Universal Diff Tool

Compare JSON, YAML, CSV & Properties

Upload two files or paste content inline to compare JSON, YAML/YML, CSV, .properties / .env or plain text — all processed locally with a Monaco diff editor.

Auto-detect format from file extension or choose manually.
Normalizes structured data for a cleaner, more readable diff.
No data leaves your browser — ideal for dev, logs, and config files.

Provide Input A (original) and Input B (modified) below, select a format, and click Compare.

Input A (Original)

Upload file A:

Or paste content A:

Input B (Modified)

Upload file B:

Or paste content B:

Format: Status: Waiting for input…

≠ Compare JSON, YAML, CSV & Properties

Input A (Original)

Input B (Modified)

Compare JSON, YAML, CSV & Properties