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Home/Categories/Communication & Collaboration/Valour
icon of Valour

Valour

Open source alternative to Discord, Slack and Stream

It is an open-source, community-driven platform offering flexible chat, economy, and item systems built on Blazor & WebAssembly.

382 starsC#AGPL-3.0Active this month
Visit websiteGitHub repo
image of Valour
Contents
  1. 01Who Valour is for
  2. 02The problem it solves
  3. 03How it solves it
  4. 04Strengths and trade-offs
  5. 05Tech stack
  6. 06FAQ
  7. 07Similar open-source tools
TL;DR

Valour is an open-source community chat platform with multi-chat windows, official API access, and community-oriented features. It replaces closed chat platforms for groups that want programmable community infrastructure and source visibility. AGPL-3.0 licensed.AGPL-3.0 · C# · 382 stars · Active this month

who it's for

Who Valour is for#

Communities needing programmable chat

Valour fits groups that want bots, APIs, and custom community systems under an open-source platform.

Skip if:

You just need a hosted chat room with no infrastructure ownership.

Moderation teams watching several channels

The multi-chat window model helps teams monitor activity across multiple spaces.

Skip if:

Your team already relies on Discord-specific community discovery and integrations.

the problem

The problem it solves#

Online communities often outgrow basic chat when they need richer moderation, custom bots, economies, multiple conversation surfaces, and provider flexibility. Closed platforms can make those workflows dependent on vendor rules and opaque data policies.

Community operators need chat infrastructure they can inspect and adapt. That matters when bots, APIs, moderation, and uptime are central to how the community works.

how Valour solves it

How it solves it#

Multi-chat client

Valour supports multiple chat windows across communities, helping moderators and power users watch several conversations at once.

Official API foundation

The README highlights an official API for bots and applications, giving developers a programmable community surface.

Node-based architecture

Valour describes nodes that can run independently, reducing dependence on one central service node.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Designed for communitiesValour is strongest for groups that want chat plus community-specific systems rather than a plain messaging app.
  • Developer-friendly extensibilityThe API and bot framing make it attractive for communities that build custom workflows around chat.

Trade-offs

  • -Operationally heavier than hosted chatSelf-hosting or contributing to Valour requires understanding its .NET, PostgreSQL, Redis, and real-time service setup.
tech stack · detected from GitHub

What it's built on#

Languages
C#JavaScriptTypeScript
Runtimes
.NET
frequently asked

FAQ#

What is Valour?

Valour is an open-source chat platform designed for communities, bots, and programmable client experiences.

Does Valour have an API?

Yes. The README describes an official API for bots and applications.

What license does Valour use?

GitHub metadata reports AGPL-3.0 licensing for Valour.

also worth a look

Similar open-source tools#

Revolt

Revolt

Self-hosted open source Discord alternative with servers

2.3K
Twake Chat

Twake Chat

Matrix team chat with a companion identity server

157DartAGPL-3.0
Rocket.Chat

Rocket.Chat

Self-hosted team chat with voice, video, and omnichannel support

45.3KTypeScriptMIT
Prose

Prose

Decentralized open source workplace with chat and docs

36RustMPL-2.0
Adapt

Adapt

Lightweight self-hosted messaging platform for teams

1AGPL-3.0
SpacebarChat

SpacebarChat

Free open source Discord reimplementation with full API parity

2.1KTypeScriptAGPL-3.0

Repository

Stars
382
Forks
38
License
AGPL-3.0
Latest
v0.5.31
Last commit
23 days ago
Last verified
May 13, 2026
Repo
Valour-Software/Valour ↗

Additional details

Language
C#
Open issues
150
Contributors
28
First release
2020

Categories

Communication & CollaborationWeb DevelopmentBackend Development

Tags

ChatDeveloper FrameworkSocial MediaAPI InfrastructureDeveloper ToolsSelf Hosted