OptiConverter

Compress images online

Create a smaller JPG or WebP image by adjusting its quality. Common image compression runs in your browser.

or drag and drop files here. Up to 25 MB each.
Convert to
Temporary files removed after responseSecure processingNo signup

Explore more free converters

Compress images online

Image compression helps prepare pictures for websites, email, and sharing. Choose a supported output format and set the quality balance between smaller file size and image detail. The original upload is not changed.

Why use this image compressor?

  • Create a smaller JPG or WebP copy without modifying the original upload.
  • Adjust quality to balance file size against visible image detail.
  • Compare the downloaded result with the source before replacing an image asset.

JPG vs WebP compression

FeatureJPGWebP
Quality controlAdjustable lossy qualityAdjustable lossy quality
TransparencyNot supportedSupported
CompatibilityVery widely supportedModern browsers and many apps

How to use this image compressor

  1. Choose a supported file from your device or drag it into the upload area.
  2. Select an available output format, then start the conversion.
  3. Download the converted file when processing is complete.

Frequently asked questions

How do I reduce an image file size?

Upload the image, choose JPG or WebP, and adjust the quality slider before converting. Lower quality generally creates a smaller file.

Will image compression change my original?

No. The converter creates a new downloadable file and does not overwrite your original image.

Is this tool free to use?

Yes. The converter is free to use and does not require an account.

Can I convert several files at once?

The tool processes one uploaded file per conversion. Run each file separately.

How large can my upload be?

The server accepts uploads up to 50 MB. Common browser-based image conversions are limited to 25 MB and 40 megapixels.

How are uploaded files handled?

Server conversions use temporary files that are removed after the response finishes. Browser image conversions run locally; hosting logs and optional OCR providers are controlled by the site operator. See the privacy page for details.