Remove Duplicate Lines

Remove duplicate lines from any text list instantly.

No signup requiredAlways free to use256-bit secureNever leaves your device
1 lines

Options

Common uses

Clean up email lists, keyword lists, CSV data, log files, or any repeated text. Paste your list, enable the options you need, and copy or download the deduplicated result — no server upload, no account.

Case sensitive OFF

"Hello" = "hello" (same)

Trim whitespace ON

" hello " = "hello"

Sort A→Z

Alphabetically ordered output

Keep blank lines

Preserve empty rows in output

How it works

1. Upload

Select or drag your file onto the upload area.

2. Process

Your file is processed instantly — nothing is stored.

3. Download

Download your result with one click. Done.

Why Criply

Private by default

Client-side tools never upload your files. Server-side tools delete them immediately after processing.

No account needed

Just upload and go. No email, no password, no account — ever.

Works on any device

Fully browser-based. Works on desktop, tablet, and mobile with nothing to install.

Frequently asked questions

With case sensitivity OFF (the default), 'Apple', 'APPLE', and 'apple' are treated as the same line and duplicates are removed. Turn it ON if you need 'Apple' and 'apple' to be kept as separate unique entries.

Related tools

Paste any list of text and remove duplicate lines instantly. Options for case sensitivity, whitespace trimming, alphabetical sorting, and keeping blank lines. See a before/after line count. Copy the result or download as a .txt file. No server, no signup.