The best real-time collaboration infra in 2026

Across the leading reviewed tools, teams mainly choose between document-centric editing, app-embedded collaboration, and lower-level messaging. Tiptap stands out for customizable rich-text editors with co-editing, offline sync, and import/export, while Liveblocks emphasizes ready-made presence, comments, notifications, and AI copilots for SaaS products. Ably Realtime caters more to developers needing durable pub/sub, chat, and global-scale realtime delivery."