Audio Beep/Bleep Generator
Censor specific words or sections of an audio with a beep, with exact control over start and end. 100% in your browser.
Drag your audio here or click to select
MP3, WAV, OGG, FLAC, M4A, AAC · no artificial size limit
Built by
Miguel Ángel Colorado Marin (MACM)
Built by
Miguel Ángel Colorado Marin (MACM)
Full-Stack Developer · Guadalajara, España
I develop web apps, digital tools and full projects — from design to deployment.
The beep generator censors specific words or sections of an audio by overlaying a tone at the exact moment you choose, just like it's done on radio or TV. Upload your MP3, WAV, OGG, FLAC, M4A or AAC file, play the audio and pause where you want to censor, press "Add range" to mark that point (and fine-tune the start and end down to tenths of a second if needed), repeat for each word or part you want to cover, choose the beep frequency and whether the original audio should be silenced under the tone or play in the background, and download the result. All processing runs with FFmpeg compiled to WebAssembly inside your own browser.
Features
- ✓Multiple censorable ranges per audio
- ✓Adjustable beep frequency
- ✓Mute or keep the original in the background
- ✓Preview the result before downloading
- ✓100% in browser, no uploads
How to add a beep to an audio file?
- 1
Upload your audio
Drag the file or click to select it.
- 2
Mark the ranges
Play, pause where you want to censor and press "Add range". Repeat for each word.
- 3
Adjust the frequency
Choose whichever beep tone you prefer.
- 4
Apply and download
Listen to the result in the player and download it with one click.
Frequently asked questions
Is my audio uploaded to a server?
No. Everything runs with FFmpeg compiled to WebAssembly inside your browser. The file never leaves your device.
Can I censor several words in the same audio?
Yes, you can add as many ranges as you need, each with its own start and end.
Can the original word still be heard under the beep?
By default no, the original audio is muted during each range. You can turn this off if you prefer it audible in the background mixed with the beep.
What formats does it support?
MP3, WAV, OGG, FLAC, M4A and AAC. The result downloads in the same format as the original file.
Related tools
Embed Audio Beep Generator on your site
Add Audio Beep Generator to any web page with a simple iframe. Free, with attribution to miguelacm.es.
<iframe
src="https://miguelacm.es/embed/audio-beep"
width="100%"
height="700"
frameborder="0"
title="Audio Beep Generator — miguelacm.es"
></iframe>