Cloud in a Bottle vs Kamal
Comparing two open source alternatives to Heroku and Railway and Render and Fly.io. Use the comparison below to decide which one fits your needs.
Cloud in a Bottle
AGPL-3.0Open-source platform that turns a server you control into a personal app cloud, deploying Git repos as containerized apps on your own domain.
Kamal
MITCLI deployment tool from 37signals for zero-downtime Docker container deployments.
Side-by-side comparison
| Cloud in a Bottle | Kamal | |
|---|---|---|
| License | AGPL-3.0 | MIT |
| Self-hostable | Yes | Yes |
| GitHub Stars | 153 | 14,561 |
| Forks | 7 | 748 |
| Open Issues | 10 | 149 |
| Last Commit | Sep 6, 2026 | Sep 2, 2026 |
| First Released | Apr 16, 2026 | Jan 7, 2023 |
| Categories | ||
| Tags |
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