osTicket is described as 'Lightweight, open-source support solution with built-in customer portal and rich admin dashboard for easy ticket management' and is a popular Help Desk platform in the business & commerce category. There are more than 100 alternatives to osTicket for a variety of platforms, including Web-based, Windows, SaaS, Self-Hosted and Linux apps. The best osTicket alternative is Deskhero. It's not free, so if you're looking for a free alternative, you could try Freshdesk or FreeScout. Other great apps like osTicket are Zendesk, HESK, Supportbench and Help Scout.
A right-sized helpdesk for freelancers and small dev shops, with a branded client portal, billable-hours tracking, and a built-in AI assistant.
United States
Gruvi is customer support software built for teams who need a simple, fast support inbox with built in AI that you can set up without days of configuration.
United Kingdom
Qisutu is a free and open-source ticketing and service desk platform for professional support organizations. It includes customer and agent portals, queues, workflow automation, service and SLA management, reporting, a knowledge base and an integrated CMDB.
One Horizon is an AI-first roadmap that stays connected to GitHub, Linear/Jira, Slack, etc. so it updates itself as work happens.
Netherlands
EU
Self-hosted help desk and ticketing system for IT support teams and anyone who needs to handle requests as tickets. Buy once per major version: no subscription, no per-agent fees. Runs on your own server or VPS, your data stays with you. Free 30-day trial with the full feature set.
GermanyEU
A self-hosted customer help desk and product feedback platform with unlimited employees for a flat license fee. A unified, budget-friendly alternative to Zendesk, UserVoice, and Help Scout.
United Kingdom
Cenvero Orion is an AI support agent you can embed on any website. It answers customer questions instantly using your knowledge base, suppresses hallucinations post-inference, and automatically escalates complex issues to human agents with ticket creation.
Really Simple Support is a lightweight, zero-setup helpdesk built specifically for solo founders and small teams. It gives you a branded support inbox and a hosted contact form — no DNS, no logins for customers, no complexity. Just drop a link on your site, and you’re ready to go.
initdesk is an AI-powered, email-first help desk for solo founders and small teams. It turns support emails into tickets, suggests AI-drafted replies, auto-tags messages, and lets you “teach” an AI Assistant with your FAQs/docs.
France
