A tool for converting hard drives partitioned by the MSDOS-style "MBR" scheme to the GPT (GUID partition table) partitioning scheme, while retaining all data on the hard disk.
Publisher’s description
What is gptgen?
gptgen by xorangekiller (Karl Lenz) is open-source Windows software. It is written in C++.
Installation and requirements
The publisher provides Portable installers for 64-bit Windows. It runs without installation (portable).
Updates and version history
The current version is 1.3, released on February 23, 2026. The version history goes back to April 29, 2018: 2 releases, all linked to the official files. That is about 0.3 releases a year.
Popularity and file types
The source code on GitHub (xorangekiller/gptgen) has 69 stars.
Project description on GitHub: “Gptgen is a tool to convert an MBR partition table to GPT while retaining all data on the disk.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
Cons
- No native ARM64 build
In short: gptgen is an open-source Windows tool for 64-bit PCs.
Is gptgen safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
27D5E55EA7ACAEC4EF992DF50D6078C2AA50566A64DB8CE93E5A5FAC31D0B7A1· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›2 versions over 8 years · about 0.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 1.3Latest | February 23, 2026 | — | 64-bit ZIP |
| 1.2.1 | April 29, 2018 | — | 64-bit ZIP32-bit ZIP |
Install from the command line
Silent install ›winget install --id KarlLenz.gptgen -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- xorangekiller (Karl Lenz)
- Licence
- ISC
- Price
- Free
- Source code
- github.com/xorangekiller/gptgen
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 1.3
- Released
- February 23, 2026
- Added to the catalogue
- October 7, 2025
- Versions listed
- 2
- Updates / year
- 0.3
- GitHub stars
- 69
- GitHub forks
- 13
- Website
- github.com
- winget ID
- KarlLenz.gptgen
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is gptgen free?
Yes. gptgen is open-source software under the ISC licence.
Is gptgen safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install gptgen with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does gptgen run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of gptgen?
The versions page lists all 2 versions with links to their official installer files, back to April 29, 2018.
Can I use gptgen without administrator rights?
Yes, it is portable: unpack and run it.