Calculator
What the Text Compare Tool does
Text Compare Tool: calculates Status from Text A (original) and Text B (changed). Example: the sample loaded on the page gives status Compared.
Enter Text A (original) and Text B (changed) and the Text Compare Tool reports Status. Fill in the fields, run it, and the output shows up underneath.
Most people who open the Text Compare Tool are developers debugging a payload. Spotting a malformed field is far quicker when the structure is laid out clearly.
Nothing leaves the tab. You can watch your browser network panel while you use it and see for yourself.
The meaning of each field, the formula in use, and a worked example that starts from the default inputs are all further down.
What do the Text Compare Tool fields mean?
The Text Compare Tool uses 2 inputs. You do not have to fill everything in before seeing an answer; the starting values already produce one.
| Field | What to enter | Default |
|---|---|---|
| Text A (original) | paste or type any amount of text | line one line two line three |
| Text B (changed) | paste or type any amount of text | line one line TWO line three line four |
How does the Text Compare Tool work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same calculation.
Checks happen up front, so errors surface next to the form instead of hiding in the output.
Worked example
These are the values the Text Compare Tool loads by default, and the result it produces from them. This is the worked example the page starts from, reproduced here so you can check the arithmetic.
| Text A (original) | line one line two line three |
|---|---|
| Text B (changed) | line one line TWO line three line four |
| Status | Compared |
|---|
How to use it
- Paste your content into Text A (original).
- Paste your content into Text B (changed).
- Press Compare!.
- You get Status back.
- Copy Link puts the current inputs in the URL, so bookmarking it brings the same numbers back.
What this tool does not do
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- Processing happens in your browser, so very large inputs are bounded by available memory.
- The output is a number, not a judgement. Deciding what it means is still your job.
Frequently asked questions
2 things: Text A (original) and Text B (changed). Every box already holds a working value, letting you treat it as a what-if tool rather than a data-entry form.
With the values loaded when the page opens, status comes out as Compared. The figure is derived from the inputs above, so it updates whenever they do.
Nothing is stored. The page has no back end to send data to, and holds your input only in memory.
No. There is no account, no usage cap and no trial period. The site is funded by advertising rather than by charging for the tools.
It implements the published definition directly, without shortcuts or approximations.