Best Open-Source Zendesk Alternatives (2026)
17 self-hostable, open-source projects that replace Zendesk — without per-agent pricing that adds up. Each is scored for how hard it is to self-host, with one-click deploy options where they exist.
Zendesk's per-agent pricing scales linearly with headcount, so a growing support team pays more every quarter regardless of ticket volume, and feature gates push you up into higher tiers for things like SLAs and routing. Teams also leave to keep customer conversation data on their own infrastructure rather than in a vendor's cloud.
Our picks at a glance
Difficulty 3/5 and the widest deploy story including One-Click and Kubernetes, the lowest-friction option in this list.
Omnichannel live chat plus support desk covers the broadest Zendesk feature surface, and at 22000 stars it has the deepest integration ecosystem here.
22000 stars leads the helpdesk field by a wide margin, well ahead of UVdesk at 16000.
Offers an official managed cloud, so you can start hosted and self-host later without changing tools; UVdesk, Zammad, and osTicket also offer managed but with smaller ecosystems.
Compare all 17 alternatives
Tap a column header to sort| Project | Deploy | Managed | License | ||||
|---|---|---|---|---|---|---|---|
 Chatwoot Ruby | 35k ★ | 3/5 Moderate | One-Click Docker +3 | MIT | 2 days ago | Repo | |
 UVdesk PHP | 19k ★ | 4/5 Involved | Docker Docker Compose +1 | OSL-3.0 | 10 months ago | Repo | |
 GLPI PHP | 6.2k ★ | 3/5 Moderate | Docker Docker Compose +1 | GPL-3.0 | 2 days ago | Repo | |
 Zammad Ruby | 5.8k ★ | 4/5 Involved | Docker Compose Kubernetes +1 | AGPL-3.0 | 2 days ago | Repo | |
 FreeScout PHP | 4.4k ★ | 4/5 Involved | Docker Docker Compose +1 | AGPL-3.0 | 3 days ago | Repo | |
 osTicket PHP | 3.8k ★ | 4/5 Involved | Docker Docker Compose +1 | GPL-2.0 | 1 month ago | Repo | |
 Frappe Helpdesk Docker | 3.3k ★ | 3/5 Moderate | Docker Docker Compose +1 | AGPL-3.0 | 3 days ago | Repo | |
 Libredesk Docker | 2.7k ★ | 2/5 Easy | Docker Docker Compose +1 | AGPL-3.0 | 3 days ago | Repo | |
 Bugsink Python | 2k ★ | 2/5 Easy | Docker Manual | ⊘ Proprietary | 3 days ago | Repo | |
 MantisBT PHP | 1.8k ★ | 4/5 Involved | Docker Manual | GPL-2.0 | 6 days ago | Repo | |
 django-helpdesk Python | 1.7k ★ | 3/5 Moderate | Manual | BSD-3-Clause | 4 days ago | Repo | |
 Trudesk JavaScript | 1.5k ★ | 2/5 Easy | Docker Docker Compose +1 | Apache-2.0 | 2 months ago | Repo | |
| 1.2k ★ | 3/5 Moderate | Docker Manual | LGPL-3.0 | 2 months ago | Repo | ||
| 1.1k ★ | 4/5 Involved | Docker Manual | GPL-2.0 | 6 days ago | Repo | ||
 HESK PHP | 340 ★ | 1/5 Effortless | Manual | Other | 2 months ago | Repo | |
 OTOBO Perl | 331 ★ | 4/5 Involved | Docker Docker Compose +1 | GPL-3.0 | 2 days ago | Repo | |
 Tiledesk JavaScript | 313 ★ | 3/5 Moderate | Docker Compose Kubernetes +1 | MIT | 23 days ago | Repo |
What to look for: Decide first whether you need full omnichannel live chat (Chatwoot, Zammad) or just a shared-inbox/email ticketing model (FreeScout, osTicket), since that splits the field cleanly. Then weigh the runtime your team can operate — Ruby (Chatwoot, Zammad) and PHP (UVdesk, FreeScout, osTicket) have very different ops profiles — and check the license, as AGPL (Zammad, FreeScout, Peppermint) carries network-copyleft obligations if you modify and host it.
The alternatives, reviewed
- #1
ChatwootSelf-host: ModerateOpen-source omnichannel live-chat and support desk, an Intercom/Zendesk alternative
35k Ruby MIT 2 days agoHow it compares to Zendesk
- Newer/advanced features (AI agents, advanced reporting) are gated behind paid Enterprise/cloud tiers
- Reporting and analytics are less deep than Zendesk Explore
- No native ITSM/ticketing workflow engine as mature as Zendesk's
- Telephony/voice support is weaker than the proprietary incumbents
- #2
UVdeskSelf-host: InvolvedOpen-source Symfony-based helpdesk ticketing system with e-commerce integrations
19k PHP OSL-3.0 10 months agoHow it compares to Zendesk
- No native live chat in the core community edition (offered separately)
- Smaller community and slower release cadence than top alternatives
- Documentation can be sparse for advanced configuration
- Reporting and AI capabilities lag the proprietary incumbents
- #3
GLPISelf-host: ModerateFull-featured open-source IT asset management and service desk with ITIL support
6.2k PHP GPL-3.0 2 days agoHow it compares to Zendesk
- UI is complex and can overwhelm users who only need basic ticketing
- Asset management and ITSM workflows require significant initial configuration
- Plugin quality varies widely; some community plugins are unmaintained
- #4
ZammadSelf-host: InvolvedWeb-based open-source helpdesk and customer support ticketing system
5.8k Ruby AGPL-3.0 2 days agoHow it compares to Zendesk
- Resource-heavy: needs Elasticsearch plus a database, making setup and ops more demanding
- UI feels dated compared to Zendesk/Intercom
- No native modern live-chat widget on par with Intercom
- Smaller marketplace/integration ecosystem than the incumbents
- #5
FreeScoutSelf-host: InvolvedFree self-hosted shared inbox and help desk, a Help Scout/Zendesk alternative
4.4k PHP AGPL-3.0 3 days agoHow it compares to Zendesk
- Many key capabilities (live chat, knowledge base, automations) require paid first-party modules
- Core is email/shared-inbox focused, not truly omnichannel out of the box
- Reporting/analytics are basic compared to Zendesk
- No official managed cloud hosting from the project
- #6
osTicketSelf-host: InvolvedWidely-deployed open-source support ticketing system
3.8k PHP GPL-2.0 1 month agoHow it compares to Zendesk
- Dated UI/UX compared to modern incumbents
- No built-in live chat or modern messaging channels
- Limited automation and no native AI features
- Reporting is basic relative to Zendesk Explore
- #7
Frappe HelpdeskSelf-host: ModerateOpen-source customer support desk with automation and clean UI
3.3k Docker AGPL-3.0 3 days agoHow it compares to Zendesk
- No native live chat widget; real-time messaging requires Frappe's separate chat module
- AI-assisted response suggestions and GPT-powered ticket summarization are absent
- Reporting and analytics dashboards are limited compared to Zendesk Explore
- Mobile apps for agents are not officially provided
- #8
LibredeskSelf-host: EasyOmnichannel support desk — live chat, email, and more in one binary
2.7k Docker AGPL-3.0 3 days agoHow it compares to Zendesk
- No built-in knowledge base or help-centre article editor
- AI copilot features (suggested replies, sentiment analysis) are not yet present
- Phone/voice channel support is absent
- Advanced SLA policies and escalation rules are limited
- #9
BugsinkSelf-host: EasySelf-hosted real-time error tracking with detailed event context
2k Python ⊘ Proprietary 3 days agoHow it compares to Zendesk
- No ticket or helpdesk workflow; purely an error-tracking tool, not a support desk
- Performance monitoring (traces, profiling) is not supported unlike Sentry
- No integrations marketplace (Slack, PagerDuty, Jira) out of the box
- Proprietary licence restricts commercial redistribution
- #10
MantisBTSelf-host: InvolvedVeteran PHP bug tracker tailored for software development teams
1.8k PHP GPL-2.0 6 days agoHow it compares to Zendesk
- UI is dated and not optimised for mobile agents
- No live chat or real-time messaging channel support
- Reporting and analytics are basic compared to modern SaaS helpdesks
- No built-in AI features for reply suggestions or ticket classification
- #11
django-helpdeskSelf-host: ModeratePluggable Django ticketing app for adding support desk functionality to existing projects
1.7k Python BSD-3-Clause 4 days agoHow it compares to Zendesk
- Requires integration into an existing Django project; not a turnkey standalone app
- No built-in live chat or real-time features
- UI styling is minimal and requires additional CSS work to match modern designs
- #12
TrudeskSelf-host: EasyOpen-source help desk and ticketing system with a clean UI and real-time updates
1.5k JavaScript Apache-2.0 2 months agoHow it compares to Zendesk
- No live chat widget for customer-facing sites; email-in only
- Lacks SLA management and automated escalation rules
- Limited integrations compared to commercial help desk platforms
- #13
Faveo HelpdeskSelf-host: ModerateLaravel-based self-hosted ticketing system with email integration and SLA management
1.2k PHP LGPL-3.0 2 months agoHow it compares to Zendesk
- Live chat and advanced reporting only in paid editions
- UI feels dated compared to modern SaaS alternatives
- Community edition support is forum-only with slow response times
- #14
Request Tracker (RT)Self-host: InvolvedBattle-tested enterprise-grade ticketing system used by universities and government agencies
1.1k Perl GPL-2.0 6 days agoHow it compares to Zendesk
- Perl stack and configuration via flat files is unfamiliar to modern web developers
- UI is functional but dated; requires theming effort to modernize
- Setup and initial customization have a significant learning curve
- #15
HESKSelf-host: EffortlessSimple PHP help desk with built-in knowledge base for small teams and solo operators
340 PHP Other 2 months agoHow it compares to Zendesk
- No multi-agent collaboration features or internal notes visible across teams
- No REST API; integrations must be built against the database directly
- License is source-available for free use but prohibits redistribution
- #16
OTOBOSelf-host: InvolvedModern open-source ITSM help desk and ticket system forked from OTRS Community Edition
331 Perl GPL-3.0 2 days agoHow it compares to Zendesk
- Perl stack is unfamiliar to most modern developers, complicating customization
- Initial configuration and ITSM process setup has a steep learning curve
- UI is functional but less modern than newer Node.js or React-based alternatives
- #17
TiledeskSelf-host: ModerateOpen-source live chat and chatbot platform for customer support with omnichannel inbox
313 JavaScript MIT 23 days agoHow it compares to Zendesk
- WhatsApp and other channel integrations require additional configuration and third-party API keys
- Advanced AI features need external LLM API keys not included in self-hosted setup
- Documentation for Kubernetes deployment is incomplete
The verdict
Chatwoot is the default pick: it matches Zendesk's omnichannel scope, is the easiest to stand up, leads on momentum, and offers managed hosting. Choose Zammad if you specifically want a more formal ticketing workflow, or FreeScout if you only need a self-hosted shared inbox.
Zendesk alternatives — frequently asked questions
Is there a free open-source Zendesk alternative?
Yes, several. Chatwoot (MIT), Zammad and FreeScout and Peppermint (AGPL-3.0), osTicket (GPL-2.0), and UVdesk (OSL-3.0) are all free and self-hostable. Chatwoot's MIT license is the most permissive if you plan to modify and redistribute.
Which Zendesk alternative is easiest to self-host?
Chatwoot and Peppermint are rated 3/5 difficulty, the lowest here. Chatwoot additionally supports One-Click and Kubernetes deploys, so it has the smoothest path from zero to running.
Which one is closest to Zendesk feature-for-feature?
Chatwoot, because it covers omnichannel live chat plus a support desk in one product. If your need is narrower email/ticket workflows, Zammad or osTicket map more directly to classic ticketing.
Can I get managed hosting instead of self-hosting?
Yes. Chatwoot, UVdesk, Zammad, and osTicket all offer official managed/cloud options. FreeScout and Peppermint are self-host only.
What runtime do these need to run?
Chatwoot and Zammad are Ruby; UVdesk, FreeScout, and osTicket are PHP; Peppermint is TypeScript/Node. Pick the stack your team can actually operate and patch.
Is there a lightweight option if I don't need full live chat?
FreeScout is a self-hosted shared inbox modeled on Help Scout, and osTicket is a long-established ticketing system. Both skip the live-chat suite and focus on email-driven support.