Deduplicate Lines
Deduplicate Lines is a free online transformer that helps you remove duplicate lines from a list; case-sensitive or not, preserve original order or not. Deduplicate Lines uses 4 input fields, returns 3 output values, and runs in your browser on the device.
Key facts
- Inputs
- 4 fields: Text (one item per line), Case-sensitive, Preserve order (first wins), and Trim whitespace before comparing
- Outputs
- 3 values: Unique lines, Duplicates removed, and Lines kept
- Runtime
- your browser on the device
- Mode
- Transformer
- Privacy
- Files and text stay in the browser session.
- Cost
- $0, no account required
How to use Deduplicate Lines
- 1
Paste or fill in the input
Enter your text or values into the input fields on the page.
- 2
Run the utility
Click Compute to run the utility in your browser and review the result.
- 3
Copy the output
Copy the output value you need from the result panel.
Deduplicate Lines details
First, enter Text (one item per line) in Deduplicate Lines. Next, review Unique lines, Duplicates removed, and Lines kept. Additionally, Deduplicate Lines uses 4 input fields and 3 output blocks so the result is easy to scan and copy.
Strip out repeated lines from any text block. Choose whether comparison is case-sensitive, whether whitespace at the ends of each line is trimmed before comparing, and whether the first occurrence of each value stays in its original position. Runs entirely in your browser.
Common searches
- dedupe lines
- deduplicate lines
- remove duplicate lines
- unique lines
- dedupe text
- remove duplicates
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Frequently asked
What is Deduplicate Lines?
Deduplicate Lines is a free online transformer that helps you remove duplicate lines from a list; case-sensitive or not, preserve original order or not. Deduplicate Lines uses 4 input fields, returns 3 output values, and runs in your browser on the device.
What inputs and outputs does Deduplicate Lines use?
Deduplicate Lines uses 4 input fields: Text (one item per line), Case-sensitive, Preserve order (first wins), and Trim whitespace before comparing. Deduplicate Lines returns 3 output values: Unique lines, Duplicates removed, and Lines kept.
Do my files and data stay private?
Yes. Deduplicate Lines runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How do I use Deduplicate Lines?
Open Deduplicate Lines, paste or fill in the input fields, and the result updates instantly. Deduplicate Lines runs in your browser with no upload and no waiting.
Which browsers does Deduplicate Lines support?
Any modern browser works in Chrome, Firefox, Safari, and Edge on desktop and mobile. Deduplicate Lines uses standard web APIs and does not require any plugin, extension, or sign-up.