A decompiler for the Papyrus script language used in Skyrim, Fallout 4, Fallout 76, and Starfield. It aims to produce a Papyrus Script file (.psc) from a .pex binary file. The decompiled script should recompile to a functionally equivalent PEX binary.
Publisher’s description
What is Champollion?
Champollion by Orvid 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).
Popularity and file types
The source code on GitHub (Orvid/Champollion) has 146 stars. On Windows it registers 1 file type, including .pex.
Project description on GitHub: “A PEX to Papyrus Decompiler for Skyrim, Fallout 4 and Starfield”
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: Champollion is an open-source Windows tool for 64-bit PCs.
Is Champollion 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:
EA53054276AC8006CCD3B323286BFBC6E34A454FA419D08DA9BD440CBD31B383· 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 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.3.2Latest | February 6, 2026 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id Orvid.Champollion -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Orvid
- Licence
- LGPLv3
- Price
- Free
- Source code
- github.com/Orvid/Champollion
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 1.3.2
- Released
- February 6, 2026
- Added to the catalogue
- February 6, 2026
- Versions listed
- 1
- GitHub stars
- 146
- GitHub forks
- 35
- Website
- github.com
- winget ID
- Orvid.Champollion
File types it opens (1)
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is Champollion free?
Yes. Champollion is open-source software under the LGPLv3 licence.
Is Champollion 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 Champollion 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 Champollion run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use Champollion without administrator rights?
Yes, it is portable: unpack and run it.