Self-hosted alternatives to Zendesk
Agent seats are billed annually, so seasonal support teams pay year-round.
Below are 10 open-source projects that cover the same ground, each scored 0–100 on how actively it is actually maintained — commit volume, release cadence and recent trend. 8 of the 10 are currently rated healthy or better. Ordering reflects that score, not sponsorship.
| Project | Health | Activity (11 mo) | Stars | Licence | Last release |
|---|---|---|---|---|---|
| Chatwoot Customer communication platform (alternative to Intercom and Zendesk). | Thriving · 92 | 37k | ⊘ Proprietary | 18 Sept 2026 | |
| Erxes Marketing, sales, and customer service platform designed to help businesses attract more engaged customers. | Thriving · 86 | 4.1k | AGPL-3.0 | 24 Sept 2026 | |
| Libredesk Modern omnichannel customer support desk. Live chat, email, and more in a single binary. | Thriving · 85 | 3k | AGPL-3.0 | 25 Sept 2026 | |
| Frappe Helpdesk Helpdesk software which helps you streamline your company's support, offers an easy setup, clean user interfac | Thriving · 82 | 3.4k | AGPL-3.0 | 3 Sept 2026 | |
| ITFlow Client IT documentation, ticketing, invoicing and accounting for MSPs (Managed Service Providers). | Healthy · 79 | 1k | GPL-3.0 | 1 Sept 2026 | |
| Bugsink Real-time error tracking for your applications with all the details in one place. Easy setup with clear instru | Healthy · 78 | 2.1k | ⊘ Proprietary | 25 Sept 2026 | |
| FreeScout Email-based customer support application, help desk and shared mailbox (alternative to Zendesk and Help Scout) | Healthy · 77 | 4.6k | AGPL-3.0 | 27 Sept 2026 | |
| Zammad Easy to use but powerful support and ticketing system. | Healthy · 76 | 6k | AGPL-3.0 | — | |
| OTOBO Flexible web-based ticketing system used for customer service, help desk, IT service management. | Steady · 67 | 337 | GPL-3.0 | — | |
| UVDesk UVDesk community is a service oriented, event driven extensible opensource helpdesk system that can be used by | At risk · 29 | 20k | MIT | 19 Sept 2025 |
How these were picked
Every project listed here is open source and can run entirely on hardware you control. We start from the categories that match Zendesk's job — Ticketing, Customer Relationship Management (CRM) — then rank by health score so that a popular-but-abandoned project never appears above a smaller one that is actively shipping. The scoring method is documented in full.
The scores are recomputed from repository data on every rebuild, so this page reflects the state of these projects as of 1 Oct 2026 — not the day it was written.
Chatwoot
Customer communication platform (alternative to Intercom and Zendesk).
Best fit: Teams looking for an open-source or self-hosted alternative to mainstream customer support helpdesks to maintain data control.
Worth knowing: The software is distributed under a proprietary licence rather than a standard open-source licence, which may restrict how you can commercialise or modify it. It also carries a high operational burden typical of a monolithic Ruby application with multiple background workers.
Erxes
Marketing, sales, and customer service platform designed to help businesses attract more engaged customers.
Best fit: Teams looking for an open-source alternative to commercial customer relationship and ticketing suites who want direct control over their operational data.
Worth knowing: The software combines AGPL-3.0 licensing with a Commons-Clause restriction, which may limit commercial usage or resale depending on your intended deployment model.
Libredesk
Modern omnichannel customer support desk. Live chat, email, and more in a single binary.
Best fit: Teams looking to centralise their customer support channels into a single self-hosted ticketing system without relying on proprietary cloud services.
Worth knowing: The AGPL-3.0 licence requires you to make the source code available if you modify the software and offer it as a network service. It also competes in a crowded space alongside mature alternatives with larger ecosystems.
Frappe Helpdesk
Helpdesk software which helps you streamline your company's support, offers an easy setup, clean user interface, and automation tools to resolve customer queries efficiently.
Best fit: It suits teams looking for an open-source alternative to proprietary customer support platforms to manage incoming requests on their own infrastructure.
Worth knowing: The AGPL-3.0 licence places strong copyleft requirements on your deployment, meaning any network-based modifications you make must generally be made available to your users.
ITFlow
Client IT documentation, ticketing, invoicing and accounting for MSPs (Managed Service Providers).
Best fit: Managed Service Providers and independent system administrators who want to host their own client management and ticketing stack without paying per-seat SaaS fees.
Worth knowing: Adopting an open-source MSP platform means you are entirely responsible for data security, backups, and recovering from integration or billing errors. It also carries the usual migration overhead of moving existing client data away from established commercial alternatives.