About Compare text
Use text compare online to review edits in a configuration, draft, or plain-text export. You can compare two text blocks and see line-level changes: + marks additions, - marks removals, and unmarked content is retained as context.
How to compare text line by line
- Paste the original and revised text in their inputs, or use each input's Import file control for a local text file.
- Select Process to compute the line-level difference.
- Review the marked lines and download text-diff.txt if needed.
A practical example
- Input
old
- Comparison
new
- Result
- old + new
The first line was removed and the second was added. This is a line-level report, not tracked changes in a Word document.
Supported input and limitations
- Each pasted or imported text block is limited to 5 MB. Very different inputs can exceed the comparison time or edit limit.
- Plain-text file imports are supported. Word-level highlighting, ignoring whitespace, semantic JSON comparisons, and DOCX/PDF document imports are not provided.
Processing happens on your device. Read about local processing and optional workspace recovery.
Frequently asked questions
Is text comparison case sensitive?
Yes. Text is compared as supplied; case changes and whitespace changes can produce different lines.
Can I compare text files online?
Yes. Use Import file for the original and comparison inputs to read supported local text files up to 5 MB each. They stay on your device. DOCX and PDF are not plain-text imports; empty text is also a valid comparison input.