Learn today. Remember tomorrow.

You do not need to settle it in one sitting. Explore different explanations, challenge assumptions and keep track of questions that remain open. Return a day, a month or a year later to add new evidence or change direction. Grid history shows who contributed and how the thinking developed, so you and others can build on the work already done.

Save useful ideas and highlight passages, then return to them in My Learning. Try explaining an idea before reopening the answer: recall helps strengthen memory and reveals gaps in your understanding. Connect new ideas to what you know and compare perspectives with others to discover questions you might have missed.

My Learning brings your grids, bookmarks and highlights together. Topics come from grid tags; Collections let you organise subjects, projects or anything you are exploring. Open a topic or collection to revisit your saved work and continue where you left off.

Use them to explain an idea, compare arguments, clarify terms, uncover assumptions and consider other perspectives. The tools were developed with Philosophy for All and philosopher and educator Peter Worley to help you question answers and build understanding. They support your judgement; important claims still need checking against their sources.

Anyone who wants to explore a question and return to it later. Students can organise subjects and revisit explanations for revision. Researchers can compare explanations, check sources and track open questions. Journalists and writers can keep claims, sources and counterarguments together. Curious learners can follow questions wherever they lead.

RationalGrid is a free, not-for-profit project. There are no paid pricing tiers, and the source code is publicly available on GitHub.

A free account includes Simple, Expanded and In-depth answers. Each person can have up to three AI requests in progress and make up to ten AI requests per minute; if a limit is reached, wait and try again.

Yes. Sign in with a free account and open an unlocked community grid. Select an idea to ask a follow-up question, post your own thought or challenge an answer. Your contribution stays connected to the idea you are responding to, so others can build on it. If the owner has locked the grid, you can still read it, but cannot add to it.

Yes. You can export the grid as Markdown and continue organising, linking and writing in Notion or Obsidian. See the complete Notion and Obsidian research workflow.