Convert anything, at global scale.
200+ formats and automation APIs that feels instant.
CONVERT
From
To
Drop files or choose a source
Upload multiple files at once, mix formats, and fine-tune every conversion with format-aware settings.
Max 2GB per file · Drag & drop ready · Mixed file types welcome
AUDIO
TXT to AU Converter — Free, Online, No Signup
Convert TXT files to AU online with no signup required.
TXT at a glance
TXT
Plain-text files are older than most modern document ecosystems, and many later markup and structured-writing formats exist precisely because people wanted to preserve text readability while layering more structure on top.
AU at a glance
AU
AU belongs to an earlier multimedia era where workstation and Unix vendors often had their own practical audio defaults.
Format comparison
| Feature | TXT | AU |
|---|---|---|
| File type | Document | Audio |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1963 | 1987 |
| Inventor | ASCII/plain-text computing tradition | Sun Microsystems |
| Status | active | active |
| Primary use cases |
|
|
When to use each format
When to use TXT
- Your source file is already in TXT.
- Preserve source expectations before exporting to AU.
- TXT is commonly used in document workflows.
When to use AU
- Your target workflow expects AU.
- Improve delivery compatibility with AU.
- AU is commonly used in audio workflows.
FAQs
Why convert TXT to AU?
Convert to AU when preserving compatibility with older Unix or workstation software, educational assets, or historical multimedia archives.
In most present-day workflows the practical task is to decode AU content and move it to WAV, AIFF, or a modern compressed format.
Use AU only when downstream compatibility makes it necessary.
What changes when converting TXT to AU?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting TXT to AU?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.