Relm

At a glance

• Editor score
  6.9 / 10
• Pricing
  Open source
• Best for
  Open-source teams building custom 3D environments
• Paid from
  Free
• Founded
  2019 · Salt Lake City, Utah, United States
• Facts checked
  20 Sep 2026

• Where it wins

  • Browser-based 3D worlds with customizable avatars and spatial audio
  • Collaborative editing, permissions, documents, and whiteboards
  • Supports hosted use or deployment on an organization's own server

• Where it doesn't

  • Web and self-hosted coverage is narrower than broader platform suites
  • No AI features are included
  • Its spatial environment may be more than simple meetings require

Our verdict on Relm

Relm is an open-source, browser-based 3D spatial platform for meetings, collaboration, communities, and online events. Participants appear as customizable avatars in shared virtual environments, with in-world audio and video conferencing, text chat, permissions, and collaborative world-editing tools. It is aimed at communities, life coaches, guides, remote groups, and open-source teams that want online interaction to feel more spatial than a conventional meeting interface. Relm can run through the vendor’s service or be deployed on an organization’s own server.

Its standout capability is the combination of a multiplayer 3D environment and a collaborative world editor. Teams can create or modify shared spaces while using proximity and group audio modes, which supports different interaction patterns within the same environment. Shared rich-text documents and whiteboards extend the workspace beyond conversation, while read, access, and edit permissions provide control over participation. This makes Relm a fit for organizations that value customization and want to shape the environment around their community or event format.

Relm’s open-source model and self-hosted platform are important advantages for teams that want more control over deployment and world design. At the same time, its scope is concentrated on web-based spatial experiences, with no AI features and platform coverage centered on web and self-hosted use. Teams seeking a customizable 3D meeting environment should consider Relm; organizations looking for a broader meeting ecosystem or a simpler room-based workflow may prefer a more conventional alternative.

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Relm pricing

Relm fact sheet

Alternatives to Relm

• TopiaA flexible virtual meeting space with spatial interaction, event tools, and broad integrations.9.3
• WorkAdventureA flexible virtual office and event space with strong collaboration integrations.9.2
• BAWES UniverseAn open-source virtual world for teams that need persistent, programmable meeting spaces.8.9

See all Relm alternatives →

Featured on iTechGuides

Relm is listed in our Virtual Meeting Room Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update