FREE TOOL · ON YOUR DEVICE
Free synthesized sound effects
Create a beep, whoosh, impact, synthetic rain, riser or click with digital synthesis. Choose duration, volume and variation, listen to the result and download WAV. It does not interpret prompts or use AI or recordings.
- Free with an account
- 0.1 to 15 second WAV
- Local synthesis, no AI
- Choose a preset
- Adjust and listen
- Download WAV
HOW TO USE IT
Three steps.
Choose a preset
Select one of the six synthesized sounds.
Adjust and listen
Choose 0.1 to 15 seconds, volume and a numeric variation. Press Create sound and use the player.
Download WAV
Save the mono 44.1 kHz WAV file for your audio or video editor.
NEXT STEP
Keep going with these tools
Synthesized sounds: common questions
Can it generate any sound from a description?
No. There are six presets made with oscillators and noise. It uses no AI, voices or recordings; rain is a synthetic approximation.
What does variation change?
It changes the noise in presets that use it. The same settings and variation produce the same sound; the pure beep does not change.
What are the limits?
One mono 16-bit 44.1 kHz WAV, 0.1 to 15 seconds long. Maximum volume leaves headroom before clipping.
Is the sound sent to or stored on a server?
No. The sound is calculated in your browser and is not sent to or stored on any server. You can check it by going offline after the page has loaded.
Is it really free?
Yes. You can try it before signing up; to download the result we ask for a free account, with no subscription. Your free account comes with 30 welcome uses; after that, each use costs 1 credit (top-ups from US$1), and they are unlimited with Basic or Pro. It never adds a watermark.
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WHEN YOU WANT TO CREATE
Create voices and narration with AI.
Cocuyo’s Studio brings 30+ AI models for image, video and voice together. You see the credit cost before generating, and credits never expire.