NotebookLM Podcast Trimmer
Trim intro/outro branding from NotebookLM Audio Overview podcasts. 100% browser-local, audio never uploaded.
Drop a file to begin
MP3 · M4A · WAV · OGG · local
NotebookLM Podcast Trimmer — Features
Trim intro & outro
Multiple audio formats
100% browser-local
The NotebookLM Audio Trimmer is designed to cut start and end segments from NotebookLM Audio Overview podcasts using the trim values you choose. It processes audio files locally in your browser with FFmpeg WebAssembly, defaults to trimming 5 seconds from the end, and lets you adjust start and end seconds for files with different branding lengths. Your audio is never uploaded to a server.
How to Use
- Upload your NotebookLM Audio Overview exported audio file
- Adjust the start and end trim seconds if needed, then run the browser-local trim
- Download the processed audio; the tool tries to copy the audio stream directly
Why Choose This Tool
- Configurable trimming — Uses your selected start and end seconds for different intro and outro lengths
- Format Support — Supports mainstream audio formats including MP3, M4A, WAV, OGG
- Direct stream trim — Uses FFmpeg codec copy to avoid unnecessary re-encoding
Related Tools
FAQ
Audio CleanerFAQ
What is NotebookLM Audio Overview?
NotebookLM's Audio Overview generates podcast-style audio conversations from your notebook content, typically with branded intro and outro segments.
Will it affect audio quality?
The tool uses FFmpeg codec copy to trim the audio stream where possible, reducing unnecessary re-encoding. Compatibility depends on the source format and cut points.
Is it safe?
All processing happens locally in your browser. Your audio files are never uploaded to any server.