Drag. Drop. Compare.

Short-text comparison, built for professionals who need speed, clarity, and control.

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Bringing speed and precision to everyday comparisons

Secure by design

Your text never leaves your machine.

Fast and local

Instant results, right on your device.

Simple yet powerful

One tool. One job. Done perfectly.

What BLine Does

Bline is a simple desktop tool that compares two pieces of text and shows the differences — a process often called blacklining.

Compare Any Text, Instantly

Drop in text from Word, PDFs, PowerPoint slides, or emails. BLine highlights every change in seconds.

Generate Clean Blacklines

Create clear markups showing insertions, deletions, and edits. Export results as text or PDF.

Edit as You Compare

Adjust the old or new text directly, the blackline updates in real time.

Work Across Formats

Compare content from different sources, even when files don’t match formats or layouts.

Process Everything Locally

All comparisons run directly on your computer, not in the cloud.

Copy or Export with One Click

Export the blackline and clean text for use in email or your existing workflow.

What BLine Does

Bline is a simple desktop tool that compares two pieces of text and shows the differences — a process often called blacklining.

Compare Any Text, Instantly

Drop in text from Word, PDFs, PowerPoint slides, or emails. BLine highlights every change in seconds.

Generate Clean Blacklines

Create clear markups showing insertions, deletions, and edits. Export results as text or PDF.

Edit as You Compare

Adjust the old or new text directly, the blackline updates in real time.

Work Across Formats

Compare content from different sources, even when files don’t match formats or layouts.

Process Everything Locally

All comparisons run directly on your computer, not in the cloud.

Copy or Export with One Click

Export the blackline and clean text for use in email or your existing workflow.

What BLine Does

Bline is a simple desktop tool that compares two pieces of text and shows the differences — a process often called blacklining.

Compare Any Text, Instantly

Drop in text from Word, PDFs, PowerPoint slides, or emails. BLine highlights every change in seconds.

Generate Clean Blacklines

Create clear markups showing insertions, deletions, and edits. Export results as text or PDF.

Edit as You Compare

Adjust the old or new text directly, the blackline updates in real time.

Work Across Formats

Compare content from different sources, even when files don’t match formats or layouts.

Process Everything Locally

All comparisons run directly on your computer, not in the cloud.

Copy or Export with One Click

Export the blackline and clean text for use in email or your existing workflow.

How BLine Works

Drag

Drag in your old text and new text

Drop

Drop both texts into the comparison window

Compare

Compare both texts and see the blackline instantly

People love using BLine for their most important work

“BLine does exactly what I need.”
“Solves easy tasks easily, without complicating things.”
“It’s an instantaneous redline that removes all formatting so you can compare just the text.”
“No pop-ups, no bells & whistles, it just works.”
“Honestly, BLine is the best. How did I go all my life without it???”

“It’s such a handy application I didn’t want to risk a moment without it.”
“It’s a fantastic program. I use it all the time.”
“I find BLine to be one of the pieces of software I turn to most regularly in my work.”
“I use it all the time and sing its praises.”
“Appreciate the software. I use it all the time.”

Fast, precise and friction free comparisons for everyday text.