How to use the Text Diff Checker.
A useful diff preserves enough context to locate changes. Distinguish text edits from formatting-only differences when that matters.
Make the workflow fit your task.
Compare the two versions in a consistent order and choose whether whitespace or case changes matter. Present insertions and deletions with nearby text. Separate wording changes from their possible meaning, and preserve original versions for verification.
- What you provide
- Two versions of text.
- What you get
- Additions, deletions and changed passages.
See the input and the result.
Illustrative input and output · a teaching example, not a live WebAct run
Example input
Version one: Delivery takes three days. Version two: Delivery takes five days.
Completed example
Changed word: three → five. The stated delivery duration increased by two days.
Load this input into the prompt, then copy it to WebAct to try the task. Your result may differ from the illustration.
Decisions and troubleshooting.
Can a text diff tell whether a factual claim is now correct?
It can identify the changed claim, but correctness requires evidence beyond the two versions.
Why does the diff mark an entire paragraph as changed after one edit?
Line-based comparison can group nearby differences. Try word-level comparison while retaining enough context to locate the change.
Try it with your own source.
Replace the example with your material in the task prompt. Keep the requirements you need, then copy the task into WebAct.
Customize and copy the task ↑