Text Diff
Compare two blocks of text line by line and see what was added, removed or unchanged. Free and private, right in your browser.
Paste two versions of a document, contract, or code snippet side by side and instantly see exactly which lines and words were added, removed, or changed, no more manually scanning for the one word someone edited.
How to use it
- Paste the original text into the left box
- Paste the revised text into the right box
- Scan the highlighted additions and deletions
Frequently asked questions
- Does it show word-level or line-level changes?
- Both: lines that changed are highlighted first, then the specific words added or removed within those lines are marked so you can spot a single swapped word without rereading the whole paragraph.
- Can I compare code with this, not just prose?
- Yes. It works on any plain text, including code, JSON, config files, or CSV rows. It's not syntax-aware, so it won't ignore whitespace-only formatting changes unless you tell it to.
- Is my text uploaded anywhere?
- No. The comparison runs entirely in your browser, so pasting in a contract draft, source code, or anything else confidential never leaves your machine.
- 1
Nothing is uploaded
The file never leaves your device. There is no server to send it to, so there is nothing to leak, log, or subpoena.
- 2
No signup, no limits
No account, no email, no daily cap, no watermark, and no paid tier waiting behind the third file.
- 3
Works offline
Load the page once and it keeps working with the network off, because all the work was always happening locally.