Keep Last N Lines
Keep only the final lines of a list, just like the tail command. Free, no signup.
Scan to open on your phone
Point your phone camera at the code to open this tool.
Keep only the final lines of a list, just like the tail command. Free, no signup.
How to use Keep Last N Lines
- Paste or type your contentThe result appears as you type — there is no submit button.
- Set “Number of lines”
- Read and copy the resultThe output updates live and the copy button takes it in one click.
Worked example
- line 1 line 2 line 3 line 4 line 5
- line 4 line 5
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Keep Last N Lines only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- What if there are fewer lines than requested?
- You get the entire list; nothing is padded or duplicated.
- Is this like the tail command?
- Yes. It returns the last N lines, matching tail in a terminal.