Convert video

Choose the target format and drop your files. When the codecs already fit, the streams are copied into the new container in seconds; otherwise only what's needed is re-encoded.

Frequently asked questions

What does “no re-encoding” mean?

Containers like MP4, MOV and MKV are just wrappers. If the video and audio inside are compatible with the target, Toolula moves them into the new wrapper unchanged — fast and without any quality loss.

Is there a file size limit?

No fixed limit. The video is read in small slices and the result is streamed to your disk, so even multi-gigabyte files work without filling up memory.

Is my video uploaded to a server?

No. The file is read and written inside your browser tab using WebCodecs — nothing is uploaded, there is no account and no watermark. Once loaded, the page also works offline.