Convert Video

Convert Video changes a video's container and codecs in your browser.

Change a video to MP4, WebM or MOV without sending it anywhere.

FREE · NO ACCOUNT · RUNS ON YOUR DEVICE

Files stay on your device

  • MP4broad support
  • WebMweb video
  • MOVQuickTime container
  • Localbrowser processing
In practice

What you can count on

  • 0files uploaded
    • Conversion stays in this tab
    • No account or queue
  • 3output formats
    • MP4, WebM and MOV
    • Choose before starting
  • 1file at a time
    • Clear progress while it works
    • A separate result file
Specification

Convert Video at a glance

Input
One video
Output
MP4, WebM or MOV
Video encoding
H.264 or VP8
Audio encoding
AAC or Vorbis
File size
Limited by device memory
Where it runs
On your device
How to

How to use Convert Video

  1. 1

    Choose a video

    Drop or choose the file you want to convert.

  2. 2

    Pick MP4, WebM or MOV

    Choose the output that matches where you plan to use the video.

  3. 3

    Convert and save

    Keep the tab open while it converts, then download the new file.

Questions

Frequently asked questions

Which format works in the most places?

MP4 with H.264 video and AAC audio is the broadest choice for phones, browsers and messaging apps.

Will conversion make the file smaller?

It may, but size depends on the source and codec. Use Compress Video when the goal is specifically a smaller file.

Is my video uploaded?

No. The file is processed in a browser worker on your device.

Why does conversion take time?

Re-encoding every frame uses your device's processor. Long or high-resolution videos take more time and memory.

Background

A real conversion, inside the browser

The converter decodes the source and writes a fresh video file on your device. Use MP4 for broad support, WebM for the web, or MOV for a QuickTime container.

  • Changing format can require every video frame and audio sample to be decoded and encoded again.
  • The result is a new file. Your original remains untouched.

Full specification

Specification of the Convert Video tool
InputOne supported video file.
OutputMP4, WebM or MOV.
Video encodingH.264 for MP4 and MOV; VP8 for WebM.
Audio encodingAAC for MP4 and MOV; Vorbis for WebM.
File sizeLimited by the memory available to the browser.
Where it runsIn a browser worker on your device.
Next step

Keep going with the same files

All video tools: Video tools on SPOTTOOLS