Nodea

Linear chat interfaces make one assumption you can’t opt out of: the conversation is a single thread. Nodea rejects that assumption. Every Claude reply becomes a node on a canvas you can zoom, drag, and fork. The core workflow is three steps: ask, branch, navigate. Hover any message, hit branch, ask differently — the original path stays put. Both answers sit side by side on the canvas. You jump between them by clicking nodes, not scrolling.

The differentiating feature is the canvas itself, not just the branching mechanic. Nodea stores every path you’ve ever explored in a persistent project history, searchable across all branches with a single keyboard shortcut. Color-coding lets you tag which threads are worth keeping so a complex planning session doesn’t collapse into visual noise. The docs describe this as making your thinking take a shape you can see and edit — which is accurate for anyone who has lost a promising prompt thread because they edited the question.

Nodea fits research workflows, prompt iteration, and planning sessions where holding multiple alternatives open at once matters. It does not fit teams that need model flexibility: the vendor states support for Claude Haiku 4.5, Sonnet 4.6, and Opus 4.7 — and those are the only options. There is no API surface exposed for programmatic access, which rules out embedding Nodea into existing toolchains. The canvas interaction model is also desktop-oriented; the drag-and-zoom interface does not adapt well to mobile or tablet workflows.

The project is MIT-licensed with a self-hosted path documented for Supabase and Anthropic API setups, so teams with data residency requirements or API key budget control have an exit from the hosted version. Anonymous mode on the cloud product requires no email signup, which lowers the barrier for one-off exploration without committing to an account.