ConvertX

Compress WebP

Compress WebP files on your own device

WebP is already efficient, but files exported at maximum quality or in lossless mode can still be much larger than they need to be. ConvertX recompresses them on the device.

Coming soon to Google PlayDesktop downloads

The two modes for WebP

Smaller files (lossy)

"Smaller files" re-encodes at the preset's quality. Good for WebPs exported at quality 100 or in lossless mode by a design tool.

Exact quality (lossless)

"Exact quality" recompresses the WebP losslessly; the saving depends on how the original was encoded.

How to compress WebP files in ConvertX

  1. 1

    Open Image Compressor

    On the Home screen tap Image Compressor.

  2. 2

    Select your WebP files

    Tap "Select image files" and pick the WebP images. On desktop you can drag them in.

  3. 3

    Pick a mode

    Choose "Smaller files" (lossy, with the Light, Balanced, Strong or Maximum preset, or a custom quality) or "Exact quality" (lossless where the format allows).

  4. 4

    Check the estimate

    The app estimates the result size on one file before you run the batch, so you can adjust the preset first.

  5. 5

    Optional: maximum width

    Set a maximum width to resize large images; smaller images are left as they are.

  6. 6

    Start and collect

    Tap "Compress N images". The Queue runs the batch; the summary shows the total saved and View Library opens the results.

Tips

Nothing is uploaded

Compression runs on the device; originals are never modified. Location and camera details are removed unless you turn on "Keep photo details". See the guide to compressing without losing quality for how the presets compare.

Frequently asked questions

Will compressing a WebP lose transparency?

No.

Should I compress or convert to AVIF?

Converting to AVIF usually saves more than recompressing WebP, if the destination supports AVIF.

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