Cosense
Team knowledge wiki with instant linking and real-time collaboration
About Cosense
Cosense (formerly Scrapbox) is a team knowledge management and wiki platform that turns experience into shared knowledge through effortless writing and instant linking. Every note, doc, and page connects into a network of related ideas, with secondary links automatically appearing in page footers to surface hidden connections. The platform supports real-time multi-user editing, multimedia content including images, code snippets, and links, and can be used for remote work, onboarding, knowhow databases, support documentation, and code reviews.
Pros & Cons
Pros
- Unique instant linking system automatically builds a connected knowledge network between pages
- Extremely fast and lightweight editor with no lag during real-time multi-user collaboration
- Secondary links in page footers surface hidden connections you would not discover manually
- Free tier generous enough for personal use, study groups, and small non-profits
- On-premise deployment option available for organizations with strict data sovereignty requirements
Cons
- Cannot set independent view and edit permissions per page, only per project
- Pages are not organized hierarchically by default and lack automatic structuring
- Primarily designed for Japanese market with pricing in JPY and limited English documentation
- No native mobile app, relies on mobile web browser experience
- Free plan limited to 100-300 pages depending on invited members
Key Features
Instant Linking
Type brackets around any word to create instant links between pages, building a connected knowledge network automatically
Real-Time Collaboration
Multiple team members can edit the same page simultaneously with changes visible instantly
Secondary Link Discovery
Pages automatically surface related content in footers by analyzing link connections across your knowledge base
Multimedia Support
Embed images, videos, code snippets, and external links directly within notes for rich documentation
Google & G Suite SSO
Authenticate via Google or G Suite single sign-on for seamless team access management
On-Premise Option
Available as cloud SaaS or on-premise deployment with email auth, Azure AD, and GitHub Enterprise support
Chrome Extension
Save web pages and content directly to your Cosense projects from any browser tab
TLS/SSL Encryption
All data transfers are encrypted with TLS/SSL to ensure privacy and security of team knowledge
Pricing
- Up to 100 pages
- Personal or non-profit use
- Invite members to unlock more pages (up to 300)
- TLS/SSL encryption
- Google SSO
- Unlimited pages
- Commercial use
- Real-time collaboration
- On-premise option available
- Azure AD & GitHub Enterprise SSO
- Priority support
- Volume discounts for 200+ users
Best For
Team Knowledge Base
Build an interconnected wiki where team knowledge is captured, linked, and discoverable across departments without administrator overhead
Remote Onboarding
Create living onboarding documentation that new hires can navigate through linked topics while contributing their own notes in real-time
Engineering Documentation
Maintain code reviews, architecture decisions, and technical specs with embedded code snippets and automatic cross-referencing
Support & FAQ Management
Staff update and accumulate expert answers to support questions collaboratively without needing a dedicated administrator
