Audio Converter

Audio formats suit different jobs. WAV and AIFF store uncompressed audio, which is ideal for editing but produces large files. FLAC compresses audio without losing any information, so it is a good choice for archiving. MP3 is lossy, but it plays on virtually every device ever made. M4A (AAC) and Opus are more modern lossy formats that give good quality at small sizes. EaseBowl's Audio Converter moves between them without uploading your files anywhere. Formats you can create. MP3, WAV, FLAC, and AIFF work in every modern browser. Opus (saved as a .opus file) and M4A (AAC) use the encoders built into your browser, so they appear only where the browser provides them. Opus is available in most Chromium-based browsers, while M4A depends on your browser and operating system. If your browser does not support one of them, that button is disabled and the tool says so. Formats you can open. Any audio your browser can decode. MP3, WAV, FLAC, OGG (Vorbis or Opus), and M4A/AAC work in current desktop browsers. AIFF files open only in browsers that can play them, such as Safari, and WMA cannot be read by web browsers at all. The tool tells you when a file cannot be opened. OGG Vorbis can be opened, but the tool cannot save it. Opus is offered instead. Settings. For MP3 you can choose 96 to 320 kbps. For Opus and M4A you can choose a bitrate between 64 and 256 kbps. For WAV, FLAC, and AIFF you can choose 16-bit or 24-bit. For all formats you can keep the original channels or make the audio mono, and either keep the original sample rate or change it to 48, 44.1, 32, 22.05, 16, or 8 kHz. Surround sound is mixed down to stereo. To keep the original sample rate, the tool reads it from WAV, FLAC, MP3, OGG, and AIFF files. If it cannot tell, for example with M4A files, it uses 44.1 kHz. Opus is always saved at 48 kHz. Batch conversion. Add as many files as you like. They are converted one at a time with the same settings, each file shows its own progress and download button, and when two or more are finished you can download them all as one ZIP. Changing a setting after converting resets the results so that files are never downloaded with the wrong settings. Quality. Converting one lossy format to another, such as MP3 to M4A, loses a little more quality each time, so start from the original WAV or FLAC when you have it. Saving an MP3 as WAV or FLAC does not restore quality that was already lost. It only makes the file larger. The tool shows a reminder in both cases. What is not carried over. Tags such as title, artist, and cover art are not copied to the converted file. The tool converts the sound only. It also does not support variable bitrate MP3, and it does not copy a compressed stream without re-encoding. Limits. Audio is decoded into your device's memory before it is converted, so very long files can fail on devices with limited memory. The tool stops with a message for files longer than roughly 35 minutes of stereo audio. Split longer recordings into parts first. Privacy. Your audio is decoded and encoded by your browser and is not uploaded to EaseBowl's servers. That matters for interviews, voice memos, unreleased music, and other private recordings. EaseBowl records basic usage statistics, such as how often a tool is used, but not your files or their contents.