Audio Trimmer
Cut and trim audio files with waveform visualization
Upload Audio File
Supports MP3, WAV, OGG, FLAC, AAC, M4A
Suggested Next Steps
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How to Use
Upload Your File
Drag and drop your file or click to browse. Your file stays in your browser.
Adjust Settings
Configure options to get exactly the result you need.
Download Result
Process and download your file instantly — no waiting, no server upload.
Why Use This Tool
100% Free
No hidden costs, no premium tiers — every feature is free.
No Installation
Runs entirely in your browser. No software to download or install.
Private & Secure
Your data never leaves your device. Nothing is uploaded to any server.
Works on Mobile
Fully responsive — use on your phone, tablet, or desktop.
Your Files Stay Private
This tool processes your files entirely in your browser. Nothing is uploaded to any server — your data never leaves your device.
- No server upload — 100% client-side processing
- No data stored — files are discarded when you close the tab
- No account required — use instantly without signing up
How to Trim Audio Files in Your Browser
Key Takeaways
- Audio trimming removes unwanted sections from the beginning or end of a clip without re-encoding the entire file.
- The Web Audio API decodes audio into raw PCM data, enabling precise sample-level trimming in the browser.
- All processing happens locally — your audio files are never uploaded to any server.
Trimming audio is one of the most common editing tasks. Whether you need to remove silence from a recording, cut a clip to a specific length, or extract a section from a longer file, a browser-based audio trimmer lets you do it instantly without installing software. This tool decodes your audio using the Web Audio API and lets you select the exact portion to keep.
384 kHz
Max sample rate supported
Common Use Cases
Podcast Episode Editing
Remove dead air, coughs, or false starts from the beginning and end of podcast recordings before publishing.
Ringtone Creation
Select a 30-second section from a song to create a custom ringtone or notification sound for your phone.
Sample Preparation
Isolate specific drum hits, vocal phrases, or instrument loops from longer recordings to use as samples in a DAW.
Voice Memo Cleanup
Trim voice memos or lecture recordings to contain only relevant content, reducing file size and making playback quicker.
Audio Trimming Tips
Zoom into the waveform at cut points to find zero-crossing points, which prevent audible clicks at edit boundaries.
Preview your selection before exporting to ensure you haven't cut into the content you want to keep.
For speech, leave about 0.5 seconds of silence at start and end for a natural listening experience.
Export in WAV for lossless quality, or MP3 for smaller file sizes suitable for sharing online.
All audio processing is performed entirely in your browser. Your audio files never leave your device and are not uploaded to any server.