text-tool / text-tool
Remove Duplicate Lines
Deduplicate line-based text while preserving first-seen order.
Paste repeated values, keep the first occurrence, and copy the cleaned list out immediately.
Input
text
Output
text
Engine
browser-transform
Speed
instant
Input
Output
Trust and limits
Every page should explain the rules before the user commits.
Files are deleted automatically
Secure processing path
Clear conversion limits
No signup for basic use
What stays
- - first-seen order
What may change
- - duplicate occurrences by design
Known limitations
- - case-sensitive behavior should stay explicit
Typical use cases
- - cleanup
- - mailing lists
- - tag management
Available options
- - trim spaces
- - case-sensitive mode
FAQ
Does this tool upload my text?
The current prototype runs directly in the browser so you can inspect the result instantly without a file upload.
What is this tool good for?
Remove repeated lines from a list while keeping order.
Can I export the result?
Yes. The prototype lets you copy the transformed output immediately, and file export can be added on top later.