Which formats can it convert to?
For video, ToolGPT writes MP4, MOV, WEBM and MKV. You can keep the resolution as it is or ask for a smaller one, and change the frame rate or bitrate if you have a specific target in mind.
For audio, it can export a file's sound as MP3, WAV, FLAC, OGG, Opus, AAC, M4A or AIFF. That is also the way to pull the soundtrack out of a video: attach the video and ask for the audio as an MP3.
Why convert in a chat instead of a form?
Most people do not know whether they need H.264 or VP9, or what bitrate a file should have. They know what they want to do with it: send it to a colleague on Windows, upload it to a website, play it on a TV. Tell ToolGPT that, and it works out the settings from the file's real details — its length, resolution and current bitrate.
It also remembers the conversation. If the first result is not quite right, say "make it smaller" or "keep the original resolution" and it redoes the job with the change, replacing the earlier result instead of piling up copies.
Where does the conversion happen?
On your computer or phone. ToolGPT uses the browser's built-in video encoders where they are available and a WebAssembly copy of FFmpeg where they are not, so the video file is not uploaded to a server for conversion. The assistant sees the facts it needs — the file's name, length, size and dimensions — to choose settings.
Because the work happens on your device, a long 4K video takes longer on an older laptop than on a new one. A progress bar shows how far along the job is, and you can keep chatting while it runs.