Line numbering
Line numbering: process input locally and deterministically without network, device access, or file access.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Input
Result
Processed locally
Enter text to see results
What this tool does
- Process text
- Copy the result
Example
Input
a
Output
1 a
The result depends only on input and options.
Frequently asked questions
Does it use the network?
No, processing is local.
Is input uploaded?
No network is accessed.
Is it reproducible?
Yes, identical input gives identical output.
Keywords：文本行号txt_xuhao本地offlinetext