Calendly
Calendly is a tool to schedule meetings and appointments.
Find Open Source Alternatives to literally everything.
open-source-alternatives.com provides a comprehensive overview of Open Source alternatives to popular SaaS products like Slack, Mailchimp, Dropbox, Calendly and more.
One place for all your open source infrastructure needs.
Alternatives to popular SaaS products
View all Alternatives »This is a list of open-source alternatives to popular SaaS products. It is curated to provide high quality alternatives only.
Latest Open Source Alternatives
View all Alternatives »This is a list of recently added open-source alternatives.
FAQs
Frequently Asked Questions
Not sure if these open source alternatives are the right fit for you? Explore recently asked questions about open source software and alternatives.
Why Open Source?
Open Source Software is the backbone of almost every software product out there. Running open source software makes sure you are not locked in into the pricing and ecosystem of some shady SaaS provider.
Should I host it myself?
All open source alternatives listed on our site are designed to be self-hosted. Some of them offer hosted services to support the open source development. Even if you go with the hosted product, you can always switch to self-hosted version.
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Open Source Products
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Proprietary Products