Video & audio studio
Trim, shrink and convert video, pull out the audio as WAV, grab still frames, or make a GIF. It uses your browser's own media engine, so nothing is uploaded and no files leave this tab. What you can open depends on your browser (WebM and MP4 usually work).
Trim & compress video
Re-encodes the selected range. This plays the clip in real time, so a one-minute clip takes a minute.
Audio to WAV
Decodes the sound of the selected range to an uncompressed WAV file. Works for audio files too.
Still frame
Saves the picture at the playhead.
Animated GIF
Turns the selected range into a looping GIF (keep it short, 15 seconds or less works best).
Browsers record WebM natively (and MP4 in some, such as Safari and recent Chrome). Files saved this way may not show a duration in some players until opened, and very long or very large videos are limited by your device's memory and speed. This is not a full video editor; for multi-track editing or exotic codecs use a desktop tool.