head to head · open source
floci vs robusta
floci has 28,962 GitHub stars, 3,224 forks, 130 open issues and last shipped yesterday. robusta has 3,130 stars, 329 forks, 204 open issues and last shipped 2 days ago. floci leads on adoption by 825% (28,962 vs 3,130 stars). floci is written in Java under MIT; robusta is written in Python under MIT. floci has attracted 11% as many forks as stars, robusta 11%. floci was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (devops, docker), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| floci | robusta | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 3.1K |
| License | MIT | MIT |
| Written in | Java | Python |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 3.2K | ⑂ 329 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick floci if
- You weight community size — 29K stars and counting
- You want the MIT license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick robusta if
- You want the robusta feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and robusta fits your workflow better
About floci
Any Cloud. Locally. Light, fluffy, and always free No account. No auth token. No feature gates. Just docker compose up . Quick Start · Features · Services · SDKs · Testcontainers · Migration · Docs What is Floci? Floci is a free, open source local AWS emulator for development, testing, and CI. It gives you AWS shaped services on your machine without requiring a cloud account, an auth token, or paid feature gates. Point your AWS SDK, CLI, Terraform, CDK, OpenTofu, or test suite at and keep your existing workflows. Already using LocalStack? Floci is a drop in replacement: swap the image and keep going. See…
read the full floci overview →
About robusta
Robusta Classic Prometheus Alert Enrichment for Kubernetes Note: This repository contains Robusta Classic — the rule based alert enrichment engine. For AI powered root cause analysis, see HolmesGPT. Both can be installed together as part of the Robusta platform. What Can Robusta Do? How it Works Installation Integrations ↗ Docs ↗ Slack Community ↗ Compatible with kube prometheus stack, Prometheus Operator, and more. Robusta integrates with Prometheus by webhook and adds features like: Smart Grouping reduce notification spam with Slack threads 🧵 AI Investigation Kickstart alert investigation with AI (optional)…
read the full robusta overview →
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Frequently asked questions
Is floci or robusta more popular?
floci has 28,962 GitHub stars and robusta has 3,130. floci has the larger community by that measure.
Are floci and robusta free?
Both are open source. floci is licensed under MIT and robusta under MIT. Neither carries a licence fee.
What is the difference between floci and robusta?
floci is written in Java and robusta in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, floci or robusta?
Choose floci if you want the larger community (28,962 stars) or its MIT licence terms. Choose robusta if its feature set, stack or MIT licence fits better. Both are self-hostable.