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Registry Spy

Browse Windows registry files.

  • Completely free
  • Linux
  • Open source

At a glance

All of Registry Spy is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

This utility lets you view, browse, and explore Windows raw registry files. Features include: Fast on-the-fly parsing with no upfront overhead Open multiple hives at a time Searching Hex viewer Modification timestamps

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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