Unit test program for the core cryptographic function library currently used by Windows.
Publisher’s description
What is SymCrypt?
SymCrypt is an open-source program for Windows from Microsoft. It is written in C.
Installation and requirements
Official installers exist for 64-bit and ARM64 as Portable. It runs without installation (portable).
Updates and version history
The current version is 103.13.0, released on August 12, 2026. 2 versions are listed since January 29, 2025, each with links to its own installer files. That is about 1.3 releases a year.
Popularity and file types
The source code on GitHub (microsoft/SymCrypt) has 896 stars.
Project description on GitHub: “Core cryptographic library for Windows, Azure Linux and other products”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Native ARM64 build for Windows on Arm
- Portable: runs without installation
In short: SymCrypt is an open-source Windows tool for 64-bit and ARM64 PCs.
Is SymCrypt 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:
90EA7631331D23A43E0ABC7F7AF89B44BDA67CFA183A70A8B76D988D9D3036B8· 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 2 years · about 1.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 103.13.0Latest | August 12, 2026 | — | 64-bit ZIPARM64 ZIP |
| 103.8.0 | January 29, 2025 | — | 64-bit ZIPARM64 ZIP |
Install from the command line
Silent install ›winget install --id Microsoft.SymCryptUnitTest -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Microsoft
- Licence
- MIT
- Price
- Free
- Source code
- github.com/microsoft/SymCrypt
- Written in
- C
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, ARM64
- Installer
- Portable
- Version
- 103.13.0
- Released
- August 12, 2026
- Added to the catalogue
- February 12, 2026
- Versions listed
- 2
- Updates / year
- 1.3
- GitHub stars
- 896
- GitHub forks
- 90
- Website
- github.com
- winget ID
- Microsoft.SymCryptUnitTest
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is SymCrypt free?
Yes. SymCrypt is open-source software under the MIT licence.
Is SymCrypt 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 SymCrypt 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 SymCrypt run on ARM (Windows on Arm)?
Yes, there is a native ARM64 installer.
Where can I download an older version of SymCrypt?
The versions page lists all 2 versions with links to their official installer files, back to January 29, 2025.
Can I use SymCrypt without administrator rights?
Yes, it is portable: unpack and run it.
