1 Best Open-Source Alternatives to TidyCal in 2026
By Noahlast updated pricing verified
Compared: open-source alternatives to TidyCal
| Alternative | Best for | Standout | Biggest weakness | Learning curve | Price |
|---|---|---|---|---|---|
| TidyCalreference | solo service providers like coaches and consultants who want unlimited bookings without committing to a recurring subscription | One-time lifetime pricing ($29 Individual or $79 Agency) as an alternative to the monthly subscription model most scheduling tools, including Calendly, require. | No native mobile app — booking pages and the admin dashboard are web-only — and SMS reminders only cover US/Canada numbers while requiring the $79 Agency lifetime tier. | Low | Free tier · paid from $12/mo |
| Cal.com | individuals and technical teams who want an open-source, self-hostable Calendly alternative with API-level control over booking flows | The scheduling engine is genuinely self-hostable via Docker, with a fully open community fork (cal.diy, MIT-licensed) that strips out enterprise/commercial code entirely, giving teams a real self-hosted path rather than an open-source demo that funnels users to the paid cloud. | Self-hosting requires ongoing infrastructure maintenance and doesn't include Cal.com's managed support, while advanced features like SSO and fine-grained access control are gated behind the pricier Organizations and Enterprise tiers on the hosted product. | Moderate | Free tier · paid from $12/mo |
TidyCal
Cal.com1.Cal.com — best TidyCal alternative for individuals and technical teams who want an open-source, self-hostable Calendly alternative with API-level control over booking flows
Cal.com is the best TidyCal alternative for individuals and technical teams that want a genuinely open-source, self-hostable scheduling engine rather than TidyCal's closed-source, web-only hosted platform. Cal.com's Free plan covers 1 user with unlimited event types and calendars at $0/month, more generous in scope than TidyCal's free tier, and its community codebase is maintained as a fully open MIT-licensed fork (cal.diy) with all enterprise code stripped out, letting technical teams run their own booking infrastructure the way TidyCal's platform never allows. Even on the free tier, Cal.com includes 100+ integrations and two-way CRM sync with Salesforce and HubSpot, well beyond TidyCal's Google/Microsoft/Apple calendar sync and Stripe/PayPal payments. Cal.com holds a 4.8/5 rating from 85 Product Hunt reviews, matching TidyCal's own 4.8/5 Product Hunt score but with more review volume (85 vs 69). TidyCal is still the better choice for solo providers who want a one-time payment instead of any ongoing cost: Cal.com's Teams plan costs $12/user/month billed annually with no lifetime-purchase option, while TidyCal's $29 Individual Lifetime tier is paid once, and self-hosting Cal.com requires ongoing infrastructure maintenance TidyCal's hosted platform doesn't ask of its users.
Compared to TidyCal: genuinely self-hostable via a fully open MIT-licensed fork (cal.diy), free tier includes 100+ integrations and two-way Salesforce/HubSpot sync, more Product Hunt review volume (85 vs 69) at the same 4.8/5 score
Wins:Genuinely self-hostable via Docker, with a fully open MIT-licensed community fork (cal.diy) that strips out enterprise code entirely · Free plan includes 100+ integrations and two-way Salesforce/HubSpot sync, well beyond TidyCal's calendar-sync-and-payments feature set · 85 Product Hunt reviews vs TidyCal's 69, both at a matching 4.8/5 score
Loses:No one-time lifetime pricing option; Teams costs $12/user/month on an ongoing basis, unlike TidyCal's $29 one-time Individual Lifetime tier · Self-hosting requires ongoing infrastructure maintenance, unlike TidyCal's fully hosted web platform · SSO and fine-grained access control are gated behind the pricier Organizations and Enterprise tiers on the hosted product
Pros
- Free tier includes unlimited event types and calendars for a single user, with no artificial feature caps.
- Genuinely self-hostable via Docker, with a fully open MIT-licensed community fork (cal.diy) available.
- 100+ integrations and two-way Salesforce/HubSpot sync are available even on the free plan.
- Built-in Stripe and PayPal payment collection at time of booking without a separate add-on.
Cons
- Self-hosting requires ongoing infrastructure maintenance and forgoes Cal.com's managed support and updates.
- SSO and advanced access control are gated to the pricier Organizations and Enterprise tiers.
- Team-oriented features require per-user billing ($12-28/user/month), which adds up faster than Calendly's flat team pricing at small seat counts.
- Self-hosted deployments can lag behind the hosted cloud product on the latest feature releases.
Pricing: Free tier · paid from $12/mo — $12/user/month Teams (ongoing) vs TidyCal's $29 one-time Individual Lifetime (verified undefined NaN, NaN)