🎉Now Live:Advanced File Customization— tweak, tune, and transform your files with pro-level settings, all free!
AU to MP3 Converter
Convert AU to MP3 online — free, fast and secure. Try now!
Drag and drop your files here or click to upload.
0 files uploaded. 100 files remaining.
Maximum file size is 1GB
How to Convert AU to MP3
Click inside the file drop area to upload your AU file or drag & drop it.
Locate your AU 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 MP3 as the output format and click the 'Convert' button.
Choose MP3 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 MP3 file instantly after conversion.
Once the conversion is complete, click the download link to save your MP3 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.
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.
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.
Convert Your AU files to other formats
RunConvert.com can convert your AU files to these other formats:
Convert Your AU files to other formats
Convert Files to AU Format
RunConvert.com supports these converters to AU format:
Convert Files to AU Format
People May Also Search For
People also search for these popular file conversions on RunConvert.com
People May Also Search For
Frequently Asked Questions
Here are some common questions and answers about au and mp3 file conversions asked by our users on RunConvert.com.
Frequently Asked Questions
Q: What’s an AU file, and why convert it on RunConvert?
A: AU files are old-school audio files from Unix systems, like a time capsule from the early internet days. You might convert them to MP3 for modern devices or WAV for editing. RunConvert makes it a cinch. It’s like turning a floppy disk into a USB drive. RunConvert’s got you covered, wherever you are!
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: What formats can I convert MP3 to on RunConvert?
A: The sky’s the limit! RunConvert can turn MP3 into WAV, FLAC, OGG, AAC, WMA, and tons more. It’s like a musical Swiss Army knife—whatever you need, it’s got it. Perfect for creators and listeners from Berlin to Buenos Aires.
Q: What’s the deal with MP3 files, and why convert them on RunConvert?
A: MP3s are the rock stars of audio—small, versatile, and playable everywhere. But sometimes you need a different format, like WAV for editing or FLAC for hi-fi sound. RunConvert lets you switch it up easily. It’s like swapping a pop single for a vinyl record. No matter where you are, RunConvert’s got the tools to keep your tunes flowing!
Q: Can I convert an audio file into a different language?
A: While we can’t translate audio, you can definitely convert audio files with different languages into the format you need. For translation, you’d want to look into transcription and translation services first.
Protecting Your Data is Our Top Priority
At RunConvert, we prioritize your data's security during every file conversion. Our advanced encryption protocols ensure that your files are protected throughout the entire process. Whether you're converting documents, images, or audio files, we host all our operations in secure data centers with constant monitoring, ensuring the safety of your information.
End-to-End Encryption
Your files are encrypted from upload to delivery with AES-256 encryption standards.
Protected Storage
Redundant, encrypted storage systems with geo-distributed backups and disaster recovery.
Secure Access Control
Multi-factor authentication and role-based access management for your entire organization.
What Our Users Say
Don't take our word for it – here's what users think about Runconvert.
Saved me hours of work
I had to convert multiple PDFs to Word for editing. This tool made it so easy and preserved all the formatting perfectly. The batch processing feature is a game changer.
Michael T
Professional quality
As a graphic designer, I need reliable conversion tools. This site delivers professional quality every time. The image conversions maintain resolution and color accuracy.
Elena R
Fast and reliable
I've tried many conversion tools but this one is by far the fastest and most reliable. No watermarks, no quality loss, and the interface is so intuitive.
David K
Rated 4.5/5 based on 5400+ reviews5400+ reviews. Showing our latest reviews.
How would you rate your experience with our service?
Rating Distribution