Tired of email tennis when scheduling meetings? Cal.com is a powerful scheduling platform. It's fully customizable, feature-rich, & privacy-first.
support@cal.com
- Tweets 7,148
- Following 115
- Followers 17,840
- Likes 11,161
Cal.diy now available under MIT — for hobbyists, builders and self-hosters
Use at your own risk. Free forever.
Use cal.com for any hosted production environment.
Open source is dead.
That’s not a statement we ever thought we’d make.
@calcom was built on open source. It shaped our product, our community, and our growth. But the world has changed faster than our principles could keep up.
AI has fundamentally altered the security landscape. What once required time, expertise, and intent can now be automated at scale. Code is no longer just read. It is scanned, mapped, and exploited. Near zero cost.
In that world, transparency becomes exposure. Especially at scale.
After a lot of deliberation, we’ve made the decision to close the core @calcom codebase.
This is not a rejection of what open source gave us. It’s a response to what risks AI is making possible.
We’re still supporting builders, releasing the core code under a new MIT-licensed open source project called cal. diy for hobbyists and tinkerers, but our priority now is simple:
Protecting our customers and community at all costs.
This may not be the most popular call.
But we believe many companies will come to the same conclusion.
My full explanation below ↓
8
11
78
51,954
Cal.com retweeted
Sometimes upstream providers have outages and you must be ready. Here's how our team responded earlier this week to this exact situation. cal.com/blog/when-a-dependen…
5
13
355
Last night we were hit by an unfortunate downtime from an upstream provider that we were not prepared for.
Emails, SMS and Webhooks were delayed.
We are investing in better fallbacks and failovers for a single provider downtime to not take us down.
status.cal.com/events/report…
1
6
4,248
Cal.com retweeted
We've been using @calcom at @Deserve_Studio seamlessly for 3 years without a single issue, and it's been an amazing experience. Congrats on 1M verified signups and 20M bookings!
1
3
1,631
v6.6 launches today with exciting updates
Today @calcom ships v6.6 and we just broke 1,000,000 verified signups and 20,000,000 total bookings
v6.6 comes with a huge @coss_com ui redesign, our largest UI update since v1.0
I myself put many hours into building our new event type settings page and i think it was worth it
2
11
1,767
Get paid even faster, easier, and simpler. You can accept payments for any appointments made with Cal.com.
◦No additional fees. Most platforms charge 2.9% Stripe fees + platform fees.
◦ No KYC needed, accept payments right away
◦ Supports coupon codes for discounting.
◦ Native to @calcom . Click to install, and you're off!
1
7
504
Cal.com retweeted
The best thing about good marketing is that it doesn't feel like marketing.
2
1
12
1,537
Cal.com retweeted
++ HIRING ++
we are trying something new
@calcom is hiring you and your cofounder
1. one role for head of product and one product designer who can hustle
2. we can acqui-hire (signing bonus and equity) and help sell assets (within reason)
3. if your startup gone to shit our lawyers can help shut it down for you
4. you must have worked together for at least 3 years, ideally managed employees
5. only apply in pairs. we reject individual applications
6. remote works, with office preferences new york or northern germany
7. comment or email peer@cal.com to apply, send both CVs
69
28
738
127,543
We are hiring for a Head of Product and a Product Designer
but you can only apply in pairs 👇
++ HIRING ++
we are trying something new
@calcom is hiring you and your cofounder
1. one role for head of product and one product designer who can hustle
2. we can acqui-hire (signing bonus and equity) and help sell assets (within reason)
3. if your startup gone to shit our lawyers can help shut it down for you
4. you must have worked together for at least 3 years, ideally managed employees
5. only apply in pairs. we reject individual applications
6. remote works, with office preferences new york or northern germany
7. comment or email peer@cal.com to apply, send both CVs
9
1,351
Cal.com retweeted
Tomorrow night, we're hosting Cal.FM
A cafe listening room for friends of Cal to escape the tech week panels, pitches, and badges.
Drinks, bites, and a room that takes their mission seriously, and selves unseriously.
Come solo, come with friends, leave with new ones.
Limited capacity, RSVP at Cal.FM
2
1
13
3,063