WordInstant

Text diff.

Paste two versions of a text and see additions and deletions highlighted. Line-by-line or word-by-word. All local.

Tool 12DeveloperLive100% local
§ What changed

Clear deltas.

Useful for spotting edits in prose, verifying a refactor, or confirming that an AI rewrite kept the facts straight.

Which diff algorithm is used?

The jsdiff library — a direct implementation of the Myers diff algorithm. It produces minimal, readable edit scripts for text.

Is there a three-way merge view?

Not yet. This is a straightforward A-vs-B compare; three-way and conflict resolution are out of scope for now.

Does whitespace count?

Yes. In word-by-word mode, whitespace is part of the compared stream (via diffWordsWithSpace), so indentation and spacing changes surface in the diff.