Local-firstYour text never leaves your browser. No upload, no account, no server.
Most online text tools send whatever you paste to a server, run the work there, and send a result back. Your words sit in someone else’s logs, backups and databases, and you have to trust a privacy policy.
Local-first means the opposite: the whole tool is downloaded to your browser and runs on your own device. Nothing you type is transmitted anywhere — not to us, not to anyone. There is no server that could receive it, which is a stronger guarantee than a promise not to look.
Three consequences worth knowing:
Paste a list, press Convert, and every repeated line disappears while the first occurrence of each stays exactly where it was — the order you pasted is the order you get back. Useful for cleaning up exported email lists, log files, keyword dumps, and anything else that accumulated repeats. The tool tells you how many lines went in, how many came out, and how many it removed, so you can sanity-check the result before copying it.
No. Order is preserved and only later repeats are dropped, so the first time each line appears is where it stays. Many command-line approaches sort as a side effect of removing duplicates; this one does not.
Not by default, because for things like passwords or identifiers the difference matters. Switch on "Ignore case" and they are treated as duplicates, with the first spelling kept.
Every blank line is kept by default, so paragraph spacing survives. Turn on "Remove duplicate blank lines" if the blanks are noise rather than structure.
They count as different lines until you switch on "Ignore leading/trailing spaces". With it on they are compared trimmed, and the original spacing of the line that is kept stays intact.