GPU export
NVIDIA and Intel graphics speed up export. Captions are drawn at the output size, so text stays sharp up to 4K.
Windows 10 & 11
Animated captions on your Windows PC
Load a video, let AI time every word, pick one of 108 caption styles and export up to 4K. GPU export with NVIDIA and Intel, and CPU export on any PC.
- Windows 10 & 11, 64-bit
- Free plan included
- No account or card needed
Real exports from the app. Tap a style to preview it
Built for your PC
Your PC does the work, so your footage stays put
Captixa is a desktop app, not a website you upload to. Transcription runs on your PC with local Whisper, or on Groq or OpenAI with only the audio sent. Styling, editing and export all happen on your machine.
Export uses your graphics card when it can: NVIDIA NVENC or Intel Quick Sync. No supported GPU? Captixa exports on the CPU instead, and the video comes out the same.
On Windows, Captixa gives you
- GPU export with NVIDIA NVENC and Intel Quick Sync
- Falls back to the CPU on any PC
- Local Whisper runs fully offline, no key needed
- MP4 at Source, 720p, 1080p, 2K or 4K, plus SRT
Everything a caption needs, on your own computer
Works without a GPU
No graphics card? Captixa exports on your CPU. It takes longer, but the video comes out exactly the same.
Offline transcription
Download a local Whisper model once, from 75 MB to 3 GB, and transcribe with no internet and no API key.
Keys stay on your PC
Groq, OpenAI and Gemini keys are stored on your computer only and used to call those providers directly.
Projects that save themselves
Autosave after every edit. Projects point to your footage and never make a copy of it.
Switch to a Mac any time
A Pro license works on Windows and macOS, one computer at a time. Switch from your dashboard.
Captioning on Windows in three steps
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1
Download and install
Run the installer. If Windows SmartScreen appears for a new release, choose More info, then Run anyway.
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2
Choose a transcription engine
In Settings, pick local Whisper (free and offline) or paste a Groq or OpenAI key.
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3
Caption and export
Load a video, pick a style, and export an MP4 up to 4K or an SRT file.
How to install Captixa on Windows
Step by step, including what to do when Windows shows a security prompt for a new app.
Install on Windows 10 or 11 About 2 minutes
- Download the installer. Get it from the download page. The file name ends in _x64-setup.exe.
- If your browser holds the download, keep it. In Edge, open Downloads, choose the three dots next to the file, then Keep, Show more, Keep anyway. In Chrome, choose Keep.
- Double-click the installer. If a blue "Windows protected your PC" box appears, choose More info, then Run anyway. This shows for new releases and is covered below.
- Follow the installer. It installs for your Windows account, so you do not need an administrator password.
- Open Captixa from the Start menu or the desktop shortcut, and pick a transcription engine in Settings.
Unblock the installer with PowerShell If Run anyway does not appear
- Open PowerShell. Press the Windows key, type PowerShell and press Enter.
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Paste this command and press Enter. It removes the "downloaded from the internet" mark from the installer in your Downloads folder.
Unblock-File -Path "$env:USERPROFILE\Downloads\Captixa_*_x64-setup.exe" - Run the installer again. It now opens without the SmartScreen warning.
Prefer not to use PowerShell? Right-click the installer, choose Properties, tick Unblock at the bottom of the General tab, then choose OK.
Fixes for common Windows problems
Most of these are one-time security prompts, and each takes a minute to fix.
"Windows protected your PC"
This is Microsoft SmartScreen. It warns about new releases until they have been downloaded enough times to build a reputation. Choose More info, then Run anyway.
My antivirus removed the installer
Some antivirus tools block apps they have not seen before. Restore the file from quarantine and allow it, then run the installer again.
The installer downloads WebView2
Captixa uses Microsoft Edge WebView2, which Windows 11 already has. On some Windows 10 PCs the installer fetches it for you, so stay online while it runs.
Export is slower than I expected
Update your NVIDIA or Intel graphics driver. Without a supported GPU, Captixa exports on the CPU, which takes longer for 2K and 4K.
Update
Download the new installer and run it over the old version. Your settings, API keys and license stay in place.
Uninstall
Open Settings, then Apps, then Installed apps. Find Captixa, choose the three dots, then Uninstall. Your video files are never touched.
System requirements
What your Windows needs
No gaming PC needed: Captixa exports on the CPU on any computer.
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Operating systemWindows 10 or Windows 11, 64-bit
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ProcessorAny 64-bit processor
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Memory4 GB of RAM, 8 GB or more recommended
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Disk spaceAbout 500 MB, plus 75 MB to 3 GB for each local Whisper model
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Graphics (optional)NVIDIA GTX 1060 or newer, or Intel 6th gen or newer, for faster export
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InternetOnly for cloud transcription, translation and Roman-script conversion
Captixa on Windows, answered
Something else on your mind? Contact us and a real person will reply.
Does Captixa work on Windows 10 and Windows 11?
Yes. It runs on both, 64-bit.
Do I need a powerful PC or a graphics card?
No. Captixa runs on any 64-bit computer with 4 GB of RAM (8 GB recommended). An NVIDIA or Intel GPU on Windows makes export faster.
Which graphics cards speed up export?
NVIDIA cards with NVENC and Intel graphics with Quick Sync. Without one, Captixa exports on the CPU and the video comes out the same.
Why does Windows warn me about the installer?
Windows SmartScreen can warn about a new release before it builds up a reputation. Choose More info, then Run anyway. The install guide on this page shows every step.
Does it work offline?
Yes, with local Whisper: transcribing, styling, editing and exporting all work without internet. Translation and Roman-script conversion need a connection.
Can I use my license on a Mac too?
Yes. A Pro license works on Windows and macOS, on one computer at a time. Switch from your dashboard whenever you like.
Caption your next video on your Windows.
Every style on the Free plan, 5 videos a day. No account and no card needed.