MP3 to AU Converter
Free online tool to convert MP3 to AU files quickly and securely. No installation required – start converting your files in just a few clicks!
Drag and drop your files here or click to upload.
0 files uploaded. 100 files remaining.
Maximum file size is 1GB
How It Works
How to Convert MP3 to AU
Click inside the file drop area to upload your MP3 file or drag & drop it.
Locate your MP3 file on your device—typically used for various purposes. Ensure the file is under 50MB to avoid upload issues. If the upload fails, check your internet connection or try compressing the file first.
Select AU as the output format and click the 'Convert' button.
Choose AU based on your needs—different formats suit different purposes, like JPEG for smaller file sizes. The conversion process typically takes a few seconds, depending on file size and server load.
Download the converted AU file instantly after conversion.
Once the conversion is complete, click the download link to save your AU file. You can then open it in software like a compatible viewer. If the file doesn’t download, ensure your browser allows pop-ups from RunConvert.
You can also send a link to the converted file via email. (Optional)
Enter an email address to receive a secure link to your converted file, which is useful for sharing with clients or accessing later. Links expire after 24 hours for security, and RunConvert ensures your data is protected during transmission.
Convert Your MP3 files to other formats
RunConvert.com can convert your MP3 files to these other formats:
Convert Your MP3 files to other formats
Convert Files to MP3 Format
RunConvert.com supports these converters to MP3 format:
Convert Files to MP3 Format
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Frequently Asked Questions
Here are some common questions and answers about mp3 and au file conversions asked by our users on RunConvert.com.
Frequently Asked Questions
Q: Can I use RunConvert on my phone for MP3 files?
A: You sure can! RunConvert works on any browser, so your phone’s perfect for converting MP3 files on the go. No apps, just hit runconvert.com. It’s like carrying an audio studio in your pocket, whether you’re in Paris or Perth.
Q: Why convert MP3 to AAC on RunConvert?
A: AAC is Apple’s preferred audio format, often smaller than MP3 with better quality. RunConvert makes it easy—just pick AAC. It’s like swapping your track for an iPhone-friendly version. Why stick to MP3 when you can go sleek?
Q: Can I convert AU to FLAC for lossless quality?
A: Yup! FLAC keeps all the quality of AU but takes up less space—great for archiving. RunConvert does it in a snap—just pick FLAC. It’s like storing a vinyl collection in a smaller cabinet. Perfect for audio nerds everywhere!
Q: Why convert AU to WAV on RunConvert?
A: WAV is uncompressed, making it perfect for editing in tools like Audacity. If you’re tweaking retro audio, WAV’s your friend. RunConvert makes it easy—just pick WAV. Why lose flexibility when you can keep every sound crystal clear?
Q: Can I adjust the volume of my audio file before conversion?
A: Unfortunately, we don’t offer volume adjustments in our platform right now. But you can adjust the volume in your audio editor before uploading it to RunConvert. Many free tools out there can help with that!
Q: What’s the best audio format for high-quality podcasts?
A: For podcasts, we recommend using MP3 with a bitrate of at least 128kbps to ensure high-quality sound while keeping file sizes manageable. FLAC is another great choice if you’re after the best sound quality, though the files will be larger.
Q: Can I convert audio to different formats for use in my audio library?
A: Yes, you can! Whether you’re building an audio library for personal or professional use, RunConvert can help you convert your files to the formats that best suit your needs—MP3, FLAC, OGG, and more.
Q: Can I convert audiobook chapters into separate files?
A: While RunConvert doesn’t split audiobooks automatically, you can split them manually with another tool before converting. After that, converting each chapter into a separate format is a breeze.
Q: What’s the best format for music streaming on my device?
A: For music streaming, MP3 is often the most compatible format across devices, but FLAC is perfect if you want the best audio quality. If you’re prioritizing smaller file sizes, MP3 is the way to go!
Q: Can I convert audio for use in podcasting?
A: Yes! If you’re creating a podcast, you can upload your audio files and convert them into the format you need, like MP3. The process is seamless, and we’ll ensure your podcast sounds great no matter where it’s played.
What is MP3 (MPEG-1 Audio Layer III)?
MP3 (MPEG-1 Audio Layer III) is a popular audio compression format that is widely used for storing music, podcasts, audiobooks, and other audio files. It uses lossy compression, meaning some audio data is discarded to reduce the file size while maintaining reasonable sound quality.
MP3 files are compatible with almost all devices and media players, making it the most commonly used audio format for music distribution and streaming.
How to open MP3?
MP3 files can be opened with nearly every media player, including Windows Media Player, VLC Media Player, iTunes, and others.
On macOS, you can open MP3 files using the default Music app, QuickTime Player, or third-party apps like VLC.
MP3 is Developed by: Fraunhofer IIS and others
MP3 was Released on: 1993
Useful Links for MP3:
How to convert MP3?
You can convert MP3 files using an online audio converter. Simply upload your MP3 file, select the output format you prefer (e.g., WAV, AAC, or OGG), and convert it.
Our converter ensures fast processing with high-quality output that is compatible across various devices and platforms.
What is AU (Audio File)?
AU is an audio file format developed by Sun Microsystems in the 1980s. It is commonly used for storing digital audio data, and was originally used for audio files on Unix-based systems.
The .au format supports various audio quality levels and is known for its simplicity. It is mostly used in software development and by developers who work with raw audio data.
How to open AU?
AU files can be opened with a variety of media players like VLC Media Player, Audacity, or QuickTime on macOS.
Windows users can open AU files using VLC Media Player or install software like Winamp with the appropriate plugin.
AU is Developed by: Sun Microsystems
AU was Released on: 1987
Useful Links for AU:
How to convert AU?
To convert AU files, you can use our online audio converter. Simply upload your AU file, select the output format (MP3, WAV, etc.), and start the conversion process.
Our converter ensures quick and high-quality conversion for better compatibility with various audio players and devices.
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