Convert tools

Add / Remove Line Numbers

Add 1-based line numbers or remove matching numeric prefixes.

Convert in your browser · No sign-up

Remove mode recognizes only a leading number followed by a period and a space. Blank lines are numbered too.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

How to use

  1. Add 1-based line numbers or remove matching numeric prefixes.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

apple
banana → 1. apple
2. banana

Details and limitations

Remove mode recognizes only a leading number followed by a period and a space. Blank lines are numbered too.

Text stays in your browser; it is not sent to a conversion server.

FAQ

Add / Remove Line Numbers — What are the supported inputs and limits?

Remove mode recognizes only a leading number followed by a period and a space. Blank lines are numbered too.

Format references

Tool page updated: