Best Open-Source Zendesk Alternatives (2026)
6 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 6 alternatives
Tap a column header to sort| Project | Deploy | Managed | License | ||||
|---|---|---|---|---|---|---|---|
 Chatwoot Ruby | 22k ★ | 3/5 Moderate | One-Click Docker +3 | MIT | 5 days ago | Repo | |
 UVdesk PHP | 16k ★ | 4/5 Involved | Docker Docker Compose +1 | OSL-3.0 | 2 months ago | Repo | |
 Zammad Ruby | 5.7k ★ | 4/5 Involved | Docker Compose Kubernetes +1 | AGPL-3.0 | 4 days ago | Repo | |
 FreeScout PHP | 4.3k ★ | 4/5 Involved | Docker Docker Compose +1 | AGPL-3.0 | 10 days ago | Repo | |
 osTicket PHP | 3.8k ★ | 4/5 Involved | Docker Docker Compose +1 | GPL-2.0 | 26 days ago | Repo | |
 Peppermint TypeScript | 3.3k ★ | 3/5 Moderate | Docker Docker Compose +1 | AGPL-3.0 | 18 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
22k Ruby MIT 5 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
16k PHP OSL-3.0 2 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
ZammadSelf-host: InvolvedWeb-based open-source helpdesk and customer support ticketing system
5.7k Ruby AGPL-3.0 4 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
- #4
FreeScoutSelf-host: InvolvedFree self-hosted shared inbox and help desk, a Help Scout/Zendesk alternative
4.3k PHP AGPL-3.0 10 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
- #5
osTicketSelf-host: InvolvedWidely-deployed open-source support ticketing system
3.8k PHP GPL-2.0 26 days 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
- #6
PeppermintSelf-host: ModerateOpen-source ticket management and helpdesk, a Zendesk/Jira alternative
3.3k TypeScript AGPL-3.0 18 days agoHow it compares to Zendesk
- Younger project; feature set is narrower than mature incumbents
- No native live chat or full omnichannel messaging
- Limited automation, SLA, and reporting depth vs Zendesk
- Smaller integration ecosystem and no official managed cloud
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.