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Greenroom

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Greenroom's own site

What Greenroom is

Greenroom is an open-source, self-hostable workspace for conference organizers managing a program from the call for speakers through event day. Its form builder supports custom fields, conditional logic, tracks, closing dates and submission limits. Review tools include blind review, weighted scorecards, reviewer assignment by track and recusal. Speakers can follow submission status, update bios and headshots, and complete onboarding tasks. Organizers can schedule sessions across rooms and days with drag-and-drop and automatic conflict detection. The workspace also supports confirmation and decision emails, feedback, reminders and .ics calendar invites. A speaker CRM includes an organization-wide database, sourcing pipeline, segments, merge tools and bulk outreach. Greenroom offers a one-way Airtable sync, a REST API, signed webhooks and brandable website widgets. API tokens are limited to one event, and documented endpoints cover sessions, submissions and speaker profiles. The site describes Greenroom as running on Cloudflare, but says it binds to localhost, has no authentication and must never be exposed to a network. It describes the project as open source but does not state a price.

Who it suits

Greenroom suits conference organizers who need a workspace for speaker submissions, reviews, scheduling and event communications. Its speaker portal also serves speakers submitting and tracking talks.

What it does well

  • Supports custom CFP forms and blind review workflows.
  • Schedules sessions across rooms and days with conflict detection.
  • Provides speaker onboarding and submission status tracking.
  • Includes one-way Airtable sync, REST API and signed webhooks.
  • Open source and self-hostable.

What to know first

  • Has no authentication.
  • Binds to localhost and must never be exposed to a network.
  • Airtable sync is one-way.
  • No price is stated.

Limits

The security boundary is strict: Greenroom binds to localhost, has no authentication, and must never be exposed to a network. Its Airtable integration syncs data one way.

Getting started

  1. Visit the Greenroom website
  2. Use its web interface or self-hosting route
  3. Create a call-for-speakers form with the available fields and rules
  4. Set up review workflows and the agenda
  5. Use the speaker portal for submissions and onboarding

Verdict

Greenroom covers conference submissions, reviews, speaker management, scheduling and communications in one workspace. Its localhost-only, unauthenticated security boundary is an important hosting constraint: it must not be exposed to a network.

Questions

Is Greenroom open source?

Yes. It is described as open source and self-hostable; the linked project repository credits Zak El Fassi under its MIT license notice.

What does Greenroom cost?

Its pricing model is listed as free, and the homepage describes it as open source.

Can Greenroom be exposed to a network?

No. The site says it binds to localhost, has no authentication, and must never be exposed to a network.

Does Greenroom integrate with Airtable?

It provides a one-way sync that keeps a browsable copy of event data in the team's Airtable base.

What API access is available?

Greenroom lists a REST API and signed webhooks. API tokens are scoped to one event, and documented endpoints cover sessions, submissions, and speaker profiles.

What can speakers do in Greenroom?

Speakers can track submission status, update bios and headshots, and complete onboarding tasks.

Facts from Greenroom's own pages

Agenda
The agenda builder supports drag-and-drop scheduling across rooms and days with automatic conflict detection. · greenroomplanner.com, 4 Oct 2026
Airtable
An Airtable mirror provides one-way sync to a browsable copy of the team's Airtable base. · greenroomplanner.com, 4 Oct 2026
API and embeds
The product page lists a REST API, signed webhooks, and brandable widgets for embedding on websites. · greenroomplanner.com, 3 Oct 2026
API and webhooks
Greenroom offers a REST API, signed webhooks, and brandable embeds; its API reference documents event-scoped bearer tokens and submission event webhooks. · greenroomplanner.com, 4 Oct 2026
API scope
API tokens are scoped to one event, and documented endpoints provide access to sessions, submissions, and speaker profiles. · greenroomplanner.com, 3 Oct 2026
Audience
Greenroom says organizers get an event workspace and speakers get a portal to submit and track talks. · greenroomplanner.com, 3 Oct 2026
CFP forms
Its call-for-speakers form builder supports custom fields, conditional logic, tracks, close dates, and submission limits. · greenroomplanner.com, 4 Oct 2026
Communications
Speaker communications include confirmation and decision emails, feedback, reminders, and .ics calendar invites. · greenroomplanner.com, 4 Oct 2026
Hosting
The site describes Greenroom as self-hostable and says it runs on Cloudflare. · greenroomplanner.com, 4 Oct 2026
Integration
Greenroom provides a one-way Airtable sync that keeps a browsable copy of event data in the team's Airtable base. · greenroomplanner.com, 3 Oct 2026
Maker
The linked project repository credits Zak El Fassi under its MIT license notice. · github.com, 4 Oct 2026
Pricing
The homepage describes the product as open source and says it is intended to avoid an enterprise SaaS bill; it does not state a price. · greenroomplanner.com, 4 Oct 2026
Purpose
Greenroom is an open-source, self-hostable tool for managing a conference program from call for speakers through agenda publication. · greenroomplanner.com, 4 Oct 2026
Review
Review workflows support reviewer routing, blind review, weighted scorecards, and recusal. · greenroomplanner.com, 4 Oct 2026
Scheduling
The agenda builder supports drag-and-drop scheduling across rooms and days, with automatic conflict detection. · greenroomplanner.com, 3 Oct 2026
Security
The site says Greenroom is localhost-only, binds to 127.0.0.1, has no authentication, and must never be exposed to a network. · github.com, 4 Oct 2026
Self-hosting
The homepage describes Greenroom as open source and self-hostable. · greenroomplanner.com, 3 Oct 2026
Speaker CRM
The speaker CRM includes an organization-wide database with a sourcing pipeline, segments, merge tools, and bulk outreach. · greenroomplanner.com, 4 Oct 2026
Speaker portal
Speakers can track submission status, update bios and headshots, and complete onboarding tasks. · greenroomplanner.com, 4 Oct 2026

Where Greenroom stands on Freedom251

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