head to head · open source
opa vs databunker
opa has 12,425 GitHub stars, 1,706 forks, 310 open issues and last shipped yesterday. databunker has 1,495 stars, 101 forks, 4 open issues and last shipped 6 days ago. opa leads on adoption by 731% (12,425 vs 1,495 stars). opa is written in Go under Apache-2.0; databunker is written in Go under MIT. opa has attracted 14% as many forks as stars, databunker 7%. opa was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (compliance), 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
| opa | databunker | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.5K |
| License | Apache-2.0 | MIT |
| Written in | Go | Go |
| Last push | 2026-11-04 | 2026-10-30 |
| Forks | ⑂ 1.7K | ⑂ 101 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick opa if
- You weight community size — 12K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick databunker if
- You want the databunker feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and databunker fits your workflow better
About opa
Open Policy Agent Open Policy Agent (OPA) is an open source, general purpose policy engine that enables unified, context aware policy enforcement across the entire stack. OPA is proud to be a graduated project in the Cloud Native Computing Foundation (CNCF) landscape. For details read the CNCF announcement. Get started with OPA Write your first Rego policy with the Rego Playground or use it to share your work with others for feedback and support. Have a look at the Access Control examples if you're not sure where to start. Install the VS Code extension to get started locally with live diagnostics, debugging and…
About databunker
Databunker Databunker is a self hosted, GDPR compliant, Go based tool for secure personal records tokenization and storage PII/PHI/KYC: Databunker intro 💣 The Big Problem with Traditional Database Encryption Traditional database encryption solutions often provide a false sense of security. While they may encrypt data at rest, they leave critical vulnerabilities: Encryption alone isn’t enough: Most vendors offer only disk block encryption, ignoring API level encryption Vulnerable GraphQL Queries: Unfiltered queries can expose unencrypted data to attackers SQL Injection Risks: Attackers can retrieve plaintext…
read the full databunker overview →
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Frequently asked questions
Is opa or databunker more popular?
opa has 12,425 GitHub stars and databunker has 1,495. opa has the larger community by that measure.
Are opa and databunker free?
Both are open source. opa is licensed under Apache-2.0 and databunker under MIT. Neither carries a licence fee.
What is the difference between opa and databunker?
opa is written in Go and databunker 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, opa or databunker?
Choose opa if you want the larger community (12,425 stars) or its Apache-2.0 licence terms. Choose databunker if its feature set, stack or MIT licence fits better. Both are self-hostable.