The export is a bundle of choices.
Media exports combine dimensions, frame or sample rate, codec, bitrate and duration. File size is the result of those choices, not one magic quality switch.
Video, GIF & Audio
Add film grain to a video.
Give a short clip a less clinical, more tactile finish with animated grain, tint, faded blacks and vignette, all rendered locally in the browser.
Colour & finish
Tip: compressed phone video already contains texture. Heavy grain can turn blocky after social upload, so a smaller amount usually feels more cinematic than a very strong overlay.
Private by design: rendering happens locally. Video export uses WebM because browser re-encoding support varies.
Useful to know
Four things worth knowing.
Exporting is not mastering.
A browser utility is good for a focused conversion or edit, but it is not colour grading, audio mastering, motion tracking or a full timeline.
Play the whole thing.
Play the exported file from beginning to end and check picture, sound, crop, timing and orientation.
Match the destination.
Play the export all the way through once. Broken audio, a bad final frame or a mistimed subtitle often hides near the end.