Freedom251 › Event Scheduling Software
Session Canvas
What Session Canvas is
Session Canvas is open-source software for managing conference submissions, reviews, agendas, speakers, and communications. It is MIT licensed and self-hosted on the organizer’s own Supabase project. Its form builder supports reordered questions, required fields, conditional rules, deadlines, and draft submissions. For reviews, organizers can route work by track, offer a passwordless evaluator view, and optionally use blind review. Agendas have day, room, and list views, with warnings for potential time, room, and speaker conflicts. Speakers can use magic links to check submission status, update profiles, and complete assigned tasks. Organizers can send templated acceptance and rejection emails, task reminders, and calendar invites that update when event details change. The software also provides embeddable schedule and speaker widgets, a public JSON schedule feed, and whole-event iCal export. Five public widgets can be browsed without logging in. Optional Airtable synchronization mirrors submissions to and from an Airtable base and is off by default. A seeded DevFlow Conf 2027 demo is available.
Who it suits
Session Canvas suits conference organizers managing calls for papers, reviews, schedules, speakers, and event communications. It fits organizers prepared to self-host on their own Supabase project.
What it does well
- MIT licensed and open source
- Supports track-based reviewer routing and optional blind review
- Agendas flag potential time, room, and speaker conflicts
- Speakers can manage tasks through magic links
- Publishes widgets, a JSON feed, and whole-event iCal
What to know first
- Requires self-hosting on the organizer’s own Supabase project
- Airtable synchronization is off by default
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Open source | MIT licensed · self-hosted on your own Supabase project | Free |
As sessioncanvas.dev lists them, read 11 Oct 2026. The maker's own page has the final word.
Getting started
- Open the Session Canvas website.
- Review the seeded DevFlow Conf 2027 demo.
- Set up hosting on your own Supabase project.
- Use the form builder to create a call for papers and set its questions and deadlines.
- Configure reviewer routing and build the agenda.
- Share public widgets or publish the schedule feed and whole-event iCal export.
Verdict
Session Canvas covers conference submissions through event publishing, with tools for organizers, reviewers, and speakers. It is free and MIT licensed, with hosting on the organizer’s own Supabase project.
Questions
Is Session Canvas free?
Yes. The listed Open source plan is free and is MIT licensed.
Where is it hosted?
It is self-hosted on the organizer’s own Supabase project.
Can speakers manage their own information?
Yes. Speakers can use magic links to check submission status, edit profiles, and complete assigned tasks.
Can it support reviews and scheduling?
Yes. It offers track-based reviewer routing, a passwordless evaluator view, optional blind review, and agenda views by day, room, or list.
What can organizers publish?
They can provide embeddable schedule and speaker widgets, a public JSON schedule feed, and whole-event iCal export. Five public widgets can be browsed without logging in.
Does it integrate with Airtable?
Optional synchronization mirrors submissions to and from an Airtable base. It is off by default.
Facts from Session Canvas's own pages
- Agenda
- Organizers can build agendas in day, room, and list views, with advisory warnings for time, room, and speaker conflicts. · sessioncanvas.dev, 11 Oct 2026
- Airtable
- Optional Airtable synchronization mirrors submissions to and from an Airtable base and is off by default. · sessioncanvas.dev, 4 Oct 2026
- Call for papers
- Its form builder supports reordered questions, conditional rules, required fields, deadlines, and draft submissions. · sessioncanvas.dev, 4 Oct 2026
- Communications
- The product supports templated accept and decline emails, task reminders, and calendar invitations with sequence updates when details change. · sessioncanvas.dev, 11 Oct 2026
- Demo
- The site offers a seeded DevFlow Conf 2027 demo with submissions, reviews, a scheduled agenda, and a live speaker. · sessioncanvas.dev, 11 Oct 2026
- Deployment
- The site describes the product as self-hosted on the user's own Supabase project. · sessioncanvas.dev, 11 Oct 2026
- Form builder
- Its form builder supports drag-to-reorder questions, conditional rules, required fields, and public calls for speakers with deadlines and draft submissions. · sessioncanvas.dev, 11 Oct 2026
- Hosting
- The site describes the product as self-hosted on the organizer’s own Supabase project. · sessioncanvas.dev, 4 Oct 2026
- Integration
- Optional Airtable sync mirrors submissions to and from an Airtable base and is off by default. · sessioncanvas.dev, 11 Oct 2026
- License
- The product is MIT licensed. · sessioncanvas.dev, 11 Oct 2026
- Product
- Session Canvas is open-source speaker and session management software for conferences, covering calls for papers, reviews, agendas, speaker portals, and communications. · sessioncanvas.dev, 4 Oct 2026
- Public data
- It provides embeddable schedule and speaker widgets, a public JSON schedule feed, and whole-event iCal export. · sessioncanvas.dev, 4 Oct 2026
- Public widgets
- Its public pages include session and speaker lists, an agenda, a schedule itinerary, and a speaker gallery, browsable without login. · sessioncanvas.dev, 11 Oct 2026
- Publishing
- It provides embeddable schedule and speaker widgets, a public JSON schedule feed, and whole-event iCal export. · sessioncanvas.dev, 11 Oct 2026
- Purpose
- Session Canvas is open-source speaker and session management for conferences, covering calls for papers, reviews, agendas, speaker portals, and communications. · sessioncanvas.dev, 11 Oct 2026
- Review
- The review pipeline includes track-based reviewer routing and optional blind review. · sessioncanvas.dev, 11 Oct 2026
- Speaker portal
- Speakers use passwordless magic links to check status, edit profiles, and complete assigned tasks. · sessioncanvas.dev, 11 Oct 2026
Where Session Canvas stands on Freedom251
- Event Scheduling Software#16 of 34