Add Line Numbers
Text ToolsToolio Add Line Numbers stamps a running index on every row of a paste. Use it when a teammate needs to point at line 42 in a log or poem. Numbering happens in the browser so the file is not uploaded.
55k uses · Runs locally
How to use
- 1Paste the text that needs numbered rows.
- 2Add line numbers as a prefix.
- 3Copy the numbered version for review.
- 4Strip numbers later if you need the raw file.
Benefits
- Cite lines without opening an IDE.
- Logs stay on this device.
- Clearer feedback in email reviews.
Frequently asked questions
Related tools
More text tools →Line Counter
Text Tools
Count lines in logs, poems, and CSV dumps so you know how large a paste really is before import.
85k uses
Text Sorter
Text Tools
Sort lines alphabetically or in reverse so lists, tags, and inventories are easier to scan.
86k uses
Prefix / Suffix Lines
Productivity Tools
Add a prefix or suffix to every line so lists become quoted, tagged, or wrapped in one pass.
67k uses
Remove Duplicate Lines
Text Tools
Drop repeated lines from lists, logs, and exports so each unique row appears only once.
99k uses
Word Counter
Text Tools
Count words in essays, briefs, and captions so drafts stay inside the limit you actually need.
222k uses
Character Counter
Text Tools
Measure characters with and without spaces for bios, ads, SMS drafts, and strict form fields.
177k uses