Ream review
A free web editor for collaborative LaTeX writing, with AI assistance billed separately by Anthropic.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Ream is a web-based LaTeX editor for researchers and academic writers who want to work together in a shared document. It combines real-time collaboration with contextual comments, so feedback can stay close to the relevant text. The editor compiles with PDF LaTeX, XeTeX, or LuaTeX, and includes project-wide search and customizable themes. Solo writers can also use it, but its coauthoring tools make it particularly relevant to small research teams.
Project continuity is a practical strength: writers can start a project in Ream or import source files from Overleaf and arXiv. Version history includes change tracking and the ability to revert to earlier versions, which supports review and recovery as a draft evolves. This gives teams a route to collaborate without giving up a record of changes. The product is web-based and cloud-deployed, with community and email support channels. Its feature set centers on editing and collaboration; teams that need verified citation tooling should consider an alternative with that capability.
The published description presents Ream as free, and the homepage invites users to try it for free. Access is also described through an early-access waitlist or user invitation, so teams should account for that onboarding route. The AI assistant can generate and edit LaTeX and answer questions, but it requires the user's Anthropic API key and Anthropic charges according to usage. That means the editor can be a fit for free teams comfortable managing those separate AI costs, while teams seeking bundled AI pricing or broader research-writing functions may prefer another option.
Ream pros and cons
- Where it wins
- Real-time coauthoring with contextual comments and feedback
- Version history includes change tracking and reverting
- Imports Overleaf and arXiv source projects
- Where it doesn't
- AI assistant requires an Anthropic API key and incurs usage charges
- Access may require an early-access waitlist or invitation
- No verified citation tooling
Ream fact sheet, pricing and score →
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