# Discord vs Mattermost (2026)

By Noah — last updated & pricing verified September 14, 2026.

> **Verdict:** Choose Discord if you want a free, always-on voice-first hangout space with no self-hosting and no cap on members. Choose Mattermost if you need self-hosted or air-gapped team chat with compliance controls a consumer SaaS tool can't offer. Hosting model and compliance are the deciding factors: Mattermost's self-hostable MIT core and FIPS 140-3/STIG-hardened options serve regulated organizations that Discord's SaaS-only, consumer-oriented product doesn't address.

**Choose Discord if:** You want unlimited free servers, members, and message history with no self-hosting required; You want persistent voice channels anyone can join without scheduling a call; You want deep gaming integrations like rich presence and direct game invites; You're organizing a hobbyist or gaming community rather than a compliance-regulated workplace; You don't need SSO, air-gapped deployment, or formal admin auditing

**Choose Mattermost if:** You need to self-host your chat platform on-premise for data sovereignty or compliance reasons; You require FIPS 140-3/STIG-hardened compliance options or fully air-gapped deployment; You want an MIT-licensed core you or a security team can audit directly; You're a government, defense, or regulated-industry organization — Mattermost lists the U.S. Air Force, NASA, and Samsung as users; You want deployment options ranging from standard cloud hosting to fully air-gapped, classified environments

## At a glance

|  | Discord | Mattermost |
| --- | --- | --- |
| Pricing | Free tier · paid from $2.99/mo | Free |
| License | Freemium | Open core |
| Best for | gaming and hobbyist communities that want an always-on voice hangout with unlimited free members, rather than a scheduled-meeting or formal workplace chat tool | regulated, government, or defense organizations that need self-hosted, air-gapped, or sovereign-cloud team chat with compliance controls a SaaS-only tool like Slack can't provide |
| Ratings | Capterra 4.6/5 (540 reviews) | Product Hunt 5/5 (1 reviews) |

## Feature comparison

| Feature | Discord | Mattermost |
| --- | --- | --- |
| Starting price | Yes (free plan) | Yes (free self-hosted Community Edition) |
| Free tier | Yes (unlimited servers, members, message history) | Yes (self-hosted core, unlimited users, community support only) |
| Platforms | Web, Windows, macOS, Linux, iOS, Android | Web, Windows, macOS, Linux, iOS, Android |
| Hosting model | No (SaaS only) | Yes (self-hosted or air-gapped deployment) |
| License | Proprietary, freemium | Open core — MIT-licensed core, commercial license for enterprise features |
| Paid tier pricing | Yes (Nitro from $2.99/mo) | Unknown (Professional/Enterprise/Enterprise Advanced all quote-only) |
| Compliance certifications | Unknown | Yes (FIPS 140-3/STIG-hardened options (Enterprise)) |
| SSO / enterprise admin controls | No | Partial (from Professional/Enterprise tiers, quote-only) |
| Voice/video calling | Yes (persistent, always-on voice channels) | Partial (1:1 audio/screenshare on the core; broader on paid tiers) |
| Third-party app/bot ecosystem | Yes (large ecosystem of third-party bots) | Partial (smaller app/integration ecosystem than mainstream SaaS chat) |
| Open-source community size | Unknown (closed source) | Yes (nearly 39,000 GitHub stars) |
| Notable deployments | Unknown | Yes (U.S. Air Force, NASA, Samsung) |
| External rating | 4.6/5 (540 Capterra reviews) | 5/5 (1 Product Hunt review — limited sample) |
| Learning curve | Moderate | Moderate |

## Discord vs Mattermost pricing: which costs less?

Discord's paid tier is cheaper and published outright, starting at $2.99/month, while Mattermost's paid tiers require a sales quote with no listed price.

Discord Nitro Basic is $2.99/month for custom emoji and larger uploads, with a $9.99/month tier for HD streaming and server boosts. Mattermost's free self-hosted Community Edition costs nothing but requires infrastructure to run; its Professional, Enterprise, and Enterprise Advanced tiers are all prepaid annual seat-based subscriptions with no published rate, so budgeting requires a sales conversation.

## Which is easier to use, Discord or Mattermost?

Both carry a moderate learning curve in this data, though Discord's consumer-facing, gaming-first interface is more familiar to hobbyist users while Mattermost's layout targets IT-managed teams.

## Which is more secure or compliant, Discord or Mattermost?

Mattermost is built for compliance-heavy deployment, offering FIPS 140-3/STIG-hardened options and air-gapped hosting that Discord's data does not mention.

Mattermost markets attribute-based access controls, data classification banners, and audit trails aimed at government, defense, and critical-infrastructure customers. Discord's biggest weakness in this data is the reverse: it lacks enterprise features like SSO, compliance controls, and granular admin auditing, and its moderation still depends on volunteer admins and third-party bots rather than built-in controls.

## Which is better for gaming communities, Discord or Mattermost?

Discord is purpose-built for gaming communities, with rich presence, direct game invites, and low-latency voice streaming that Mattermost's data does not address.

Discord shows what friends are currently playing for supported games and lets users join directly, alongside a soundboard and screen sharing for watching or playing together. Mattermost is positioned instead around mission-critical and workplace collaboration, with playbooks, Kanban-style task boards, and Microsoft Teams interoperability rather than gaming-specific features.

## Strengths and weaknesses

### Discord

- Pro: Free tier has unlimited servers, members, and message history with no time-limited voice calls.
- Pro: Persistent voice channels let people join and leave communication casually, without scheduling.
- Pro: Deep gaming integrations (rich presence, direct game invites, low-latency streaming).
- Pro: Highly customizable via roles, permissions, and a large ecosystem of third-party bots.
- Con: Not designed for professional/business communication; lacks the compliance, SSO, and formal admin auditing of workplace chat tools.
- Con: Server moderation quality varies widely since it depends on volunteer admins and bots rather than built-in enterprise controls.
- Con: Nitro pricing and perks (server boosts, file limits) can be confusing to new users trying to understand what's actually included.
- Con: Anyone with a username can attempt to message or find users by default, raising privacy concerns some reviewers flag.

### Mattermost

- Pro: Self-hosted core is free (MIT-licensed) with no user limit, avoiding SaaS vendor lock-in.
- Pro: Deployment options (on-premise, private cloud, air-gapped) support compliance needs that pure-SaaS chat tools can't meet.
- Pro: Native apps across web, Windows, macOS, Linux, iOS, and Android.
- Pro: Open-core model means the underlying chat engine's code is auditable even though advanced features are commercially licensed.
- Con: No published flat pricing for any paid tier; all require contacting sales and a prepaid annual commitment.
- Con: Self-hosting the free core requires ongoing server maintenance, scaling, and upgrades.
- Con: Advanced features (sovereign AI, high availability, air-gapped support) sit behind the commercial Enterprise license, not the open-source core.
- Con: Smaller third-party app/integration ecosystem than Slack, which has a much larger app marketplace.

## Which fits your use case?

| Use case | Pick | Why |
| --- | --- | --- |
| Gaming community wanting free, unlimited voice channels | Discord | Discord's free tier has unlimited servers, members, and always-on voice channels, with no self-hosting required. |
| Government or defense organization needing air-gapped chat | Mattermost | Mattermost's Enterprise Advanced tier supports air-gapped deployment with FIPS 140-3/STIG-hardened compliance, and lists the U.S. Air Force among its users. |
| IT team wanting to self-host and audit the source code | Mattermost | Mattermost's core is MIT-licensed and self-hostable; Discord is closed-source and SaaS-only. |
| Small group wanting a free chat tool with zero infrastructure to manage | Discord | Discord requires no self-hosting at all, while even Mattermost's free tier is a self-managed deployment requiring ongoing server maintenance. |
| Regulated industry (healthcare, finance, government) needing compliance controls | Mattermost | Mattermost markets HIPAA-adjacent compliance features, audit trails, and sovereign-cloud deployment that Discord's data does not offer. |
| Casual friend group organizing voice hangouts | Discord | Discord's persistent voice channels and free unlimited membership fit informal, non-business use directly. |

## Migration FAQ

### Should I use Discord or Mattermost?

Use Discord for free, informal, voice-first community chat; use Mattermost if you need self-hosted or compliance-grade team chat for a regulated organization.

### Is Discord cheaper than Mattermost?

Discord's paid tier is cheaper and transparent at $2.99/month, while Mattermost's paid tiers require a sales quote with no published price; both offer a free base tier.

### Can Mattermost replace Discord?

Only partially — Mattermost can replace Discord for structured team chat and compliance needs, but this data shows no equivalent to Discord's gaming integrations or built-in third-party bot ecosystem.

### Is there a self-hosted alternative to Discord?

Yes, Mattermost is a self-hostable alternative to Discord, with a free MIT-licensed core deployable on-premise or air-gapped, unlike Discord's SaaS-only model.

## Neither a match?

- 4 alternatives to Discord: https://findalternative.to/discord
- 6 alternatives to Mattermost: https://findalternative.to/mattermost

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