calcom

    calcom/cal.diy

    #213 this week

    Scheduling infrastructure for absolutely everyone.

    web
    database
    fullstack
    frontend
    api
    next-auth
    nextjs
    open-source
    postgresql
    prisma
    TypeScript
    MIT
    48.7K stars
    15.2K forks
    48.7K GitHub watchers
    Updated Oct 13, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    Ranks #39 among Web repositories tracked this week, and #39 over the last 30 days; #213 of 1,950 repositories GStars tracks this week (top 11%).

    No releases in the last 90 days; the most recent was 210 days ago, with 436 contributors on GitHub.

    Peaked at #23 in the weekly ranking the week of Aug 16, its best in the past year.

    Use Cases & Benefits

    • Provides open-source scheduling infrastructure enabling full control over data, workflows, and appearance for appointment management.
    • Offers a self-hosted, white-label, API-driven alternative to proprietary scheduling tools with customizable and extensible architecture.
    • Use for building custom-branded scheduling platforms integrated with Next.js and TypeScript for businesses needing tailored workflows.
    • Use for deploying private scheduling solutions on your own domain with PostgreSQL and Prisma for secure data management.
    • Use for integrating scheduling features into existing apps using tRPC and React with support for video calls and team coordination.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    Cal.com (formerly Calendso)

    The open source Calendly successor. You are in charge of your own data, workflow, and appearance.

    Calendly and other scheduling tools are awesome. It made our lives massively easier. We're using it for business meetings, seminars, yoga classes, and even calls with our families. However, most tools are very limited in terms of control and customization.

    That's where Cal.com comes in. Self-hosted or hosted by us. White-label by design. API-driven and ready to be deployed on your own domain. Full control of your events and data.

    Excerpt from the calcom/cal.diy README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Aug 14: +29Aug 15: +59Aug 16: +30Sep 28: +16

    +2,673 stars over 87 days across 12 snapshot days; best day +59 on Aug 15.

    Forks

    15.2K+913

    Open issues

    1.4K+106

    Compared with peers in Web

    Fastest-growing repositories GStars tracks in this cohort for the week of Oct 11, by 7-day star growth

    calcom/cal.diy compared with Web repositories by stars, 7-day star growth, health score and last release
    RepositoryStars+7dHealthLast release
    pbakaus/impeccable80.8K+3.2K754 days ago
    DmNote-App/DmNote3.6K+1.6K7544 days ago
    pingdotgg/t3code27.4K+1.6K75today
    coreyhaines31/marketingskills54.1K+1.4K752 days ago
    clash-verge-rev/clash-verge-rev151.1K+1.4K604 days ago
    calcom/cal.diy48.7K+053210 days ago
    Category median54.1K+1.6K75—

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