How to use

  1. Choose the image.
  2. Pick WebP or JPG, and a quality. 70 is the default and usually a good trade.
  3. Select Process, then download the result.

{ } How it works

Compress Image works on the file you upload. Adjust the options, then select Process ▸ and it runs entirely in your browser — nothing is uploaded to a server — then shows the result in the Output panel.

Inputs

  • Image — upload a file (image/png,image/jpeg,image/webp,.png,.jpg,.jpeg,.webp); it is read locally in your browser
  • Format — choose one — WebP, JPG (default: WebP)
  • Quality (1–100) — a value (default: "70")

Output

A downloadable WEBP file — use the Download button in the Output panel.

{ } Common uses

  • Get an image under an upload limit.
  • Cut page weight by re-encoding photographs at a sensible quality.
  • Reduce several images before attaching them to an email.

{ } Limitations

  • This re-encodes at the quality you pick and does not examine the image to find a good setting. One that was already compressed hard will lose more quality without saving much, because you are encoding an encode.
  • The saving is measured against the file you uploaded, and compressing an already-small file can produce a larger one — in which case the figure shows zero rather than a negative number.
  • Only the quality changes. The pixel dimensions are untouched, and for a large photograph resizing first usually saves far more than quality alone.

{ } FAQ

Is my data uploaded to a server?

No. Everything runs locally in your browser — your files never leave your device.

Can I process more than one file at once?

Yes — add several files and they’re all processed and downloaded together as a ZIP.

Is this tool free?

Yes — it’s completely free and needs no sign-up.

WebP or JPG?

WebP, unless something in your chain will not accept it: at the same visual quality it is meaningfully smaller than JPEG, and every current browser reads it. Choose JPG for maximum compatibility with older software and upload forms.

{ } Guides