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RegistryChangesViewRegFromApp
Free

Freeware from NirSoft with no paid tier.

 Free

Freeware from NirSoft; free to redistribute as long as nothing is charged.

Windows Windows
  • Compares snapshots, the live Registry or shadow copies
  • Exports changes as a .reg file that can apply or undo them
  • Produces ready-to-import .reg files from a program's Registry writes
  • Can show original values from before the changes
  • Results include unrelated changes made by Windows and other programs
  • Snapshots that include SAM or SECURITY hives must be stored carefully
  • Official requirements list Windows versions up to Windows 10
  • Separate 32-bit and 64-bit builds must match the program being traced
Downloadable app Downloadable app
Closed source Closed source
License: Freeware License: Freeware
Not stated if an account is needed No account needed
Works offline Works offline

Checked October 8, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.