head to head · open source
OpenTofu vs radar
OpenTofu has 30,204 GitHub stars, 1,367 forks, 320 open issues and last shipped yesterday. radar has 3,367 stars, 206 forks, 89 open issues and last shipped yesterday. OpenTofu leads on adoption by 797% (30,204 vs 3,367 stars). OpenTofu is written in Go under MPL-2.0; radar is written in Go under Apache-2.0. OpenTofu has attracted 5% as many forks as stars, radar 6%. radar was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| OpenTofu | radar | |
|---|---|---|
| GitHub stars | ★ 30K | ★ 3.4K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 1.4K | ⑂ 206 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenTofu if
- You weight community size — 30K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick radar if
- You want the radar feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and radar fits your workflow better
About OpenTofu
OpenTofu is an open source infrastructure as code (IaC) tool that enables users to define and manage cloud and on premises infrastructure using declarative configuration files. It lives in the cloud infrastructure management ecosystem and serves as a community driven fork of Terraform, maintaining compatibility with Terraform’s configuration language and provider ecosystem while operating under the MPL 2.0 license.
read the full OpenTofu overview →
About radar
Radar is an open source Kubernetes UI delivered as a single Go binary. It runs on a laptop or in a cluster, connects to the Kubernetes API, and needs no account, agents, or custom resources. It lives in the cloud native Kubernetes ecosystem and uses the Apache 2.0 license.
read the full radar overview →
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Frequently asked questions
Is OpenTofu or radar more popular?
OpenTofu has 30,204 GitHub stars and radar has 3,367. OpenTofu has the larger community by that measure.
Are OpenTofu and radar free?
Both are open source. OpenTofu is licensed under MPL-2.0 and radar under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenTofu and radar?
OpenTofu is written in Go and radar in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenTofu or radar?
Choose OpenTofu if you want the larger community (30,204 stars) or its MPL-2.0 licence terms. Choose radar if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.