Seamside
Seamside is a free, local-first collaborative workspace platform that runs on users' own devices rather than on centralized servers. It allows individuals and groups to create shared spaces for a wide range of purposes, such as family scheduling, book club planning, scientific data collection, tabletop gaming, small business operations, and community garden management. Data resides on the users' own hardware and can sync directly between devices, ensuring privacy, control, and offline functionality. The platform offers customizable templates and tools including shared calendars, upvoting systems, character sheets, and data tables. Users can branch visualizations to explore data independently without disrupting others' views. Workspaces are collectively owned by the group rather than tied to a single administrator or a cloud service, reinforcing the principle of digital independence. Seamside is currently in beta and provides desktop applications for Windows, macOS, and Linux, with mobile versions in development. A server manager script is also available for self-hosted coordination. The project emphasizes a free model, local-first architecture, and resistance to corporate data harvesting, appealing to privacy-conscious communities, hobbyists, families, and small businesses. Example workspaces include a home hub for shared family calendars and task lists, a book club with meeting scheduling and book voting, a group project for pooling and analyzing environmental data, a tabletop RPG kit with dice and character sheets, a home bakery management tool with customer turnout predictions, and a community garden organizer with real-time plant care recommendations based on local weather.
- Category
- Apis
- Pricing
- Free
Problem solved
Seamside addresses the reliance on third-party cloud platforms for collaborative work, which often compromise privacy, require constant internet connectivity, and subject user data to surveillance or commercial exploitation. By keeping all data on users' own devices and enabling direct peer-to-peer synchronization, Seamside provides a private, offline-capable alternative for groups to work together on shared projects without depending on external servers.
Use cases
- Family scheduling and chore management
- Book club organization with calendar and voting
- Collaborative data collection and analysis for research groups
- Tabletop role-playing game (RPG) session support
- Small business operations (e.g., bakery management)
- Community garden coordination and environmental monitoring
Audience
- Hobbyists
- Business Users
- Researchers
Pros
- Privacy-first: all data stays on user devices
- Works offline with optional peer-to-peer sync
- Free to use with no subscription
- Cross-platform desktop support
- Flexible and customizable workspace templates
Cons
- Beta software with potential instability
- Mobile apps not yet available (planned)
- Limited third-party integrations and ecosystem
- Requires some technical know-how for server mode
- Small community and sparse documentation
Official website: https://seamside.com/
Canonical LambdaBase page: https://www.lambdabase.com/tools/seamside