Zammad is a web based open source helpdesk/customer support system.
Tickets from email, chat, phone and social channels, with a knowledge base and a Zendesk importer.
alternatives to
Zendesk
Hosted customer service ticketing across email, chat and phone. A closed product from Zendesk.
Side by side
| Tool | Fit | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|---|
| Zammad | Full replacement | 6k | AGPL-3.0 | Open source | Yes | Ruby | 7.2.1 | 2026-10-06 |
| Chatwoot | Partial | 38k | Other | Open core | Yes | Ruby | v4.18.0 | 2026-10-06 |
| UVdesk | Partial | 20k | OSL-3.0 | Not checked | Yes | CSS | v1.1.8 | 2026-10-05 |
| FreeScout | Partial | 4.6k | AGPL-3.0 | Open source | Yes | PHP | 1.8.245 | 2026-10-06 |
| osTicket | Partial | 4k | GPL-2.0 | Open source | Yes | PHP | v1.18.4 | 2026-06-17 |
| Helpdesk | Partial | 3.4k | AGPL-3.0 | Open source | Yes | Vue | v1.30.1 | 2026-10-06 |
| Libredesk | Partial | 3k | AGPL-3.0 | Open source | Yes | Go | v2.8.0 | 2026-10-06 |
| Trudesk | Partial | 1.5k | Other | Open source | Yes | JavaScript | v1.2.11 | 2026-05-11 |
| Faveo Helpdesk | Partial | 1.3k | OSL-3.0 | Open source | Yes | PHP | v2.0.3 | 2026-10-01 |
| Request Tracker | Partial | 1.2k | GPL-2.0 | Open source | Yes | Perl | rt-6.0.3 | 2026-10-05 |
| Znuny | Partial | 600 | GPL-3.0 | Open source | Yes | Perl | rel-7_3_7 | 2026-10-05 |
| OTOBO | Partial | 336 | GPL-3.0 | Open source | Yes | Perl | rel-11_0_18 | 2026-10-06 |
Every alternative
12 alternatives
Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬
Conversations across channels, lighter on ticketing workflows.
UVdesk Open Source Community Helpdesk is a comprehensive ticketing support system designed for everyone, offering robust features to streamline customer support and collaboration.
Tickets from email and web forms, a support centre portal, workflows and saved replies.
FreeScout — Free self-hosted omnichannel AI-powered helpdesk & shared mailbox
Shared email inbox with tickets; more features come as modules.
The osTicket open source ticketing system official project repository, for versions 1.8 and later
Email and web form tickets with SLAs and a knowledge base, without live chat or phone.
Modern, Streamlined, Free and Open Source Customer Service Software
Tickets with SLAs, saved replies, assignment rules and a customer portal with a knowledge base, built on the Frappe framework.
Open-source, self-hosted customer support desk in a single binary. A lightweight alternative to Intercom, Zendesk, Chatwoot.
A shared inbox for email, live chat and WhatsApp with SLAs, automation rules, macros and a help center, in a single Go binary.
:coffee: :seedling: Trudesk is an open-source help desk/ticketing solution.
Tickets from email and a web portal, with groups, teams and SLAs, without chat or phone.
- Language
- JavaScript
- Licence
- Other
- Stars
- 1.5k
- Latest
- v1.2.11
- Last push
- 2026-05-11
Faveo Open source ticketing system build on Laravel framework
Email tickets with departments, SLAs and a knowledge base.
Request Tracker, an enterprise-grade issue tracking system
Email-driven tickets with queues, custom fields, scrips and a self-service portal.
Znuny is a free, open-source, and versatile web-based ticketing system for Customer Service, Help Desk, IT Service Management, and more. It is built for transparency and long-term sustainability and is highly tailorable to your organization's needs.
Tickets from email and a customer portal, with queues and SLAs.
OTOBO is one of the most flexible web-based ticketing systems used for Customer Service, Help Desk, IT Service Management. https://otobo.io/
Tickets from email, phone and a customer portal, with queues and SLAs.
- Language
- Perl
- Licence
- GPL-3.0
- Stars
- 336
- Latest
- rel-11_0_18
- Last push
- 2026-10-06
Head to head
- Chatwoot vs Faveo Helpdesk
- Chatwoot vs Helpdesk
- Chatwoot vs FreeScout
- Chatwoot vs Libredesk
- Chatwoot vs osTicket
- Chatwoot vs OTOBO
- Chatwoot vs Request Tracker
- Chatwoot vs Trudesk
- Chatwoot vs UVdesk
- Chatwoot vs Zammad
- Chatwoot vs Znuny
- Faveo Helpdesk vs Helpdesk
- Faveo Helpdesk vs FreeScout
- Faveo Helpdesk vs Libredesk
- Faveo Helpdesk vs osTicket
- Faveo Helpdesk vs OTOBO
- Faveo Helpdesk vs Request Tracker
- Faveo Helpdesk vs Trudesk
- Faveo Helpdesk vs UVdesk
- Faveo Helpdesk vs Zammad
- Faveo Helpdesk vs Znuny
- Helpdesk vs FreeScout
- Helpdesk vs Libredesk
- Helpdesk vs osTicket
- Helpdesk vs OTOBO
- Helpdesk vs Request Tracker
- Helpdesk vs Trudesk
- Helpdesk vs UVdesk
- Helpdesk vs Zammad
- Helpdesk vs Znuny
- FreeScout vs Libredesk
- FreeScout vs osTicket
- FreeScout vs OTOBO
- FreeScout vs Request Tracker
- FreeScout vs Trudesk
- FreeScout vs UVdesk
- FreeScout vs Zammad
- FreeScout vs Znuny
- Libredesk vs osTicket
- Libredesk vs OTOBO
- Libredesk vs Request Tracker
- Libredesk vs Trudesk
- Libredesk vs UVdesk
- Libredesk vs Zammad
- Libredesk vs Znuny
- osTicket vs OTOBO
- osTicket vs Request Tracker
- osTicket vs Trudesk
- osTicket vs UVdesk
- osTicket vs Zammad
- osTicket vs Znuny
- OTOBO vs Request Tracker
- OTOBO vs Trudesk
- OTOBO vs UVdesk
- OTOBO vs Zammad
- OTOBO vs Znuny
- Request Tracker vs Trudesk
- Request Tracker vs UVdesk
- Request Tracker vs Zammad
- Request Tracker vs Znuny
- Trudesk vs UVdesk
- Trudesk vs Zammad
- Trudesk vs Znuny
- UVdesk vs Zammad
- UVdesk vs Znuny
- Zammad vs Znuny
About Zendesk
- Vendor
- Zendesk