Timestamped SFX mixer

Add SFX to Video

Place a short sound effect at specific timestamps in a video and export locally.

Sound effect workspace

Upload a short effect, enter timestamps, and mix it with the video audio.

Loading local video engine...

Sound effect file

SFX timestamps

Separate timestamps with commas, spaces, or new lines.

Effect duration

SFX gain dB

No. The video, audio, and export work stay inside your browser.

No. Exports are clean and watermark-free.

V1 uses one effect file placed at multiple timestamps. Use separate exports for different effects.

This browser mixer expects an existing audio track. Add silence or audio first if the export fails.