OpenSession review
A free, self-hosted platform for CFPs, speaker onboarding, review, and scheduling.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OpenSession is an open-source platform for conference organizers managing calls for papers, submissions, reviews, scheduling, and speaker administration. It supports public CFPs with custom MDX forms, conditional logic, and file uploads, while multi-speaker submissions include autosaved drafts. Speakers receive a dedicated portal for profiles, submissions, tasks, and session materials, making it suited to conferences that need a structured workflow from proposal intake through event preparation.
The product is described as free under the MIT license and is designed for self-hosted deployment. Its listed platforms are web, API, and self-hosted, with the deployment model centered on a Cloudflare Worker using Cloudflare D1 and R2. Cloudflare usage may still create infrastructure charges, so the software cost and operating cost should be considered separately. There are no paid tiers described, making OpenSession most relevant to organizers who can manage their own deployment rather than teams seeking a fully managed service.
Its strongest functional area is the connection between review, scheduling, and onboarding. Reviewers can vote, score, comment, and move submissions through accept or decline queues. Organizers can then schedule sessions with room and speaker conflict detection, assign onboarding tasks with due dates, and send automated decision emails, reminders, and ICS calendar invitations. Embeddable agendas and speaker galleries extend the workflow through JSON and ICS feeds. Choose OpenSession when free, open-source control and end-to-end CFP operations matter; choose an alternative if managed hosting or a broader named integration ecosystem is the priority.
OpenSession pros and cons
- Where it wins
- Custom CFP forms support conditional logic and file uploads.
- Conflict-aware scheduling helps avoid room and speaker clashes.
- Speaker portals, tasks, reminders, and calendar invites support onboarding.
- Where it doesn't
- Self-hosting requires a Cloudflare Worker with D1 and R2.
- Cloudflare usage may add infrastructure charges.
- Third-party ecosystem connections are centered on API, JSON, and ICS feeds.
OpenSession fact sheet, pricing and score →
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