Free Online Audio Converter
Convert audio files between MP3, WAV, FLAC, AAC, OGG, WMA, and M4A — completely free with no registration. Whether you need to convert a voice recording, archive music in lossless quality, or make audio compatible with a specific device, FileConvertTool handles it in seconds.
Convert from MP3
Convert from WAV
Convert from FLAC
Convert from AAC / OGG / WMA / M4A
How to Convert Audio Files
Select your conversion — Choose source and target format above.
Upload your audio file — Drag and drop or click to browse. Files up to 200 MB.
Convert — Click Convert. Most audio conversions complete in under 10 seconds.
Download — Save your converted file instantly.
Choosing the Right Audio Format
For everyday listening and sharing, MP3 remains the universal standard. At 256-320 kbps, quality is excellent.
For music production and editing, WAV is essential. Its uncompressed format means zero quality loss during editing.
For archiving a music library, FLAC preserves perfect quality at roughly half the file size of WAV.
For Apple devices, M4A (AAC) is the native format. For broader compatibility, convert M4A to MP3.
For podcasting, MP3 at 128 kbps mono or 192 kbps stereo is the industry standard.
For game development, OGG Vorbis offers good quality at small file sizes with no licensing costs.
Frequently Asked Questions
What is the best audio format for quality?
WAV (uncompressed) and FLAC (lossless) preserve perfect quality. For lossy formats, AAC delivers the best quality per kilobyte, followed by OGG, then MP3.
Can I improve audio quality by converting MP3 to FLAC?
No. Converting lossy to lossless preserves current state but cannot recover already-discarded data. For true lossless quality, start from an uncompressed source.
What bitrate should I use for MP3?
For music: 256-320 kbps. For podcasts: 128 kbps mono. For audiobooks: 64-96 kbps mono.
How do I convert audio from a video file?
Use the Video to Audio Converter to extract audio from MP4, MOV, MKV, AVI, and other video formats.
Is AAC better than MP3?
At the same bitrate, AAC delivers better quality. MP3 has wider compatibility with older devices. For modern devices, AAC is better.