How to Convert IMA to AU — Quick & Free
Fast, instant IMA to AU conversion. No signup required. Just drop your .ima file and get .au in seconds.
Batch Settings
About IMA to AU Conversion
Short answer: yes, you can convert IMA to AU online for free, and quality is well preserved with the right settings. Just upload your .ima file to CocoConvert, pick AU as the output, and click Convert. The whole process takes seconds.
Now for the details. IMA is a widely used file format. AU is a widely used file format. Converting between these two formats lets you convert between formats quickly.
Your IMA file is decoded and re-encoded as AU. Converting IMA to AU maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert IMA to AU
- 1
1. Upload IMA
Drop your .ima file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select AU
Choose .au from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .au file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert IMA to AU
Your IMA file is decoded and re-encoded as AU.
Your IMA file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in AU format
The converted file is ready for download
Format Comparison
IMA
.ima file
| Extension | .ima |
| MIME Type | audio/x-ima |
| Category | Audio |
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
Should You Convert IMA to AU?
When to Convert
- ✓When you need a AU file
Frequently Asked Questions
Is IMA to AU conversion free?
Yes. CocoConvert offers free IMA to AU conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is IMA to AU conversion?
Most files convert in 2–10 seconds depending on size. Large audio files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded IMA file and the converted AU file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting IMA to AU lose quality?
Converting IMA to AU maintains high quality with CocoConvert's optimised encoder settings.
Can I convert AU back to IMA?
Yes, CocoConvert supports AU to IMA conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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