Callboard review
A deep open-source toolkit for CFP workflows, speakers, agendas, and public schedules.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Callboard is open-source event scheduling software for organizers managing calls for proposals, proposal review, speaker onboarding, agenda planning, room conflicts, and published programmes. Its scope suits conferences and event teams that need one system spanning submissions through the public schedule. The web, API, and self-hosted deployment options support teams that want control over their event operations and programme data.
Its strongest area is the connection between proposal operations and agenda planning. Organizers can build CFP forms with conditional questions, participant rules, close dates, and track routing, then run weighted, multi-round reviews through assigned reviewer workspaces. The speaker portal handles profiles, headshots, materials, tasks, and programme-copy corrections. Once sessions are selected, teams can plan by day, week, track, room, or conflict view, with room and speaker overlap detection and automatic placement of remaining sessions. This makes Callboard a strong fit for complex programmes with multiple tracks, rooms, reviewers, and speakers.
The public-facing layer includes speaker directories, search, filters, calendar feeds, and embeddable widgets, while the scoped API provides sessions, speakers, metadata, and OpenAPI documentation. Signed webhooks, exports, and integrations for Accelevents and Airtable extend its operational fit, with Svix also listed among its integrations. The trade-off is a focused ecosystem and a self-hosted operating model, so teams should choose Callboard when they value open-source control and detailed programme workflows. Teams seeking a broader event platform or a native attendee app should consider alternatives centered on those needs.
Callboard pros and cons
- Where it wins
- Weighted multi-round reviews with assigned reviewer workspaces
- Conflict-aware agenda planning with room and speaker overlap detection
- Public schedules with search, filters, feeds, and embeddable widgets
- Where it doesn't
- Self-hosted deployment requires the team to manage its own environment
- Integration coverage centers on Accelevents, Airtable, and Svix
- Attendee-facing delivery centers on web schedules rather than a native app
Callboard fact sheet, pricing and score →
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