Open Source Alternatives to Guilded

Fluxer

AGPL-3.0

Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.

Mattermost

Unknown

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.

Valour

AGPL-3.0

Open-source communication platform with multi-window chat, economy systems, and privacy-first approach. Built by communities for superior performance.