How to bleep out words in audio or video
- Choose your file. Open a recording or video from this device. The tool reads a short audio reference, then shows a player and waveform for marking.
- Mark the passage. Play the original and use “Start here” and “End here” around a name, phone number, swear word or other passage. Repeat for every occurrence you want to cover.
- Listen and adjust. Use “Listen” beside each selection to replay the original passage with some surrounding audio. Switch between “Original” and “Bleeped” to hear the current selections with or without beeps at the same playback position. Marks include a small allowance for reaction time; move either edge until the whole word is covered and nearby speech remains clear.
- Export the complete file. Choose “Export bleeped file”. Your browser saves directly to disk or starts the download. The editor keeps your video, waveform and selections in place for further adjustments. Play the saved result and check every edit before sharing it.
The example above covers 5.8–8.4 seconds of a spoken crew schedule. Switch between original and bleeped audio to hear what changes. Your own selections can cover any audible passage; a transcript is not required.
Audio formats and video output
- Input: MP3, WAV, M4A, AAC, MP4, MOV and WebM, subject to the codecs your browser can decode and play. Being able to select a file does not guarantee that its audio can be marked or exported.
- Audio output: M4A containing mono 48 kHz AAC, or Opus in a browser that cannot encode AAC. MP3 and WAV inputs are not exported in their original format. The entire audio track is re-encoded, including unmarked passages; stereo channels are mixed to mono.
- Video output: compatible MP4/MOV files export as MP4 with the supported picture track copied and the edited audio track substituted. The tool does not blur faces, edit subtitles or remove visible text. If the picture track cannot be read, including WebM video, output may contain audio only as M4A.
- Timing: selections are replaced in place instead of being cut out. Later passages keep their position on the timeline. Encoding and container timing can produce a small duration difference, so check lip sync in the exported video.
Use a current Chrome or Edge browser for the most straightforward export path. Safari support depends on the device and available codecs. A browser that cannot encode AAC exports Opus audio instead, which some apps and video editors cannot open. If preparation fails, try a shorter file or convert the source to MP3/M4A for audio or a compatible MP4/MOV for video.
What this audio censor replaces
The selected audio is replaced with a 1 kHz beep. Its level is based on a short reference from the recording, and brief fades soften the joins. There is currently no silence mode, custom sound or adjustable beep frequency.
Everything audible inside a selection is replaced, including music and overlapping speakers. To keep a backing track while covering one voice, edit an isolated voice track first and mix it back into your project. This tool does not separate vocals or remove background noise. For steady hiss or room noise, use audio noise removal.
Marking is manual: there is no automatic profanity detection, sensitive-word list or search across repeated names. It does not depend on transcription language, but you need to understand the recording and review every occurrence. A missed word or a boundary that is too narrow can leave speech audible.
Processing stays on this device, and your media is not uploaded by this tool. Keep the tab open while exporting. Long files can still reach your device’s memory or storage limits, especially when the browser must decode the full source or hold the output in memory. Website usage analytics are described in the privacy policy.
Audio censoring questions
Is it free to censor audio online?
Yes. Manual marking and full-file export are free and do not require an account. Start by choosing your recording.
Can I bleep swear words, names and phone numbers?
Yes, when you mark each passage yourself. The tool replaces the selected sound; it does not identify the words or guarantee that every occurrence has been covered.
Does bleeping remove the original word, or just add a sound over it?
The selected audio samples are replaced rather than mixed with a beep. Listen around both boundaries to make sure the selection includes the whole word, then check the saved file.
Can I censor a video without changing its picture?
For compatible MP4/MOV picture tracks, yes. The picture is copied and the audio is re-encoded. Check the output type before sharing: a source whose picture track cannot be read may produce audio-only M4A. Captions and words shown in the picture need a separate edit.
Can I mute part of a recording instead of using a beep?
This tool currently uses a beep for every selection. It does not create silent gaps or mute an entire track. If you want to change how a voice sounds while keeping the words, use the voice changer.
Does this make a recording anonymous or guarantee platform approval?
No. Other words, the speaker’s voice, captions or visible details may still identify someone. A beep does not guarantee platform approval or monetization. Review the entire result and any accompanying text before publishing.
