Folder Compare — Tutorial

Choose two local folders, then open a full-screen compare desk with side-by-side directo…

Folder Compare: Diff two local folders side by side

Features

Dual cards for folder 1 and folder 2; prefers File System Access (read-only), with a system folder picker fallback.
Full-screen desk: Back, format multi-select, sort; expandable trees with recursive collapse.
Row diffs (same tokens as Text Compare): left-only red, right-only green, changed folders amber; hover links matching paths.
Synced scrolling; Back keeps selections; Reset clears both.

Use cases

Check delivery folders before and after handoff.

FAQ

What limitations should I know?

Folder listings are read locally only; nothing is uploaded.

When might it fail?

Directory pickers need a secure context (https or localhost).

What else should I watch for?

Diffs use relative paths (presence), not byte-level file content.

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