Audio Converter
Convert audio between MP3, WAV, FLAC, AAC, OGG, and OPUS formats using the Web Audio API.
Drop your audio file here or browse files
MP3, WAV, FLAC, AAC, OGG, M4A, OPUS, WMA supported
ℹ️ Tip: Browser-based audio conversion works best for WAV and OGG outputs. For lossless FLAC encoding, output quality is dependent on your browser's Web Audio API support.
How to Convert Audio Files
- Select your desired input and output formats.
- Upload your audio file by dropping it onto the upload area or clicking Browse.
- Adjust bitrate, sample rate, and channel settings as needed.
- Click Convert Audio, preview the result, then download.
Audio Format Comparison
| Format | Type | Best For |
|---|---|---|
| MP3 | Lossy | Music, podcasts, universal compatibility |
| WAV | Lossless | Studio work, editing, archiving |
| FLAC | Lossless | Audiophile listening, archiving |
| AAC | Lossy | Apple devices, streaming, better quality than MP3 at same size |
| OGG | Lossy | Open-source apps, game audio, web |
| OPUS | Lossy | VoIP, voice recording, web streaming |
Frequently Asked Questions
What's the difference between lossy and lossless audio?
Lossy formats (MP3, AAC, OGG) compress audio by permanently removing data the human ear is less likely to notice. Lossless formats (WAV, FLAC) preserve every bit of the original recording — ideal for archiving or professional work.
Can I improve audio quality by converting to FLAC?
No. Converting a lossy MP3 to FLAC does not restore lost quality — it simply stores the already-compressed audio in a lossless container. For best quality, always work from the highest-quality source available.
What bitrate should I use for MP3?
192 kbps is a good balance for most listeners. 320 kbps is near-transparent for the highest quality. 128 kbps works fine for voice and casual listening where file size matters more.
Is my audio file kept private?
Yes. All processing happens in your browser via the Web Audio API. Your audio never touches any server.
Common Audio Conversion Use Cases
Podcasters
Export WAV recordings from your DAW and convert to MP3 for publishing on Spotify, Apple Podcasts, and RSS feeds.
Game Developers
Convert sound effects and music to OGG Vorbis — the preferred format for Unity, Godot, and most web game engines.
Musicians
Archive recordings in lossless FLAC while distributing streaming-ready AAC or MP3 files to fans and labels.
Mobile Users
Convert audio to AAC or OPUS for smallest file size without sacrificing too much quality — great for phone storage.
Frequently Asked Questions
Which audio format should I use?
For sharing and compatibility, MP3 at 320kbps is the safe choice. For the best quality-to-size ratio, use AAC. For archiving, use FLAC or WAV. For web audio, use OGG or OPUS.
Will converting between formats reduce quality?
Converting between lossy formats (e.g. MP3 to AAC) always involves some quality loss. For the best results, convert from the highest-quality source you have, ideally a lossless format like FLAC or WAV.
Why can't I convert to FLAC or AAC?
Browser-based audio conversion is limited to formats supported by the Web Audio API. MP3, WAV, OGG, and OPUS are supported natively. FLAC and AAC output require native app support. We recommend Audacity (free) for these conversions.
Are my audio files uploaded to a server?
No. All conversion happens in your browser using the Web Audio API. Your files never leave your device.
What is the maximum file size?
There is no strict limit, but very large files (over 100MB) may be slow to process. For large files, a desktop application like Audacity or VLC may be faster.