Documents that run like apps
Capsule packs your entire app — UI, data, and everything — into a single portable .capsule file. No cloud. No accounts. Just share it.
Download for Linux Try Web Preview
Download for other platforms ↓
AI APP GENERATION
Generate & update apps using AI
Capsule turns simple prompts into complete, self-contained desktop applications. No cloud servers, no databases to configure, no complex build setups.
01 / PROMPT YOUR IDEA
Describe what you need
Describe the application, layout, or features you want to build.
02 / INSTANT CAPSULE APP
Self-contained output
Generates a complete single-file .capsule container with HTML UI, schema, and local SQLite data.
03 / ITERATE ON THE FLY
Live AI updates
Modify features, dark mode, or schemas on the fly via direct AI prompts or MCP coding tools.
Why Capsule?
Create a Shareable File for Your Personal App
Capsule brings the simplicity of documents together with the power of native desktop and mobile applications.
01 / PORTABILITY
What If an App Was Just a Document?
Forget cloud accounts, servers, and subscriptions. Capsule bundles your user interface, media assets, and local database into a single, portable .capsule file.
Send it via WhatsApp, AirDrop, or email just like a PDF or Word document. When the recipient taps the file, it launches instantly with all your data preloaded, ready to use.
02 / PRIVACY FIRST
100% Private by Design
Capsule keeps your personal data where it belongs, on your device. Everything you create is saved directly into the file, giving you complete ownership with zero cloud servers.
Write tasks, list recipe notes, or save project logs. There is no cloud storage, no account registration, and no network requirement. Everything is secured right inside the file.
03 / CROSS-PLATFORM
One File, Every Operating System
Capsule files are completely cross-platform by default. Open the exact same file on macOS, Windows, or Linux without conversion or special setup.
Your apps launch with full desktop performance on any computer, with native iOS and Android support coming soon.
GET CAPSULE
Ready to run portable apps?
Capsule is completely free. Download the host player for your platform and open any .capsule file in seconds.
Desktop
macOS
macOS 12 Monterey or later
Download for Apple Silicon (M-series) Download for Intel Mac
Windows
Windows 10 or later (64-bit)
Download Installer (EXE) System Installer (MSI)
Linux
Ubuntu / Debian / Fedora
Download Debian / Ubuntu (.deb) Download RedHat / Fedora (.rpm) Download AppImage (.AppImage)
Web
Web
Runs in your browser for a quick preview. Cannot open or save files directly on your computer.
Mobile (Coming Soon)
iOS
iOS 16 or later
App Store
Android
Android 9 or later
Google Play
