OpenCards
Organize Your Knowledge
About
Transform your Markdown notes into interactive knowledge cards. Organize, review, and access your information seamlessly across devices. Supports rich formatting, including math equations and code.
What's New in OpenCards
1.3
May 18, 2026
Fixed known issues and improved the user experience.
Subscription plans
OpenCards Pro
Unlock features including increased limits and editing
Developer apps
FAQ
What is OpenCards?
OpenCards is a utility app that transforms your Markdown notes into browsable knowledge cards. It helps you organize, review, and access your information across your devices.
How does OpenCards organize knowledge?
You can create sections to group cards by topic, such as class notes or research papers. Cards can be browsed in a carousel or searched across your entire collection.
Does OpenCards support advanced formatting?
Yes, OpenCards renders full Markdown, including support for math equations using KaTeX, syntax-highlighted code blocks, and tables. It also offers both light and dark modes.
How does OpenCards sync across devices?
OpenCards utilizes iCloud sync to automatically update your cards across all your Apple devices, allowing you to start on one and continue on another.
Can I import notes from other sources into OpenCards?
Yes, you can import Markdown files in bulk by pasting a GitHub folder URL. This is useful for bringing in shared notes or study materials.
What are the pricing details for OpenCards?
OpenCards is free to download and use. There is an optional 'OpenCards Pro' subscription available for $0.99 per month for enhanced features.
Does OpenCards have ads?
No, OpenCards does not contain advertisements. The app is free with optional in-app purchases for its Pro subscription.
What devices are supported by OpenCards?
OpenCards is available on Mac, iPhone, and iPad, ensuring a consistent experience across your Apple ecosystem.