Add a comma or period between groups of three digits in text. Keep surrounding words and produce an editable plain-text result. Follow the exact input and settings below to reproduce this example. Open Add Comma to Numbers.
Prepare the source text
Open Add Comma to Numbers and choose Write or paste text, or upload a supported UTF-8 text file. The upload opens the editor; it does not run the tool. This example uses the exact source shown in the comparison.
Maximum input and result: 1 MB of UTF-8 text, with a 1,048,576-character input ceiling. Expanding transformations must also fit the result limit.
Use the exact example input
Budget 1234567 and 1234.50
This text operation runs in your browser; its source and result are not sent for conversion. A draft may be kept in this browser tab when session storage is available. Clear removes the current draft; download important work before closing the tab.
Choose the settings
For the recorded example, use these settings: Thousands separator: Comma (1,000).
Comma groups digits as 1,234,567 and keeps a decimal point: 1234.50 becomes 1,234.50. Period groups digits as 1.234.567 and uses a decimal comma: 1234.50 becomes 1.234,50. Only the integer part is grouped. Check identifiers, dates and numbers that already contain separators, because this is a text replacement.
The example in this guide
Verified in the i2TEXT browser workflow on November 11, 2026.
- Input
- example.txt
- Output
- add-comma-to-numbers.txt
- Saved result
- 29 bytes
Apply and inspect the result
Select Add Comma to Numbers when the input and settings are ready. In the saved example, the result begins: "Budget 1,234,567 and 1,234.50".
Use plain digits with a period for any decimal fraction. This tool does not convert currencies or fully parse numbers that already have grouping separators or use locale-specific formats.
Result overview shows Numbers formatted and the input-to-result character totals. Numbers formatted counts only number strings whose written form changed, so an unchanged short integer is not counted.
Result overview distinguishes changed, unchanged and empty results. An unchanged result means the selected operation did not alter the text; an empty result can be the expected outcome of removal or extraction.
Save the version you reviewed
Review the current result, then use the download icon to save a TXT file. The actual download in this example is named add-comma-to-numbers.txt. Copy and download use the current result, so make any final wording changes before saving. Continue to can carry the result into a compatible next tool, where you review it before running another operation.
Editing the result hides the calculated details until you run the tool again. Copy and TXT download use the edited text; return to the source and reapply the tool to refresh the report.
example.txtadd-comma-to-numbers.txt
Common questions
Which settings produced this example?
Thousands separator: Comma (1,000).
What should I check before using the result?
Use plain digits with a period for any decimal fraction. This tool does not convert currencies or fully parse numbers that already have grouping separators or use locale-specific formats.
Where is this text processed?
This text operation runs in your browser; its source and result are not sent for conversion. A draft may be kept in this browser tab when session storage is available. Clear removes the current draft; download important work before closing the tab.
Try Add Comma to Numbers with your own text.
Use your own source and review the result before sharing.
