01
Add your audio
Drag in an audio file — MP3, M4A, WAV, OGG, FLAC, or AAC (a video file works too). The file is read locally; nothing is uploaded.
Audio → audio
Online audio converter — MP3, M4A, and WAV.
An online audio converter to change MP3 to WAV, M4A to MP3, or WAV to MP3 and download the result — no sign-up, nothing uploaded.
This audio converter changes a file from one format to another entirely in your browser: pick a file, choose an output format (MP3, M4A, or WAV), and download the converted audio when it is ready. Got a file in the wrong format? Drop it in, choose the part you need, and convert it. Your audio never leaves your device — it's decoded and re-encoded right here in the page, with nothing uploaded to a server.
- No upload
- Runs 100% in your browser.
- MP3 · M4A · WAV
- Convert to the format you need.
- Trim as you go
- Convert just the range you want.
How it works
Three steps to convert an audio file.
02
Pick a range & format
Widely compatible MP3 audio. AAC audio in an M4A file. Uncompressed WAV audio; conversion may alter the source signal.
03
Convert & download
The audio is decoded and re-encoded in your browser. Play it right on the page to check it, then download the file to your device.
Output formats
Convert to MP3, M4A, or WAV.
MP3 — Widely compatible MP3 audio.
M4A (AAC) — AAC audio in an M4A file.
WAV — Uncompressed WAV audio; conversion may alter the source signal.
Widely compatible MP3 audio. AAC audio in an M4A file. Uncompressed WAV audio; conversion may alter the source signal.
Why use it
Private and fast.
Nothing is uploaded — your audio is processed entirely on your device, so it stays private.
Convert just the part you need by setting a start and end before you convert.
No account, no watermark, no install — it runs in the browser you already have open.
Need the words, not just the file?
Turn the audio into notes and a transcript.
If you want the words, not just a different format, Video to Notes can transcribe an audio or video file and write a summary, key points, and a timeline you can download. For YouTube links and longer videos, the Chrome extension does it right in your browser.
- Full transcript plus an AI summary
- Key points and a timeline
- Export to Markdown, PDF, or HTML
FAQ
Audio converter questions
How do I convert an audio file?
Drop an audio file onto the box at the top of this page or choose one. Pick the part you want and an output format (MP3, M4A, or WAV), then select Convert audio. The audio is re-encoded into the chosen format in your browser and offered as a download — you can preview it on the page first.
Is my audio uploaded to a server?
No. The file stays on your device. It is decoded and re-encoded entirely in your browser — nothing is uploaded, and the converted audio is returned straight to you as a download.
Does converting audio lose quality?
Widely compatible MP3 audio. AAC audio in an M4A file. Uncompressed WAV audio; conversion may alter the source signal.
Which formats can I convert between?
Widely compatible MP3 audio. AAC audio in an M4A file. Uncompressed WAV audio; conversion may alter the source signal.
Is there a length or file-size limit?
There is no artificial duration or source-size limit. Everything still runs inside your browser, so extremely long or large files depend on your device memory and may take longer.
Do I need to sign up?
There's no sign-up. Because everything runs in your browser, there's no usage limit on converting audio.
Try it now
Convert your audio file.
Audio is converted on your device. Output quality and size depend on the source and format. Processing time varies.