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Online Audio Converter
Convert any audio file to MP3, WAV, M4A, OGG or FLAC — upload a track or pick one from your music and get a file that plays everywhere.
No need to wait — you can start the next one right away.
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Free Audio File Converter: Convert Audio to MP3 and Change the Bitrate
Free online audio converter: change the format of any audio file, convert audio to MP3 and pick the bitrate. No watermarks, no software — convert in seconds.
What This Online Audio Converter Does
- Every popular audio format — MP3, WAV, M4A, AAC, OGG, FLAC, WMA, AIFF, Opus and AMR as input, any main format as output
- Bitrate control — pick 128 to 320 kbps for compressed output — raise it for quality, lower it to reduce audio file size before you upload
- Lossless when you need it — export to WAV or FLAC and the audio stays bit-for-bit intact for editing, mastering and archiving
- Nothing to install — conversion runs on our servers, so a phone browser handles the same files a desktop app would — no software, no account
- Clean files — no watermark and no audio stamp — the same track, in the format you asked for
How to Convert Audio Online
- Upload the audio file you want to convert, or paste a direct link to it.
- Choose the output format — MP3 is the safe universal default, WAV and FLAC keep full quality.
- Set the bitrate for compressed formats: 320 kbps for maximum quality, 128 kbps for the smallest file.
- Press the convert button — the converted audio appears in seconds and stays in your archive for download.
Which Audio Format Should You Choose?
MP3 is the answer for most people: it plays on every phone, laptop, car stereo and web player ever made, and at 256–320 kbps almost nobody can tell it apart from the source. M4A holds AAC audio and is the natural choice inside the Apple world — slightly better sound at the same file size. WAV and FLAC are lossless: WAV is raw and understood by every editor, FLAC compresses roughly in half without touching quality, and both are what archiving and mastering need. OGG is a free open format that games and many web players prefer. The rule of thumb: keep audio lossless while you are working on it, and compress it when you are ready to share. If you need one specific direction rather than a general format change, we also keep dedicated converters for M4A, WAV, OGG and FLAC files.
When You Need an Audio File Converter
- A file that will not open — an old player, a car stereo or an upload form rejects the format — convert the audio and it opens everywhere
- Files too big to send — an uncompressed recording drops to a fraction of its size at a sensible bitrate
- Voice notes and memos — phone recordings arrive in formats editors dislike; converted, they drop into any timeline
- Preparing audio for upload — podcast hosts, learning platforms and messengers each want their own format and bitrate
- Changing quality, not format — re-encode at a higher or lower bitrate to trade size against quality
Frequently Asked Questions
Is this audio converter free?
Yes. There is no registration — new users get starter energy points, and one conversion costs about 2–3 points depending on the length of the track.
Which audio formats are supported?
MP3, WAV, M4A, AAC, OGG, FLAC, WMA, AIFF, Opus, AMR and most other common formats as input, and any of the main formats as output.
Will converting audio reduce the quality?
Converting to a lossless format such as WAV or FLAC keeps the audio exactly as it was. For compressed output, 320 kbps is virtually indistinguishable from the source.
Can I change the bitrate of an audio file?
Yes. Keep the source format and set a different bitrate — that re-encodes the file, so you can push a track to 320 kbps or drop it to 128 kbps to make it smaller.
Is there a watermark or a length limit?
No watermark is ever added. Tracks up to 5 minutes convert by default, and Prime raises that limit for longer recordings.
Related tools
- M4A to MP3 Converter
- WAV to MP3 Converter
- OGG to MP3 Converter
- FLAC to MP3 Converter
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