Online Video Editor
Processed on your device

Install & offline

Preparing offline access. Stay connected until it is ready.

After the first online visit finishes caching, you can open the home page and every tool offline, edit local videos and download results. The online music library needs an internet connection; local music works offline. Format support still depends on your browser’s codecs.

The cache stores app resources, not videos, music, logo images or exports. Closing or reloading clears current files and results. If site data is cleared or the browser removes the cache, reconnect to prepare offline access again.

You can also use Install app or Add to Home Screen in your browser menu. On iPhone / iPad, use Safari’s Share menu → Add to Home Screen. If installation is unavailable, you can still use the site in your browser.

All tools
BROWSER VIDEO TOOLS

Add music

Add background music and adjust audio levels
Processed in your browser.

Videos are processed in your browser and never uploaded.
Free to useBatch processingNo registration

How to add music to video

  1. 01

    Select files

    Select or drop one or more videos.

  2. 02

    Choose music and set the volume

    Search, listen to and choose music from the online library, or select a local audio file. Set music and original audio levels and choose whether to loop.

  3. 03

    Download results

    Download each result, or save the batch as a ZIP.

Common questions

Is the original audio kept?

Original audio is kept by default. All mono or stereo tracks are mixed with music into one stereo track. Turning off original audio replaces every original track with music. Surround mixing is not supported; convert to stereo first.

What if the music and video have different lengths?

Music starts at the beginning and is trimmed at the video's end. Short music loops by default; with looping off, the remainder has original audio or silence. Compressed video is copied to preserve picture quality and duration; audio is encoded as Opus.

Can I use the music library offline?

The catalog and downloads need an internet connection. Local music up to 50 MiB can be selected offline. License details from the API appear in settings; when absent, check that you have permission to use the track.

Are my videos uploaded?

No. Videos are processed in your browser without registration. Reloading or closing the page clears your current files and results.

Which formats and file sizes are supported?

Supported containers include MP4, MOV and WebM; codec support depends on your browser. The limit is 500 MiB per file and 1 GiB of source files per batch. Process large files in smaller batches.

Mute a video

How to use

  1. Select videos

    Select or drop files. The limit is 500 MiB per file and 1 GiB per batch.

  2. Choose a tool

    Choose mute, text/logo watermark, stickers, music, cut, crop, canvas or speed for every video. Music can come from the library or a local file, with volume, original audio mixing and looping controls. Stickers have independent time ranges. Join combines the list in order; speed changes also change audio pitch.

  3. Process and download

    Start processing and follow each file's progress. Download results individually or as a ZIP. Changing settings requires processing again.

Videos are never uploaded. Reloading or closing the page clears files and results. Saved presets stay in this browser. Changing language keeps your current files.