Download for Windows, macOS, or Linux. No account required.
Free for 30 days with all features included.
Windows builds are code-signed by GLACIERLENS LLC with an EV certificate. SmartScreen may briefly offer "Run anyway" while the new certificate builds reputation. This is expected; confirm that the prompt shows GLACIERLENS LLC as the publisher.
You'll see this screen:
"Windows protected your PC — Microsoft Defender SmartScreen prevented an unrecognized app from starting..."
Here's what the Windows SmartScreen warning looks like:
Step 1: Initial warning
Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.
Click the highlighted "More info" link
Step 2: After clicking "More info"
Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.
App: GlacierLens.Nidra.Setup.exe
Publisher: GLACIERLENS LLC
Click the highlighted "Run anyway" button to proceed
Authenticity check: Only continue when the Windows prompt identifies the publisher as GLACIERLENS LLC and the installer came from the official download link above.
Click the download button above. The file downloads directly from our official GitHub releases.
On Windows, run the installer. On macOS, open the .dmg and drag Nidra to Applications.
On Linux, make the AppImage executable and open it.
Windows installers are code-signed by GLACIERLENS LLC.
On Windows, follow the installer prompts and launch Nidra when installation completes. On macOS, launch Nidra from Applications. On Linux, launch the AppImage.
Yes. Windows builds are code-signed by GLACIERLENS LLC with an EV certificate. A new certificate may still trigger SmartScreen while it builds reputation; verify the publisher name before choosing "Run anyway." macOS builds are signed with an Apple Developer ID certificate and notarized by Apple. Linux AppImages are unsigned, which is standard for AppImages.
Windows installers are code-signed by GLACIERLENS LLC with an EV certificate. macOS builds are signed with an Apple Developer ID certificate and notarized by Apple. Linux AppImages are unsigned, which is standard for AppImages.
Nidra is privacy-first. All your data stays on your machine. We use anonymous analytics to understand feature usage, but we never collect your API endpoints, request data, or credentials. The app requires an internet connection every 14 days to verify your license, but otherwise works offline. See our Privacy Policy for full details.
Windows: Settings → Apps → Nidra → Uninstall
macOS: Drag Nidra from Applications to Trash
Linux: Delete the AppImage file
Your data is stored separately and won't be automatically deleted (in case you reinstall later).
You can manually delete %APPDATA%\nidra (Windows), ~/Library/Application Support/nidra (macOS),
or ~/.config/nidra (Linux) to remove all traces.
Yes! The 30-day trial includes all features with no restrictions. After the trial, you'll need a paid license. Personal licenses are for individual use, while Team and Enterprise licenses support multiple users. See our Terms of Service for full details.