Text diff viewer
Side-by-side and inline diff for any two texts.
- Developer
- Free to use
- Server processed
Your input
Set your options
Run Text Diff
Processed on our servers. Sent over TLS, and any file it makes is deleted an hour later — 24 hours if you are signed in.
Three steps
How to use Text Diff
- Step 01
Pick your input
Paste your text into the box above.
- Step 02
Configure & run
Adjust the options (a, b, mode, ignore whitespace) and click Run. The work runs on our own infrastructure — no third-party processing APIs in the path.
- Step 03
Download the result
The result appears below the form. Copy it with one click.
This tool runs on our servers. There is nothing to upload, and any file it makes is deleted an hour after it is made — 24 hours if you are signed in. We do not use third-party processing APIs.
About Text Diff
Compare two pieces of text and see exactly what changed. It sits in the developer shelf alongside 76 other developer tools, needs no account, and keeps the same behaviour whether you open it here or call it through the REST API.
It works from what you type in rather than a file and gives back text. The work happens on our servers. There is nothing to upload, and any file it makes is deleted an hour later — 24 hours if you are signed in. The same operation is available programmatically at POST /v1/dev/diff.
Text Diff questions
Where does Text Diff do its work?
On our own servers. There is no file to upload: what you enter is sent over TLS and processed on our infrastructure — no third-party processing APIs are in the path — and any file it makes is deleted within an hour.
Do I need an account to use Text Diff?
No. Text Diff works without signing in, and that is not a trial — it is how the free tier works. An account only matters for things that need one to exist at all: larger server jobs against your quota, API keys, saved workflows and billing.
Can I run Text Diff from my own code?
Yes. Every tool on the site is reachable from the REST API with the same slug — `text-diff` — and the same options as this page, so anything you can do here you can automate.
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