Remove silence automatically
Select audio or video and AutoTrim trims silent parts for you—on your device.
AutoTrim automatically finds and removes silent parts from your audio and video recordings—on your phone—so you spend less time editing and more time creating.
Stop wasting time cutting silence
Manual silence cutting is slow, boring, and eats hours of editing time. AutoTrim does it for you.
Everything you need to trim dead air
Automatic silence detection, preview controls, and exports—all on your device.
Automatic silence removal
AI finds silent sections and removes them—no manual cutting required.
Audio & video import
Pick audio files or videos; audio is extracted from video on-device.
Adjustable trim settings
Silence threshold and minimum silence duration controls let you tune aggressiveness.
Waveform preview
Preview before export; purple = kept, dim = trimmed.
Built-in player
Play trimmed files with waveform visualization and skip ±10s controls.
History
Search, filter, play, share, and delete trimmed files from one place.
Multiple export formats
Free exports MP3. Pro unlocks WAV and M4A. Import MP4 video for on-device audio extraction.
On-device processing
Your media stays on your device. We do not upload audio or video. Analytics, ads, and the free-tier quota use the network separately — see our Privacy Policy.
Dark / light mode
System, light, or dark appearance—comfortable for late-night editing sessions.
See AutoTrim in action
Home, trim, preview, and history — the full silence-removal flow.
How it works
Four simple steps from raw recording to polished audio.
Choose an audio file or video from your device.
Set how aggressive silence removal should be.
AutoTrim removes dead air automatically.
Preview, save to History, share, or save to device.
Built for creators who hate dead air
What do you edit most often? AutoTrim works for all of these.
Remove awkward pauses
Speed up editing
Clean lecture recordings
Cleaner meeting recordings
Polish quick recordings
Cut the silence. Keep the sound.
Free: 30 minutes per month and MP3. Pro: unlimited minutes, WAV/M4A, and no ads.
No account required
- ✓ 30 min / calendar month
- ✓ MP3 export
- ✓ Ads (rewarded before each trim)
- ✓ On-device processing
Billed monthly · Cancel anytime
- ✓ Unlimited trimming
- ✓ MP3, WAV, and M4A
- ✓ No ads
- ✓ Advanced detection
About $0.92/month · Billed annually
- ✓ Unlimited trimming
- ✓ MP3, WAV, and M4A
- ✓ No ads
- ✓ Advanced detection
Pay once · Keep forever
- ✓ All Pro features
- ✓ No recurring fees
- ✓ Future updates included
Prices in USD. Google Play may show local currency. Subscriptions via Google Play and RevenueCat.
Loved by creators
Real time savings from podcasters, vloggers, and students.
★★★★★"In just two weeks, my podcast editing dropped from 4 hours to under 90 minutes with AutoTrim Pro."
★★★★★"I trimmed a 45-minute vlog in under 10 minutes. The preview controls are exactly what I needed."
★★★★★"Lecture recordings used to take hours to clean up. Now I export polished audio before every class."
Your media stays on your device
Audio and video are processed locally. We still use the network for ads, analytics, crashes, subscriptions, and the free-tier quota. No Google sign-in.
AutoTrim does not upload your audio or video files to servers.
History and trimmed files stay on your phone until you delete or share them.
Free minutes use a hashed device ID. Firebase Analytics/Crashlytics, AdMob, and RevenueCat receive usage or purchase data as described in our Privacy Policy.
Read the full policy, then use the same URL in Google Play. autotrim.pages.dev/privacy-policy.html
FAQ
Quick answers before you download.
What file formats does AutoTrim support?
Import MP3, WAV, M4A, and MP4 (video). Export trimmed audio as MP3 (free) or MP3, WAV, and M4A (Pro). Video audio is extracted on-device before trimming. AutoTrim does not export MP4 or MOV video.
Does AutoTrim upload my files?
Your audio and video are processed on your device and are not uploaded. The app does use the internet for Firebase Analytics and Crashlytics, AdMob ads (free users), RevenueCat / Google Play purchases, and the free-tier quota server (a hashed device ID and minutes used).
Can I preview before exporting?
Yes. The waveform preview shows what will be kept (purple) and what will be trimmed (dim) before you export.
What's included in AutoTrim Pro?
Unlimited trimming, MP3 / WAV / M4A export, advanced silence detection controls, and no ads. Plans: $0.99/month, $10.99/year, or $20.99 lifetime (USD).
Is there a free version?
Yes. No Google account is required. Free includes 30 minutes of original audio per calendar month, MP3 export, and ads (including a rewarded ad before each trim).
Where is the privacy policy?
The hosted policy for Google Play is https://autotrim.pages.dev/privacy-policy.html. The same Analytics, Crashlytics, quota, AdMob, and RevenueCat details are in the app.
Who is AutoTrim for?
Podcasters, video creators, students, professionals with meeting recordings, and anyone who records voice notes and wants to remove dead air fast.
Ready to cut the silence?
Download AutoTrim and spend less time editing—more time creating.