Best Open Source Discord Alternatives in 2026 (Self-Hosted)

Discord is convenient, but 2026 has been a wake-up call: identity-verification demands, feature creep, and the slow enshittification of a platform millions rely on. If you'd rather own your community's data — its channels, messages, and voice — the open source world has genuinely good answers.

This guide ranks the best open source Discord alternatives you can self-host: real-time chat, channels, voice and video, and community features, all running on your own server. Star counts are pulled live from our directory so you can see which projects have the momentum and community behind them.

TL;DR — the short answer

• Most Discord-like experience → Revolt — built to feel like Discord, fully open source.
• Most powerful & decentralized → Element / Matrix — federated, encrypted, huge ecosystem.
• Best for teams (Slack-style) → Mattermost — secure, self-hosted team chat.
• Most flexible chat platform → Rocket.Chat — chat, channels, integrations, omnichannel.
• Best voice/video → Jitsi Meet — drop-in voice and video rooms.

Key takeaways

Why leave Discord?

• Privacy & data ownership. Self-hosting means your community's messages live on your server, not a company's — no scanning, no ID demands, no data mining.
• No feature paywalls. Everything is open and free; nothing gets locked behind Nitro-style tiers.
• Control & customization. Theme it, extend it, moderate it your way. Set your own rules and retention.
• Longevity. Open source communities can't be shut down or sold out from under you.

The trade-off: you host it. That means a server, updates, and backups. But for many communities, owning the platform is worth it — and several options below are one Docker command to start.

How we evaluated

• Adoption — GitHub stars, pulled live from our directory (external projects cite their GitHub page).
• Maintenance — recency of last commit; everything here was updated in 2026.
• Discord-fit — does it actually offer the things Discord users want: channels, real-time chat, voice, communities?
• Best-for — the use case each one nails.

Quick comparison

_{*Revolt's star count is from its public GitHub page; it isn't yet in our directory.}

The best open source Discord alternatives, ranked

1. Revolt — the most Discord-like option

Best for: communities that want Discord's exact feel, self-hosted and open source. Skip if: you need a mature, enterprise-hardened platform today (it's younger than the others).

Revolt is built from the ground up to feel like Discord — servers, channels, roles, voice, and a familiar UI — but fully open source and self-hostable. For groups migrating off Discord who want the least friction, it's the closest match in look and feel.

• Key features: servers & channels · roles & permissions · voice channels · Discord-like UI · self-hostable
• Pros: the most familiar experience for Discord refugees · actively developed · genuinely open
• Cons: younger and smaller community than Matrix/Rocket.Chat — fewer battle-tested deployments
• Stars: ~6K (per GitHub) · github.com/revoltchat
• _{Not yet in our directory — facts sourced from the project's GitHub.}

2. Element / Matrix — decentralized and encrypted

Best for: future-proof, federated communities that never want to be locked in again. Skip if: you want the simplest possible one-server setup.

Element is the flagship client for Matrix, an open, decentralized and end-to-end encrypted communication protocol. Run your own homeserver and your community federates with the wider Matrix network — no single company controls it. It's the most philosophically "can't be enshittified" option here, with voice, video, spaces (Discord-like server grouping) and bridges to other chat networks.

• Key features: decentralized/federated · end-to-end encryption · spaces & rooms · voice/video · bridges to other platforms
• Pros: truly decentralized · strong encryption · huge ecosystem · bridges to Discord/Slack/IRC
• Cons: running a homeserver (Synapse) has a learning curve; more moving parts
• Stars: 13K (Element web client) · Language: TypeScript · Last updated: 2026-04
• 🔗 Details & alternatives →

3. Rocket.Chat — the flexible chat platform

Best for: communities and teams that want a highly customizable, integrations-rich chat. Skip if: you want something lightweight and minimal.

Rocket.Chat is a mature, feature-packed open source communications platform: channels, DMs, voice/video, threads, and a huge library of integrations and bots. It scales from a hobby community to mission-critical enterprise deployments, and it's fully self-hostable.

• Key features: channels & threads · voice/video · omnichannel · integrations & bots · federation · enterprise controls
• Pros: extremely capable and extensible · large community · self-hosted or cloud
• Cons: heavier to run and configure than minimalist options
• Stars: 45K · Language: TypeScript · Last updated: 2026-05
• 🔗 Details & alternatives →

4. Mattermost — secure team collaboration

Best for: teams and organizations wanting a Slack-style, security-focused platform. Skip if: you want a casual gaming-community vibe (Revolt fits better).

Mattermost is an open source, self-hosted collaboration platform built with security and developer workflows in mind. Channels, threads, calls, playbooks and deep integrations make it a favorite for engineering teams and privacy-conscious organizations.

• Key features: channels & threads · voice calls · playbooks · deep dev-tool integrations · self-hosted/on-prem
• Pros: strong security & compliance story · great for technical teams · actively developed
• Cons: oriented toward work/teams more than casual social communities
• Stars: 36K · Language: TypeScript · Last updated: 2026-04
• 🔗 Details & alternatives →

5. Jitsi Meet — voice and video rooms

Best for: adding high-quality, no-account voice/video to any community. Skip if: you need persistent text channels (pair it with one of the chat platforms).

Jitsi Meet is a secure, scalable, fully open source video-conferencing tool. Spin up a voice/video room instantly with no account required, self-hosted on your own server. It's the go-to for the "voice channel" side of a Discord replacement.

• Key features: instant voice/video rooms · no account needed · screen sharing · scalable · self-hostable
• Pros: excellent audio/video quality · trivially easy to join · privacy-friendly
• Cons: conferencing-focused — not a persistent chat/community platform on its own
• Stars: 29K · Language: TypeScript · Last updated: 2026-04
• 🔗 Details & alternatives →

6. Zulip — threaded team chat

Best for: communities that value organized, threaded conversations over a firehose. Skip if: you prefer Discord's real-time flowing channels.

Zulip reinvents chat around topics within streams, so conversations stay organized and catch-up-able even in busy communities. It's beloved by open source projects and research groups for keeping large-group discussion from becoming chaos.

• Key features: topic-based threading · streams (channels) · integrations · search · self-hostable
• Pros: uniquely good at organized async discussion · scales to large communities · open source
• Cons: the threading model is a mindset shift from Discord's flow
• Stars: 25K · Language: Python · Last updated: 2026-04
• 🔗 Details & alternatives →

7. SimpleX Chat — maximum privacy

Best for: privacy-maximalist groups who want no identifiers at all. Skip if: you want big-server community features like roles and rich channels.

SimpleX Chat is a messaging network with no user identifiers whatsoever — not even random IDs — making it arguably the most private option here. Great for small, security-focused groups that prioritize privacy over Discord-style community management.

• Key features: no user identifiers · end-to-end encryption · decentralized · voice/video · self-hostable relays
• Pros: unmatched metadata privacy · genuinely decentralized · actively developed (last commit 2026-07)
• Cons: privacy-first design trades away large-community management features
• Stars: 18K · Language: Haskell · Last updated: 2026-07
• 🔗 Details & alternatives →

8. Mumble — low-latency voice

Best for: gamers who want rock-solid, low-latency voice chat. Skip if: you need text channels and community features (Mumble is voice-first).

Mumble is a battle-tested, low-latency voice chat application built for gamers. If your community's priority is crystal-clear, lag-free voice on your own server, Mumble has done exactly that for over a decade.

• Key features: low-latency voice · positional audio · self-hosted server · encryption · lightweight
• Pros: superb voice quality and latency · tiny resource footprint · rock-solid reliability
• Cons: voice-focused — minimal text/community features
• Stars: 8K · Language: C++ · Last updated: 2026-04
• 🔗 Details & alternatives →

9. Discourse — for forum-style communities

Best for: communities better served by structured, searchable discussion than real-time chat. Skip if: you specifically want real-time voice/channels.

Discourse is the leading open source forum/community platform. If your Discord server is really about long-form discussion, knowledge and searchable threads, a Discourse forum may serve your community far better — and it's the gold standard for the format.

• Key features: threaded discussion · trust levels & moderation · search · plugins · self-hostable
• Pros: best-in-class community forum · excellent moderation tools · huge plugin ecosystem
• Cons: forum model, not real-time chat or voice
• Stars: 47K · Language: Ruby · Last updated: 2026-04
• 🔗 Details & alternatives →

10. Flarum — lightweight forums

Best for: a fast, modern, lightweight forum for a smaller community. Skip if: you need real-time chat or heavy enterprise features.

Flarum is a simple, fast, beautifully designed forum platform. It's the lightweight alternative to Discourse — quick to set up and pleasant to use for building a focused community around discussion.

• Key features: modern forum UI · extensions · fast & lightweight · self-hostable
• Pros: clean and fast · easy to run · good for smaller communities
• Cons: forum-only; fewer features than Discourse; no chat/voice
• Stars: 16K · Language: PHP · Last updated: 2026-06
• 🔗 Details & alternatives →

How to choose

Match the tool to what your community actually does:

• You want Discord, but yours → Revolt for the closest feel, or Element/Matrix if decentralization and encryption matter most.
• It's really a team/work space → Mattermost (security-focused) or Rocket.Chat (most flexible).
• Voice is the point → Mumble for gaming-grade voice, Jitsi for video meetings — layered on top of a text platform.
• It's long-form discussion, not chat → Discourse or Flarum as a forum.
• Privacy above all → SimpleX Chat.

Many communities run a combo — e.g. Matrix/Element for chat plus Jitsi for voice rooms.

Frequently asked questions

What is the best open source Discord alternative? For the most Discord-like experience, Revolt. For a future-proof, decentralized and encrypted platform, Element/Matrix. For teams, Mattermost or Rocket.Chat. The "best" depends on whether you prioritize familiarity, decentralization, or team features.

Is there a self-hosted Discord alternative with voice channels? Yes. Revolt and Element/Matrix include voice, Mumble offers gaming-grade low-latency voice, and Jitsi Meet provides excellent video/voice rooms you can pair with any text platform.

Are these Discord alternatives really free? Yes — every option here is free and open source. Your only cost is the server you host it on. Some (like Rocket.Chat and Mattermost) offer paid hosted/enterprise editions, but the core is free to self-host.

Which is the most private Discord alternative? SimpleX Chat (no user identifiers at all) and Element/Matrix (end-to-end encrypted, decentralized) are the most privacy-focused. Because you self-host, your data never touches a third party's servers.

Can I migrate my Discord community easily? There's no one-click import, but Revolt minimizes friction with its Discord-like structure, and Matrix offers bridges that can connect to Discord during a transition. Plan a gradual move: stand up the new server, bridge or cross-post, then shift over.

The bottom line

You don't have to accept Discord's direction. For the closest feel, start with Revolt; for a decentralized, future-proof community, Element/Matrix; for teams, Mattermost or Rocket.Chat; for voice, Mumble or Jitsi. Every one is free, open source, and yours to control — with your community's data staying exactly where you put it.

Browse open source alternatives to popular software, or explore the full directory of open source projects.