// Identity, secrets & agent security
Download Opav1.21.3
Official Opa downloads for Windows. Open Policy Agent (OPA) is an open source, general-purpose policy engine.
OFFICIAL DOWNLOADDirect official link
v1.21.3 · 2026-10-19
Every button links straight to the official file (github.com). AIMap does not host or modify installers. Checked 2026-10-23.
01All files in the latest release
Release notes →From open-policy-agent/opa on GitHub Releases · v1.21.3 · 2026-10-19. Sizes and SHA-256 are as published by GitHub.
| System | File | Type | Size | SHA-256 |
|---|---|---|---|---|
| Windowsx64 | opa_windows_amd64.exe | Installer | 61.6 MB | c8f08ee67544be8ca47b063f6656091c1dcb4aba6434c2cd4c5b498b0dcfa115 |
02How to install Opa
Windows
- Download the .exe / .msi above (or the .zip portable build).
- Double-click to install. If SmartScreen warns, check the publisher name before choosing “Run anyway”.
FAQ
Is this the official Opa download?
Yes. Every link points to an official source: github.com. AIMap does not host, repackage or modify any installer; we re-check the links on every data refresh (last 2026-10-23).
What is the latest version of Opa?
v1.21.3, released 2026-10-19 (latest stable release on GitHub Releases, checked 2026-10-23).
Which Windows file should I pick?
Most PCs are x64 (Settings → System → About → “System type: 64-bit operating system, x64-based processor”). Pick ARM64 only on ARM laptops such as Snapdragon X machines. .exe/.msi are installers; .zip is a portable build you unzip and run.
How do I verify the download?
Compare the SHA-256 shown in the file table (published by GitHub for each release asset) with your file: macOS/Linux `shasum -a 256 <file>`, Windows PowerShell `Get-FileHash <file> -Algorithm SHA256`.
Is Opa free?
Pricing model: Open source; licence Apache-2.0. Check the official site for current plans.
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