Source: https://seerepo.com/r/OpenRefine/OpenRefine
Markdown source: https://seerepo.com/r/OpenRefine/OpenRefine.md
Description: OpenRefine/OpenRefine is a Java repo with 226,064 lines written. AI signed 0.3% of the 8,101 commits of OpenRefine.

# What's inside OpenRefine/OpenRefine

OpenRefine/OpenRefine is a Java repo with 226,064 lines written. OpenRefine is built with javax.servlet:javax.servlet-api, org.eclipse.jetty:jetty-server, org.eclipse.jetty:jetty-util, and 2 more and uses Postgres, MySQL, and SQLite. AI signed 0.3% of the 8,101 commits of OpenRefine.

Its description on GitHub: “OpenRefine is a free, open source power tool for working with messy data and improving it”

Java · BSD-3-Clause · 12,097 stars · GitHub: https://github.com/OpenRefine/OpenRefine

Read on November 11, 2026, at commit 024c9c1.

## More on this repo

- [What is OpenRefine built with?](https://seerepo.com/r/OpenRefine/OpenRefine/built): OpenRefine is built with javax.servlet:javax.servlet-api, org.eclipse.jetty:jetty-server, org.eclipse.jetty:jetty-util, and 2 more and uses Postgres, MySQL, and SQLite.
- [How much of OpenRefine did AI write?](https://seerepo.com/r/OpenRefine/OpenRefine/ai): AI signed 0.3% of the 8,101 commits of OpenRefine.

## In figures

- 226,064 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 704 product files: The product’s own files. Test files are counted apart.
- 491 test files: The files that test the code.
- 22 technologies: Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

## Frequently asked questions

### What is OpenRefine/OpenRefine?

OpenRefine/OpenRefine is a Java repo with 226,064 lines written. Its description on GitHub: “OpenRefine is a free, open source power tool for working with messy data and improving it”

The proof: [its page on GitHub](https://github.com/OpenRefine/OpenRefine)

### What is OpenRefine built with?

OpenRefine is built with javax.servlet:javax.servlet-api, org.eclipse.jetty:jetty-server, org.eclipse.jetty:jetty-util, and 2 more and uses Postgres, MySQL, and SQLite.

The proof: [each service with its file and line](https://seerepo.com/r/OpenRefine/OpenRefine/built)

### How much of OpenRefine did AI write?

AI signed 0.3% of the 8,101 commits of OpenRefine.

The proof: [the commits each tool signed](https://seerepo.com/r/OpenRefine/OpenRefine/ai)

### What license does OpenRefine have?

OpenRefine is released under the BSD-3-Clause license.

The proof: [its page on GitHub](https://github.com/OpenRefine/OpenRefine)

### How many stars does OpenRefine have on GitHub?

OpenRefine had 12,097 stars on GitHub on November 11, 2026.

The proof: [its page on GitHub](https://github.com/OpenRefine/OpenRefine)

## Add this badge to your README

It links to this page and updates itself each time SeeRepo reads the repo.

```markdown
[![OpenRefine/OpenRefine on SeeRepo](https://seerepo.com/badge/OpenRefine/OpenRefine.svg)](https://seerepo.com/r/OpenRefine/OpenRefine?de=insignia)
```

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.