Download Formidable
Formidable is free and open source under the MIT license. Every release is built and published from the GitHub release workflow. What you download is exactly what you can audit on the source tree.
Latest release:
Windows (amd64)
| File | Description |
|---|---|
Formidable-windows-amd64-installer.exe | NSIS installer with WebView2 bootstrap. Installs to Program Files\Formidable, creates Start Menu and Desktop shortcuts. |
Formidable-windows-amd64.zip | Portable executable. Unzip anywhere; no installation required. |
Free code signing for Windows installers is provided by SignPath.io, certificate by the SignPath Foundation.
macOS (universal: Intel + Apple Silicon)
| File | Description |
|---|---|
Formidable-macos-universal.dmg | Universal .app bundle. Drag to Applications. |
The bundle is ad-hoc signed only (not Developer ID notarized), so Gatekeeper will block the first launch. Right-click Formidable.app → Open, or strip the quarantine attribute once:
xattr -d com.apple.quarantine /Applications/Formidable.app
Linux: Debian and Ubuntu
| File | Description |
|---|---|
Formidable-linux-amd64.deb | Debian package, amd64. |
Formidable-linux-arm64.deb | Debian package, arm64 (Raspberry Pi 4/5, ARM Chromebooks). |
Formidable-linux-amd64.tar.gz | Portable amd64 build. |
Formidable-linux-arm64.tar.gz | Portable arm64 build. |
sudo apt install ./Formidable-linux-amd64.deb
Runtime dependencies (libgtk-3-0, libwebkit2gtk-4.1-0, libayatana-appindicator3-1) are pulled in automatically by the .deb.
Linux: Fedora and RHEL
| File | Description |
|---|---|
Formidable-linux-amd64.rpm | RPM package built against Fedora 43. |
sudo dnf install ./Formidable-linux-amd64.rpm
Build from source
If you’d rather not trust the prebuilt artifacts:
git clone https://github.com/petervdpas/Formidable2.git
cd Formidable2
# requires Go 1.25+, Node 20+, and the Wails 3 CLI
wails3 task dev
Verifying
Each release page on GitHub includes auto-generated notes that link back to the source commit. Cross-reference the asset filenames against the release workflow to verify that artifacts were produced by GitHub Actions, not uploaded manually.