Category Verdict · Help Desk · Free and Open Source

The best free and open source help desk software

You do not always need a paid seat to run good support. We ranked six free and open source help desks on what they cost to run, how much you self host, and where the hidden fees hide, weighting real limits over feature lists.

Reviewed by M. HALLORAN·Updated JUNE 2026·How we vet
Tools compared 6
Criteria weighted 5
Last reviewed June 2026
Paid placements 0
How we ranked the field

Every help desk is scored against the same five weighted criteria, then judged on real plan limits and published pricing rather than a sales demo. See the full rubric →

Ease of use 25%
Features and depth 25%
Value for money 20%
Integrations 15%
Support and onboarding 15%
01
RANK
★ Editor’s Choice

FreeScout

Best free shared inbox

The closest thing to a free Help Scout. A lightweight shared inbox you run yourself, with a Gmail like view your team already understands. The core software is free; add paid modules only when you need SLAs or surveys.

  • Free to self host
  • Email first inbox
  • Active modules
Verdict pending Free to self host · modules from $2
89
OUT OF 100
02
RANK

Zammad

Best for process control

A polished open source desk with strong automation, audit trails and over 40 languages. Run it free on your own server, or take the cloud plan from 7 euro an agent a month when you would rather not manage hosting.

Verdict pending Free self hosted · cloud from €7/agent/mo
88
OUT OF 100
03
RANK

Chatwoot

Best for chat first teams

Built for teams whose customers mostly message rather than file tickets. Live chat, a shared inbox and social channels in one open source app, with a free cloud Hacker tier and Captain AI on the paid plans.

Verdict pending Free self hosted · cloud from $19/agent/mo
86
OUT OF 100
04
RANK

Zoho Desk

Best free cloud plan

Not open source, but the most generous free cloud tier from a major vendor: three agents, email ticketing, a knowledge base and mobile apps at no cost. Move up to Express at $7 an agent when you outgrow it.

Read the Zoho Desk verdict → Free up to 3 agents · paid from $7
84
OUT OF 100
05
RANK

osTicket

Best classic ticketing

The veteran open source ticketing system. The interface looks dated, but custom fields, SLAs, auto responders and a customer portal all work, free to self host. A managed cloud option starts at $12 an agent if you prefer.

Verdict pending Free self hosted · cloud from $12/agent/mo
81
OUT OF 100
06
RANK

UVdesk

Best open source for stores

A free Symfony based desk aimed at online stores, with connectors for Shopify, WooCommerce, Magento and more. A good fit when support is tied to orders and you want to keep everything on your own infrastructure.

Verdict pending Free open source · paid cloud plans
78
OUT OF 100

Pricing verified as of June 2026. Vendors change plans often · check the vendor for current pricing.

At a glance

✓ full  ·  ∼ partial  ·  — none
CapabilityFreeScoutZammadChatwootZoho DeskosTicketUVdesk
Open source license
Free to self host
No cost cloud tier
Built in live chat
Native AI
Open REST API

Feature support verified as of June 2026 · check the vendor for current details.