Question 1

What do the colors mean?

Accepted Answer

Added lines are highlighted in green, removed lines in red, and unchanged lines stay neutral, so you can scan differences at a glance.

Question 2

Is my text uploaded anywhere?

Accepted Answer

No. The comparison runs entirely in your browser; your text is never sent to or stored on a server.

Question 3

What is the difference between unified and side-by-side views?

Accepted Answer

Unified shows both versions interleaved in one column; side-by-side shows the original and modified text in two parallel columns.

Question 4

Can it compare code?

Accepted Answer

Yes. It works with any plain text, including source code, JSON, logs, and configuration files.

Question 5

Is there a size limit?

Accepted Answer

There is no fixed limit — large texts are compared locally, limited only by your device's memory and speed.

Diff Checker