InnoUnpacker is a graphical user interface (GUI) for these console applications that makes the usage more comfortable.
The executable setup to be processed can be loaded via a file selection dialog, just by drag & drop, using the command line or by an entry in the Windows context menu for exe files.
Immediately after opening, the basic file info of the setup is displayed.
All other functions are activated by clicking on one of the buttons:
- General information about the setup
- A list of all included files
- All supported languages
- Verify setup file
- Start file extraction
- Select destination directory for extracted files
- Optionally, you can specify whether only the installation script or the files matching a filter are to be extracted.
Publisher’s description
What is InnoUnpacker?
InnoUnpacker by Dr. J. Rathlev is open-source Windows software in the archivers category. It ranks 46th by popularity among archivers in this catalogue. It is written in Pascal.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 32-bit Windows. The main installer is 4.3 MB. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Popularity and file types
The source code on GitHub (jrathlev/InnoUnpacker-Windows-GUI) has 343 stars. Similar programs include 7-Zip, PeaZip and WinRAR.
Project description on GitHub: “Inspect and unpack InnoSetup archives”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Updated in the last two months
- Small download (4.3 MB)
Cons
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
In short: InnoUnpacker is an open-source archiver tool for 32-bit PCs. Administrators can deploy it unattended.
Is InnoUnpacker safe to download?
- The file is served by rathlev-home.de, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
6F2BD04226F8A5EDA30534B90B460C3A0C1B07BBB5DA0EA5A0DFFBFC8253A1D2· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- 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 |
|---|---|---|---|
| 2.2.13Latest | October 11, 2026 | 4.3 MB | 32-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id JurgenRathlev.InnoUnpacker -escoop install extras/innounpackerinnounpacker-setup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- Dr. J. Rathlev
- Category
- Archivers
- Licence
- MPL or LGPL-2.0-or-later
- Price
- Free
- Source code
- github.com/jrathlev/InnoUnpacker-Windows-GUI
- Written in
- Pascal
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 2.2.13
- Released
- October 11, 2026
- Added to the catalogue
- October 11, 2026
- Versions listed
- 1
- GitHub stars
- 343
- GitHub forks
- 46
- Website
- rathlev-home.de
- winget ID
- JurgenRathlev.InnoUnpacker
- Scoop package
- extras/innounpacker
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is InnoUnpacker free?
Yes. InnoUnpacker is open-source software under the MPL or LGPL-2.0-or-later licence.
Is InnoUnpacker safe to download?
The download comes from rathlev-home.de, 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 InnoUnpacker 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.
Can InnoUnpacker be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does InnoUnpacker run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
What are alternatives to InnoUnpacker?
7-Zip, PeaZip, WinRAR, Zstandard and UPX. The alternatives page compares them.
