Can I remove duplicate lines and keep order?

Yes. You can dedupe while preserving the first or last occurrence, with optional case-insensitive matching to keep the original order.

Does it support regex for find & replace or filtering?

Yes. Use regular expressions with flags for powerful find/replace and for filtering lines to include or exclude matches.

No. All operations run locally in your browser for a privacy-friendly workflow.

Sort, dedupe, trim, find & replace, filter, shuffle, and format lines fast.

Input

Paste or type your lines below. We can trim and remove empty lines automatically.

Trim each line

Remove leading & trailing spaces.

Remove empty lines

Ignore blank lines in processing.

Case sensitive

Affects sort & dedupe.

Keep order on dedupe

Preserve first occurrence.

Total: 0

Non-empty: 0

Empty: 0

Unique: 0

Avg length: 0

Operations

Run one action at a time—result appears below. Prefix/suffix/numbering update live.

Find & Replace

Find

Replace

Regex

Whole word

Filter lines

Query

Regex

Prefix / Suffix / Numbering

Prefix

Suffix

Enable numbering

Start number

Number separator

Output

Live

Result of the last action with live affixes applied.