Spark ideas. From personal notes to journaling, knowledge bases, and project management, Obsidian gives you the tools to come up with ideas and organize them.

Obsidian is available on all major platforms. Download Obsidian for iOS, Android, macOS, Windows and Linux.

Obsidian Help Welcome to the official Obsidian Help site, where you can find tips and guides on how to use Obsidian. For API documentation visit the Obsidian Developer Docs.

Erica started Obsidian in 2020 to build the perfect note-taking app™ for her notes.

Install Obsidian on Windows Open your browser and go to Download Obsidian. Under Windows, click Universal to download the installation file. Open the installation file and follow the …

Obsidian is a private and secure space for your thoughts. You can use our apps without sharing any personal information, and your data is stored locally on your device, making it inaccessible …

Instead of providing you with an opinionated and assembled product, [[About Obsidian]] gives you a foundation and numerous functional building blocks to discover and build your own solution. …

Cross-platform apps Obsidian is available on all major platforms, so you can sync notes to any device. Seamlessly work across Mac, Windows, Linux, iOS and Android.

Feb 20, 2025 · Obsidian is free for all purposes, including personal, commercial, and non-profit use. To support our development and help keep Obsidian 100% user-supported, you can …

Obsidian Mobile is blazing fast, so you can jot things down before you forget them. With the customizable toolbar and touch-friendly gestures, zip around your second brain with ease.