How to Bleep Out Words in a Video: CapCut, iPhone, Free

To bleep out a word in a video, find exactly when it's said, silence the audio for that moment, and put a beep sound over the gap. Every editor does this the same way: split the audio at the start and end of the word, turn that piece down to zero, and add a short tone (usually a 1 kHz sine) on a track above. If the video has captions, change the word in them too, or they'll spell out what you bleeped.

Below: how to find the timestamps quickly with a transcript, step-by-step methods for CapCut, iMovie on iPhone and Mac, DaVinci Resolve and FFmpeg (free), when to mute instead of bleep, and what YouTube's advertiser guidelines say about bleeped swearing. More in our video editing how-tos.

The short answer

Find the word's start and end time, split the audio there, set that piece's volume to zero and add a beep of the same length. In CapCut: split the clip around the word (split icon or Ctrl+B), set the middle piece's volume to 0, and add a beep from Audio, Sound effects (search "beep"). On iPhone: CapCut works the same way, or in iMovie detach the audio, split it and turn that piece's volume down. Free on a computer: iMovie (range select with R), DaVinci Resolve or one FFmpeg command.

Key takeaways

Bleeping is three steps in any editor: find the word, mute that moment, add a beep.
Give yourself a little room: start the mute just before the word and end it just after, or the first sound slips through.
A transcript with timestamps finds every word faster than scrubbing a long recording.
Edit the captions too: bleeped audio with uncensored captions doesn't hide anything.
YouTube counts bleeped or muted profanity as obscured, which its advertiser guidelines treat more leniently than spoken profanity.

Disclosure: we make QuickVeed and show how to do this in it, along with other ways. Details about other products come from their public pages, checked in November 2026 and linked at the end.

Step 1: find exactly when each word is said

Most of the time in bleeping goes into finding the words. For a short clip, scrub the zoomed-in waveform, where each word is a visible bump. For anything longer than a few minutes, start from a transcript.

QuickVeed's auto subtitles transcribe a video of up to 3 hours at 1.5 credits a minute (15 credits for 10 minutes). The editor lists every subtitle line with its start and end time, to a tenth of a second, and clicking a time jumps the video there. QuickVeed shows timings per line, not per word. Download the transcript as an SRT file and search it in any text editor: each line comes with its start and end time. Note the line, then find the exact word by ear in your editor, which takes seconds once you know where to look.

How to bleep out words in CapCut

CapCut works the same way in its desktop, web and phone apps:

Move the playhead to just before the word and split the clip (the split icon, or Ctrl+B on a computer). Move to just after the word and split again.
Select the short piece in the middle and set its volume to 0. Because the sound is still attached to the video, this mutes only the audio; the picture keeps playing.
Open Audio, then Sound effects, and search "beep". Drag a beep onto the timeline under the muted piece.
Trim the beep to the same length as the muted piece and lower its volume if it's harsh.
Play it back from a second before the word, then export.

CapCut's own articles describe the split shortcut and finding a beep in Sound effects; its interface changes often, so labels may differ slightly on your version.

How to bleep out words on iPhone

On iPhone, the CapCut app steps above are the quickest, since it has beep sounds built in. With Apple's free iMovie, you can mute the word; iMovie doesn't include a beep sound, so you'd add a beep audio file you've saved to Files.

In iMovie, tap the video clip, tap the Actions button and choose Detach. The sound becomes a separate blue audio clip under the video.
Move the playhead to just before the word, tap the audio clip and choose Actions, then Split. Do the same just after the word.
Tap the short piece in the middle, tap the Volume button and turn it all the way down.
To add a beep, add your beep file from Files at the same point and trim it to fit.

How to bleep out words in iMovie on Mac

iMovie on Mac can lower part of a clip without splitting it. Apple's guide describes it:

In the timeline, hold the R key and drag across the word in the clip. This makes a range selection.
Drag the volume line in the waveform down to the bottom. Only the selected range changes, and iMovie adds a short fade at each edge.
Drag a beep audio file into the timeline at the same point and trim it to the selection.

The automatic fades can let a sliver of the word through, so start the selection a little earlier and end it a little later than you would elsewhere.

How to bleep out words in DaVinci Resolve

DaVinci Resolve is free on Mac, Windows and Linux. On the Edit page:

Select the Blade tool (press B) and click the audio at the start and end of the word. If the audio is linked to the video, the blade cuts the video at the same point too, which does no harm.
Switch back to the Selection tool (A), select the piece of audio and turn its volume down in the Inspector, or disable just that piece with the Enable Clip option in the Clip menu (shortcut D).
Import a beep sound into the Media Pool, drag it onto an empty audio track over the gap and trim it to length.

To avoid cutting the clip, add four volume keyframes around the word and drag the middle two to the bottom. Menu names move between Resolve versions.

How to bleep out words with FFmpeg (free)

FFmpeg does it in one command, with no editor. This mutes two moments (5.2 to 6.0 seconds and 12.4 to 13.1 seconds) and plays a 1 kHz beep in exactly those gaps, keeping the video untouched:

ffmpeg -i input.mp4 -filter_complex "[0:a]volume=0:enable='between(t,5.2,6.0)+between(t,12.4,13.1)'[talk];sine=frequency=1000:sample_rate=48000,volume=0.3,volume=0:enable='not(between(t,5.2,6.0)+between(t,12.4,13.1))'[beep];[talk][beep]amix=inputs=2:duration=first:normalize=0[a]" -map 0:v -map "[a]" -c:v copy -c:a aac -b:a 192k output.mp4

The first part silences the original audio between the timestamps; the second makes a 1,000 Hz tone at 30% volume that is silent everywhere except those moments; amix lays one over the other and stops when the original audio ends. The video is copied, not re-encoded, so nothing is lost. For more words, add another +between(t,START,END) in both places. We ran it with FFmpeg 7.1 on a test file: original sound outside the timestamps, the tone inside.

To mute without a beep, use just the first part:

ffmpeg -i input.mp4 -af "volume=0:enable='between(t,5.2,6.0)'" -c:v copy -c:a aac -b:a 192k output.mp4

For removing whole sections or the entire soundtrack instead, see how to remove audio from a video and how to cut audio.

Muting, bleeping or cutting: which to use

Option	What viewers hear	Best for	Watch out for
Bleep	A tone over the word	Swearing, where the bleep is part of the joke or tone	Too loud a beep is unpleasant; keep it below the voice level
Mute	A short silence	Names, addresses and private details	A silent gap can sound like a glitch; keep it short
Cut the word out	Nothing; the sentence closes up	Mistakes and fillers	Makes a jump cut in the picture; see how to remove filler words
Edit the captions	Same audio; text shows f*** or [bleep]	Every bleeped or muted word	Burned-in captions must be redone from the edited text

For private details, also think about the picture: if the speaker's face is clear, lip readers can still follow the word, so a brief blur or cutaway over the mouth helps. Muting the audio doesn't hide a name written on screen either. QuickVeed's free mute video tool removes the whole soundtrack, which suits B-roll, not single words.

Fix the captions too

If you upload a subtitle file or burn captions in, change the word there too. In QuickVeed's subtitle editor, edit the line (to "f***" or "[bleep]") before you download the SRT or VTT; burned-in captions are drawn from your edited text, at a credit a minute for videos up to 30 minutes.

Does bleeping keep a YouTube video ad-friendly?

It helps. YouTube's advertiser-friendly guidelines say obscured profanity, which includes bleeped or muted words and words covered by symbols or black bars, can earn full ad revenue in the title, thumbnail or video. Profanity at the start of a video or through most of it may limit ads, as can moderate swearing in the title or thumbnail. Stronger profanity in titles or thumbnails, and hateful language or slurs anywhere, get no ads. So the opening seconds and the title and thumbnail are where bleeping matters most.

Frequently asked questions

How do you bleep out a word in a video for free?

Use CapCut's free editor, iMovie on an iPhone or Mac, DaVinci Resolve, or one FFmpeg command: split the audio around the word, mute that piece and add a beep.

How do I bleep out words in CapCut?

Split the clip just before and just after the word, set the middle piece's volume to 0, then add a beep from Audio, Sound effects and trim it to the same length.

How do you bleep out words on iPhone?

In the CapCut app, as above. In iMovie, detach the audio (Actions, Detach), split it around the word, turn that piece's volume down, and add a beep file from Files.

What frequency is the censor beep?

The familiar TV bleep is a 1 kHz (1,000 Hz) sine tone. Keep it a little quieter than the voice so it isn't jarring.

Can I find every swear word automatically?

A transcript gets you most of the way: search it for the word and note the times. QuickVeed gives times per line (in the editor and in the SRT download), so you find the exact word by ear within that line.

Does YouTube demonetize videos with bleeped swearing?

Bleeped or muted profanity counts as obscured under YouTube's advertiser-friendly guidelines and can earn full ads. Strong profanity in titles or thumbnails, or swearing through most of the video, can still limit ads.

Try it with your own video

Find every word you need to bleep from a timed transcript, and fix the captions in the same place. Upload a video, find the lines in the timed transcript, and download edited SRT captions or burn them in. QuickVeed plans start at $18/month, and new accounts get a 14-day trial with 250 credits, no card needed. Sign up or see pricing.

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How to Bleep Out Words in a Video (Free Ways)