Remove Duplicate Lines
Paste text and remove all duplicate lines while preserving order.
Also try: Text Case Converter · Word Counter
Using AI? Optimize your prompts first.
Better prompts = better output = fewer revisions.
Try the Prompt Optimizer — Free →You might also like
Remove Extra Spaces
Remove Extra Spaces is a free, no signup tool built for knowledge workers. Get the result instantly in your browser and move on—try it now in seconds—try it now
Text Line Sorter
Text Line Sorter is a free, no signup tool built for knowledge workers. Get the result instantly in your browser and move on—try it now in seconds—try it now
Word Counter
Word Counter is a free, no signup tool built for knowledge workers. Get the result instantly in your browser and move on—try it now in seconds—try it now
AI Prompt Optimizer
AI Prompt Optimizer gives you ready-to-use prompts you can copy and customize. Free, no signup, and organized for real workflows—open it now in seconds—try it n
100% client-side where applicable — your files and inputs stay in your browser. Nothing is uploaded to HundredTabs servers for these tools.