TOML Diff & Compare

Paste two TOML documents to see highlighted line-by-line differences, a change summary, and a similarity percentage. Everything is processed on your device.

Options
or press Ctrl+Enter
Result
Fill A and B, then click Compare.

Everything runs in your browser. Your data is never sent to our servers.

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Example

Example Input

two TOML files

Example Output

changed values highlighted

How to Use

  1. 1Paste the first TOML documents (A) in the left box and the second (B) in the right box.
  2. 2Adjust the options if needed (ignore case, whitespace, or empty lines).
  3. 3Click Compare (or press Ctrl+Enter).
  4. 4See the highlighted differences, a summary of how many changes there are, and the similarity percentage. Switch between side-by-side / unified / inline views.

About TOML Diff & Compare

TOML Diff & Compare parses both TOML inputs and compares the tables and values structurally. Great for comparing config files like Cargo.toml, pyproject.toml, or application configs.

Differences are shown with the key path so you immediately know which value changed.

FAQ

What is the difference between "diff" and "compare"?

Both are done by the same tool. "Diff" highlights the lines/parts that changed (added/removed), while "compare" shows how similar the two inputs are (similarity percentage + summary). You get both at once here.

Is my data sent to a server?

No. The entire comparison is computed in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.

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