Installation Guide

Installing Captyne

Follow these steps to get Captyne running in After Effects. Because the installer is not yet code-signed, you may see security prompts from your operating system — this is normal. Select your platform below and we'll walk you through it.

⬇ Download Captyne for Windows
⚠️

Why do I see security warnings? The Captyne installer is not yet digitally signed. This means Chrome and Windows SmartScreen will flag it as unrecognized. This is completely normal for independent software — the steps below show you exactly how to proceed safely.

Step 1 — Download

Handling the Chrome Warning

1
Click the download button above
The installer will begin downloading. Chrome may show a warning bar at the bottom of the screen or in the downloads panel.
2
Open the Downloads panel
Click the ⌄ arrow next to the download, or press Ctrl + J to open Chrome's downloads page.
📄
Captyne_Setup.exe
This file may be harmful — flagged by Chrome
Delete
Keep anyway
3
Click "Keep anyway"
Chrome will ask to confirm. Click Keep anyway. The file is safe — this warning appears because the installer is new and unsigned, not because it contains malware.
Step 2 — Installation

Handling the Windows SmartScreen Prompt

1
Run the downloaded installer
Double-click Captyne_Setup.exe. Windows SmartScreen will show a blue "Windows protected your PC" dialog.
Windows Security
🛡 Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.
More info
Don't run
2
Click "More info"
This reveals additional options. Do not click "Don't run" — click the small More info text link instead.
3
Click "Run anyway"
After clicking More info, a Run anyway button will appear. Click it to proceed with installation.
🛡 Windows protected your PC
App: Captyne_Setup.exe   Publisher: Unknown Publisher
Run anyway
Don't run
4
Complete the installer
Follow the on-screen steps. The installer will set up Captyne and the required runtime components. After Effects must be closed during installation.
Step 3 — Launch

Opening Captyne in After Effects

1
Open After Effects
Launch After Effects. If it was open during installation, restart it now.
2
Open the plugin
Go to Window → Extensions → Captyne. If you don't see it, restart After Effects and try again.
3
Sign in and activate
Open the Account tab, enter the email and password of your captyne.com account, and click Sign In & Activate. Beta testers use the password they set from their approval email. No account yet? Create one.
4
Optional: get the offline model
For free, private transcription on your own PC, choose Offline / Local on the Setup tab and click Download Now to get the 3 GB Whisper model. Offline transcription on Windows needs an NVIDIA RTX 20-series or GTX 16-series GPU or newer. On other PCs, use the Managed API or your own OpenAI, Groq or AssemblyAI key.
Step 1 — Download & Open

Handling the macOS Gatekeeper Warning

macOS blocks apps from unregistered developers by default. Captyne is safe — follow these steps to allow it to run.

1
Download and double-click the installer
Download Captyne_Mac.pkg and double-click it. macOS will immediately block it and show this dialog — click Done (do not click Move to Bin).
⚠️
"Captyne_Mac.pkg" Not Opened
Apple could not verify "Captyne_Mac.pkg" is free of malware that may harm your Mac or compromise your privacy.
Move to Bin
Done
2
Open System Settings → Privacy & Security
Go to  Apple menu → System Settings → Privacy & Security. Scroll down to the Security section. You will see a message saying the pkg was blocked — click Open Anyway.
🔒 Security
Allow applications from
App Store & Known Developers
"Captyne_Mac.pkg" was blocked to protect your Mac. Apple could not verify it is free of malware that may harm your Mac.
Open Anyway
3
Confirm "Open Anyway"
macOS will show one final confirmation dialog. Click Open Anyway (not Move to Bin). You may be asked for your Mac password to proceed.
⚠️
Open "Captyne_Mac.pkg"?
Apple is not able to verify that it is free from malware. Don't open this unless you are certain it is from a trustworthy source.
Move to Bin
Open Anyway
Done
4
Complete the installer
The macOS package installer will open. Click Continue through the steps and enter your Mac password when prompted. After Effects must be closed during installation.
Step 2 — Launch

Opening Captyne in After Effects

1
Open After Effects
Launch After Effects. If it was open during installation, restart it now.
2
Open the plugin
Go to Window → Extensions → Captyne. If you don't see it, restart After Effects and try again.
3
Sign in and activate
Open the Account tab, enter the email and password of your captyne.com account, and click Sign In & Activate. Beta testers use the password they set from their approval email. No account yet? Create one.
4
Optional: get the offline model
For free, private transcription on your Mac, choose Offline / Local on the Setup tab and click Download Now to get the 3 GB Whisper model, or double-click Download Captyne Model on your Desktop.
💡

Apple Silicon only. Captyne for Mac requires macOS 12 or later on Apple Silicon (M1, M2, M3, M4). Intel Macs are not supported.

Need help?

If you run into any issues during installation, we're here to help.

[email protected]