FormatOwl.
Credits & pricing

Convert video

Batch convert MP4, MOV, MKV and WebM videos. Adjust codec, resolution and frame rate, preview the output and download your files.

01

Upload

Drop your files here

MP4 · MOV · MKV · WEBM

Up to 20 files per batch · 1.0 GB per file

02

Settings

Choose a format to get started. Use advanced conversion to fine-tune the output.

Converts the main video and default audio track. Extra tracks, subtitles and attachments are excluded. SDR only; the picture is never enlarged.

Estimated cost: Choose a file to estimateRemaining —
Indicative estimate · Full price unverified

Based on size, duration, pixels, pages and settings. Batches show a total. ≈ is indicative; + means only part of the cost is included. The server quote after analysis takes precedence.

Resource budgets are not verified prices. Confirm a maximum before paid processing; unused reservations are returned.

View credits and billing rules

Private files. Automatically deleted after 24 hours, or delete them whenever you like.

Formats and limits

Input
MP4 · MOV · MKV · WebM
Output
MP4 · MOV · MKV · WebM

Up to 1 GiB per file and 20 files per batch. Conversion output is limited to 4 GiB per file.

How to use this tool

  1. Choose up to 20 supported files. Every file in the batch uses the same settings.
  2. Adjust the settings and start processing. Keep the page open until uploading finishes.
  3. Preview the results, download individual files, or create a ZIP of successful results.

Settings and results

MP4 with H.264 is the default. WebM uses VP9. Conversion processes the main video and default audio track; extra tracks, subtitles and attachments are not copied. SDR only; HDR is rejected.

File storage and deletion

Files are uploaded and processed on the server. Originals and results are stored privately and accessed through their account or browser session; downloads use short-lived links. By default, files expire 24 hours after upload and are removed by the cleanup process. You can delete them earlier in your workspace. The current local default allowance is 20 uploaded files per 24 hours.

Read the usage and data guide

Common questions

Is conversion just a filename change?

No. The video is decoded and encoded into the selected format. This can change quality and file size, so keep your original and compare playback.

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Helpful guides