The Freeform plugin brings a powerful sandboxed JavaScript environment to Obsidian, allowing users to create and run custom scripts directly in their notes. With support for importing ESM modules, displaying dynamic content, and injecting styles, it facilitates creative and data-driven workflows. Inspired by Observable, the plugin lets users build interactive visualizations, habit trackers, or custom data manipulations using tools like DataView or third-party libraries. Scripts run in isolated iframes for safety, and users can use the display() function to render outputs, such as charts or tables, within their notes.