Audio converter & trimmer
Keep the part you want to hear. Convert audio or extract video sound to MP3 or WAV. Trim by start and end time in your browser. Sign in to process and download for free.
- Runs in your browser
- Free with your Montagea account
Sign in to use this free tool
Use your Montagea account to create, copy and download. Processing stays on your device and uses no credits.
Sign in to startHow it works
- 1
Choose an audio file or a video with sound.
- 2
Choose MP3 or WAV and set your time range.
- 3
Convert and download the audio.
Extract sound or keep a shorter recording
Choose MP3 for a compact listening file, or WAV for uncompressed PCM audio. You can extract sound from a video without uploading it, and use seconds to mark a precise section for a voice line or sound effect.
Start 0.25, end 1.25 → a one-second WAV selection.
Give your idea its next scene.
AI generation has separate account and credit requirements.
Good to know
How do I convert M4A or AAC to MP3?
Choose the audio file, select MP3 and convert. Decoding depends on the browser. Changing the extension does not convert the audio; this tool decodes and re-encodes it.
Can I trim audio from a video?
Yes, if the file has a decodable audio track. Enter the start and end times, then export MP3 or WAV. Compressed formats may contain a little encoder padding; WAV is useful for checking exact duration.
Do my files get uploaded?
Your chosen files and entered text are processed in this browser. They are not uploaded to Montagea. Signing in verifies your account. AI tools download models; image-to-prompt downloads its pinned model files from Hugging Face.
Is the download free?
Yes. Sign in with your Montagea account to use these tools, copy results and download files. They cost no credits and add no watermark.