Skip to main content
Formatza
All Tools
Back to all tools

WebP to WebM

Convert WebP files to WebM individually or in batches with clear download states.

1
Upload
2
Configure
3
Convert
4
Download

Convert one WebP or batch convert up to 500 WebP files to WebM.

Choose a file to get started
Drag and drop a supported file here, or press Enter to browse your device.

Related tools

Ready tools are shown first.

WebP Maker

Convert one image or batch convert up to 500 files to WebP directly in your browser.

WebP to JPG

Convert one WebP or batch convert up to 500 WebP images to JPG.

WebP to PNG

Convert one WebP or batch convert up to 500 WebP images to PNG.

WebP to GIF

Convert one WebP or batch convert up to 500 WebP files to GIF.

WebP to MP4

Convert one WebP or batch convert up to 500 WebP files to MP4.

WebP to MOV

Convert one WebP or batch convert up to 500 WebP files to MOV.

Tool guide

WebP to WebM Batch Converter Online

Convert one WebP file or batch convert up to 500 WebP files to WebM directly in your browser. Formatza uses a browser-first workflow for this tool, so supported files can be processed without a server upload step. WebM output is useful for browser-friendly animated or video-style workflows.

Steps

How it works

  • Choose one WebP file or select multiple WebP files for batch conversion.
  • Review the previews, file list, and available output settings.
  • Run the conversion to create real WebM output files in your browser.
  • Download one file, individual batch outputs, or all successful files as a ZIP.
Highlights

Key features

  • Supports single-file and bulk image conversion in one workflow.
  • Batch convert up to 500 files at once.
  • Processes files sequentially in the browser for better stability.
  • Shows per-file status, output size, and download actions.
  • ZIP download is available after successful batch conversion.
Use cases

Common uses

  • Convert many images for websites, product pages, or content libraries.
  • Prepare folders of graphics for upload requirements.
  • Create compatible copies without installing desktop conversion software.
  • Handle repeated format conversion tasks faster than one-by-one tools.
Notes

Limitations to know

  • Browser support for decoding and encoding can vary by format and device.
  • Very large files or large batches may take longer and use more memory.
  • Metadata, color profiles, animation timing, or transparency can change depending on the output format.
  • Files that fail conversion are skipped from the ZIP so successful outputs remain downloadable.
FAQ

Frequently asked questions

5 answers

Can I convert multiple WebP files at once?

Yes. Select up to 500 supported WebP files and convert them to WebM in one browser-based batch.

How many files can I batch convert?

You can select up to 500 files at a time. Large batches may take longer depending on file size and device performance.

Are my files uploaded to a server?

No server upload step is used for this browser-first converter. Supported files are processed locally in your browser.

Is bulk conversion free?

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

Can I download all converted files together?

Yes. After a batch completes, download successful outputs individually or as a ZIP file.