Question 1

Which file formats does this text diff tool support?

Accepted Answer

This tool supports any plain-text format, including code files (.js, .py, .java), configuration files (.json, .yaml, .xml), and text documents (.txt). If the content is plain text, it can be compared.

Question 2

How do I upload files for comparison?

Accepted Answer

You can upload files in two ways: 1) Click "Upload Left" or "Upload Right" to pick a local file; 2) Drag and drop a file into the corresponding editor. Maximum supported size is 10MB per file.

Question 3

What do the color highlights mean in diff results?

Accepted Answer

In diff results, red indicates deleted content, green indicates added content, and yellow indicates modified content. These highlights help you spot changes quickly.

Question 4

How do I merge changes to the other side?

Accepted Answer

Use the "Merge to Left" or "Merge to Right" buttons above the editor to apply selected changes to one side. This is useful for code review and document revision.

Question 5

Does it support large file comparison?

Accepted Answer

Yes. For best performance, keep each file under about 10MB. For larger files, compare them in sections.

Question 6

How can I save the comparison result?

Accepted Answer

Use the "Copy" button to copy either side, or use your browser's print feature to save the result. We recommend saving important content after you finish comparing.

Online Text and Code Diff Tool