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Cal.com on VPS

Scheduling infrastructure for absolutely everyone

See requirementsView on GitHub
GitHub stars
49259
License
MIT
Docker
Yes
GPU
Not required

Requirements

Minimum and recommended VPS specs

Badges are attached to each value. An estimate is never presented as an official project requirement.

Cal.com hardware requirements
ResourceMinimumRecommended
RAM2GB Estimated4GB Estimated
CPU2 Estimated4 Estimated
Disk20GB EstimatedNot stated Not stated

Disk figures describe the application footprint recorded in the dataset. Personal media, documents, backups and other user data can require substantially more storage.

RunOnVPS sizing suggestion

Suggested VPS tier

4 GB RAM tier

This is our sizing suggestion, derived from Cal.com’s recommended RAM of 4GB. It is not an official requirement and it does not guarantee that every workload, plug-in set or media library will fit comfortably.

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Deployment

Docker & GPU

Docker support: Yes

GPU: Not required

Check the source notes below before assuming a GPU, transcoding workload or machine-learning feature is included in the baseline deployment.

Commercial alternative

What it can replace

Calendly

Cal.com is catalogued here as a self-hosted alternative to Calendly. Feature parity varies, so compare your required workflow before migrating.

Add it to a multi-app VPS estimate →

Source check

Important notes

IMPORTANT: as of 2026-10-24 the former calcom/cal.com repo resolves to calcom/cal.diy — the MIT-licensed community edition of Cal.com (enterprise/team features removed, README states personal/non-production use); stars/license are for calcom/cal.diy, checked 2026-10-24. README prerequisites state only Node.js >=18 and PostgreSQL >=13 — 官方未标明 RAM/CPU/磁盘，均为基于其 docker-compose（app+PostgreSQL）默认部署的估算. Docker supported via repo Dockerfile/docker-compose; README notes support for Docker installs is the user's responsibility.

Data source: https://github.com/calcom/cal.diy

Project repository: https://github.com/calcom/cal.diy