Drop funny sounds onto any video: boings, truck horns, applause, drum rolls, burps, sad trombones and 30+ more. Tap a sound to hear it, add it to the timeline, drag it into place, and export a real MP4. Everything runs in your browser; your video never leaves your device.
Drop a video here or click to pick one
Tap a tile to hear the sound. Hit + Add to drop it wherever the playhead is, then drag its marker on the timeline to fine-tune the timing.
The export plays your video through once in real time while recording the new soundtrack, then converts to a standard MP4. A 30-second video takes about 30 seconds plus a moment to convert.
Some videos are one boing away from perfect. The clip of your kid's tower of blocks wobbling begs for a drum roll; the moment it topples is either a sad trombone or a huge crash depending on the mood you want. This tool gives you a whole library of classic sound effects and a simple timeline to place them on, so a plain phone video turns into something the whole family laughs at.
Load a video, tap sounds to audition them, and add the ones you like. Every placed sound becomes a draggable marker on the timeline, and each one has its own volume and speed controls, so the same horn can be a distant honk in one spot and a wall-shaking blast in another. Press play and the effects fire in sync with the picture; when it all sounds right, one click renders a normal MP4 you can send anywhere.
Every sound is generated by your browser with math rather than shipped as a recording, which keeps the page fast and means there is nothing to license, nothing to fetch, and nothing that ever expires.
Load your video, tap any sound in the library to hear it, then hit + Add to drop it at the playhead. Drag the marker left or right to fine-tune the timing, press play to preview everything in sync, and export. The finished video downloads as a standard MP4 with no watermark.
That is exactly what it is built for. Put a boing on every jump on the trampoline, applause when the puzzle gets finished, a drum roll before the big reveal. Kids also love pressing the sound tiles themselves, which makes this a fun co-editing activity rather than a chore.
No. The video stays on your device from start to finish. Even the sound effects are synthesized inside your browser rather than downloaded from a server, so nothing about your family video touches the internet at all.
A standard, seekable MP4 that plays anywhere and uploads cleanly to YouTube, Instagram, or a group chat. On phones, the Share button sends it straight to another app or your camera roll.
Yes, per sound. Click any marker on the timeline and you get a volume slider from 10% to 200% and a speed slider from half speed to 1.8x. Speed also shifts the pitch, which is half the fun: try a half-speed ghost woo or a double-speed clip-clop.