Best Open Source Alternatives to OnceHub

Compare the best free and open-source alternatives to OnceHub — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

OnceHub

Proprietary SaaS

PricingFreemium

Platformsweb

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OnceHub alternatives compared

Open-source alternatives to OnceHub, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Easy!Appointments	4,290	GPL-3.0	WebDockerLinuxmacOS	Yes	Jul 2026	Visit
RRuleScheduler	3,736	MIT	Web	No	Jun 2024	Visit
BookingSystem	0	MIT	Web	Yes	—	Visit

Top open-source OnceHub alternatives

Easy!Appointments4,290GPL-3.0

An open-source web application that allows your customers to book appointments.

WebDockerLinuxmacOSWindows

vs OnceHub: a free, open-source option you fully control, licensed GPL-3.0.

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RRuleScheduler3,736MIT

A JavaScript helper library to generate and display recurring schedules.

Web

vs OnceHub: a free, open-source option you fully control, licensed MIT.

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BookingSystem0MIT

An open source node-based API and dashboard for booking resources.

Web

vs OnceHub: a free, open-source option you fully control, licensed MIT.

Visit Details