Why it matters
'What did the client change?' comes up constantly: revised copy, an edited config file, two versions of a contract page. Reading both versions side by side misses small changes, such as one digit in a phone number.
A diff shows every added, removed and changed line, and highlights the exact words that changed. Unlike many online diff sites, nothing you paste leaves your browser.
How it works
- InputOriginal and changed text
- In your browserMyers line diff, then word highlights
- OutputInline or side-by-side view and a unified .diff
Where it fits in a designer's workflow
- Plan
- Design
- Build
- Test
- Launch
By the numbers
Show the numbers as a table
| Kind | Lines |
|---|---|
| Unchanged lines | 3 |
| Changed | 2 |
| Added | 1 |
| Removed | 0 |
How to use it
- Paste the original on the left and the changed version on the right.
- Choose one column or side by side.
- Read the summary and scroll the highlighted changes.
- Download the unified diff if you need a patch file.
FAQ
How does it decide what changed?
It finds the longest common sequence of lines, the same idea git uses, then compares the words inside changed lines.
Can it compare Word documents?
Paste the text from them. It compares plain text, not formatting.
How big can the texts be?
A few thousand lines each is quick. Very large files may take a moment.
Is the text private?
Yes. The comparison runs entirely in your browser.