Discord vs Mattermost (2026)
By Noahlast updated
Discord
DiscordVoice, video, and text chat built around persistent communities, from gaming servers to hobbyist groups and small teams.
- Pricing
- Free tier · paid from $2.99/mo
- License
- Freemium
- 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
Mattermost
MattermostAn open-core, self-hostable team chat and workflow platform for organizations needing data sovereignty, used by NASA, Samsung, and government agencies.
- Pricing
- Free
- License
- Open core
- Best for
- 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
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
Discord vs Mattermost: feature comparison
| Feature | Discord | Mattermost |
|---|---|---|
| Starting price | Yesfree plan | Yesfree self-hosted Community Edition |
| Free tier | Yesunlimited servers, members, message history | Yesself-hosted core, unlimited users, community support only |
| Platforms | Web, Windows, macOS, Linux, iOS, Android | Web, Windows, macOS, Linux, iOS, Android |
| Hosting model | NoSaaS only | Yesself-hosted or air-gapped deployment |
| License | Proprietary, freemium | Open core — MIT-licensed core, commercial license for enterprise features |
| Paid tier pricing | YesNitro from $2.99/mo | UnknownProfessional/Enterprise/Enterprise Advanced all quote-only |
| Compliance certifications | Unknown | YesFIPS 140-3/STIG-hardened options (Enterprise) |
| SSO / enterprise admin controls | No | Partialfrom Professional/Enterprise tiers, quote-only |
| Voice/video calling | Yespersistent, always-on voice channels | Partial1:1 audio/screenshare on the core; broader on paid tiers |
| Third-party app/bot ecosystem | Yeslarge ecosystem of third-party bots | Partialsmaller app/integration ecosystem than mainstream SaaS chat |
| Open-source community size | Unknownclosed source | Yesnearly 39,000 GitHub stars |
| Notable deployments | Unknown | YesU.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
Pros
- Free tier has unlimited servers, members, and message history with no time-limited voice calls.
- Persistent voice channels let people join and leave communication casually, without scheduling.
- Deep gaming integrations (rich presence, direct game invites, low-latency streaming).
- Highly customizable via roles, permissions, and a large ecosystem of third-party bots.
Cons
- Not designed for professional/business communication; lacks the compliance, SSO, and formal admin auditing of workplace chat tools.
- Server moderation quality varies widely since it depends on volunteer admins and bots rather than built-in enterprise controls.
- Nitro pricing and perks (server boosts, file limits) can be confusing to new users trying to understand what's actually included.
- Anyone with a username can attempt to message or find users by default, raising privacy concerns some reviewers flag.
Mattermost
Pros
- Self-hosted core is free (MIT-licensed) with no user limit, avoiding SaaS vendor lock-in.
- Deployment options (on-premise, private cloud, air-gapped) support compliance needs that pure-SaaS chat tools can't meet.
- Native apps across web, Windows, macOS, Linux, iOS, and Android.
- Open-core model means the underlying chat engine's code is auditable even though advanced features are commercially licensed.
Cons
- No published flat pricing for any paid tier; all require contacting sales and a prepaid annual commitment.
- Self-hosting the free core requires ongoing server maintenance, scaling, and upgrades.
- Advanced features (sovereign AI, high availability, air-gapped support) sit behind the commercial Enterprise license, not the open-source core.
- 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. |
Neither a match?
Both lists carry verified pricing and honest weaknesses for every option.
Popular comparisons
Discord vs Mattermost: 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.