Remove Duplicates (Preserve Order)

About This Spell

With a wizard's whisper, Remove duplicate lines from a list while preserving the first occurrence. Optionally keep blank lines and append counts to each unique item.

How to Cast the Spell:

Use your magic to Paste items (one per line).
Use your magic to Choose case sensitivity and options.
Use your magic to Click Deduplicate to get the unique list.

What is Deduplicate List?

Deduplicate List is a free list manager from WizardOfAZ. Use it to work with lists using flexible options as part of your organising research, without installing extra software.

Because everything happens locally in your browser, your lists stay under your control while you work with lists using flexible options.

Popular ways to use Deduplicate List

Streamline organising research by using Deduplicate List to work with lists using flexible options.
Share deliverables faster—processed lists are ready for download in seconds.
Combine Deduplicate List with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

Upload a sample file, cast the spell to work with lists using flexible options, and download the processed result instantly.
Bookmark the Deduplicate List in your browser so recurring tasks stay only one click away.
Share the spell with teammates who need a quick, no-install way to work with lists using flexible options.

Frequently asked questions

Is the Deduplicate List secure?

Yes. The Deduplicate List runs entirely in your browser, which means your lists never leave your device.

What can I do with the Deduplicate List?

You can organising research by processing lists without uploading them to an external service.

Can I use Deduplicate List on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement Deduplicate List:

Chunker — Use it to work with lists using flexible options.
Clean Trim — Use it to work with lists using flexible options.
Combinator — Use it to work with lists using flexible options.