Real-time Open Source Indexes: Databases, Headless CMSs and Static Site Generators
Tags: opensource, database, cms
Published: 2022-05-04 16:33:40

Hi DEV Community!

Here at Runa Capital every quarter we publish [ROSS Index](https://runacap.com/ross-index/) - the fastest-growing open-source startups by Github stars ⭐. ROSS index appeared to be a decent predictor for future rounds as **around 40% of early-stage startups raised $750M+ totally after being mentioned in the index**. But it has some inevitable flaws. Github stars are barely a community strength metric and manual quarterly updates are hardly scalable. So we decided to take a step forward and create a few more OSS indexes, which will be updated automatically and based on the most important metrics for open-source projects — contributors.

Now we present the first three open-source indexes — databases, headless CMSs and static site generators.

## Open-Source Database Index
We have published [Open-Source Database Index](https://runacap.com/data/db-index/) with daily updated metrics, and there are 3 clear leaders with the highest number of active contributors:

1. **[ClickHouse](https://github.com/ClickHouse/ClickHouse) (349 active contributors).** Originated in 2009 at **Yandex** and now developed by [ClickHouse, Inc.](https://clickhouse.com/) ([valued](https://clickhouse.com/blog/click-house-raises-a-250m-series-b-at-a-2b-valuationand-we-are-hiring/) at $2B in 2021).
2. **[Spark SQL](https://github.com/apache/spark) (302 active contributors).** Founded in 2009 at UC Berkeley and commercialized by **Databricks** ([valued](https://techcrunch.com/2021/08/31/databricks-raises-1-6b-at-38b-valuation-as-it-blasts-past-600m-arr/) at $38B in 2021).
3. **[ElasticSearch](https://github.com/elastic/elasticsearch) (257 active contributors).** Founded in 2010, developed and commercialized by **Elastic** ([NYSE: ESTC](https://finance.yahoo.com/quote/ESTC?), $7.2 market cap).

![Top-20 open-source databases by active contributors](https://www.coss.community/remoteimages/uploads/articles/rxe5jmj1ohyfqc139c46.png)

## Open-Source Headless CMS Index
The index of open-source headless CMSs with all important metrics is updated daily on our [website](https://runacap.com/data/cms-index/), and it has 4 clear leaders by the number of active contributors:

1. **[Directus](https://github.com/directus/directus) (161 active contributors).** Founded in 2004 in Brooklyn and raised $1M.
2. **[Pimcore](https://github.com/pimcore/pimcore) (134 active contributors).** Founded in 2010 in Salzburg and raised $3.5M.
3. **[Netlify CMS](https://github.com/netlify/netlify-cms) (101 active contributors).** Founded in 2016 in San Francisco and developed by **Netlify** ([valued](https://www.netlify.com/press/netlify-raises-usd105-million-to-transform-development-for-the-modern-web/#:~:text=SAN%20FRANCISCO%E2%80%8A-%E2%80%8ANovember%2017%2C%202021,the%20company%20at%20%242%20billion.) at $2B in 2021).
4. **[Strapi](https://github.com/strapi/strapi) (100 active contributors).** Founded in 2016 in Paris and raised $14M.


![Top-20 open-source headless CMSs by active contributors](https://www.coss.community/remoteimages/uploads/articles/d18m7iujlupln73h16df.png)

## Open-Source Static Site Generator Index
Open-Source Static Site Generator Index with all crucial metrics is updated on a daily basis on our [website](https://runacap.com/data/ssg-index/), and there are 3 clear leaders with the highest number of active contributors:

1. **[Next.js](https://github.com/vercel/next.js) (495 active contributors).** Founded in 2016 and developed by **Vercel** ([valued](https://vercel.com/blog/vercel-funding-series-d-and-valuation) at $2.5B in 2021).
2. **[Gatsby](https://github.com/gatsbyjs/gatsby) (322 active contributors).** Founded in 2015 in Berkeley and raised $47M.
3. **[Docusaurus](https://github.com/facebook/docusaurus) (279 active contributors).** Founded in 2017 and developed by **Facebook** ([NASDAQ: FB](https://finance.yahoo.com/quote/FB?p=FB&.tsrc=fin-srch), $542.5 market cap).


![Top-20 open-source SSGs by active contributors](https://www.coss.community/remoteimages/uploads/articles/tqu3q0cwk7os5qrs3s1r.png)

## Conclusion
Read more interesting insights of open-source databases, headless CMSs and static site generators on [our blog](https://medium.com/runacapital/introducing-real-time-open-source-indexes-databases-headless-cmss-and-static-site-generators-5b53cbf87188).

_What are other OS areas that need to be covered? Don’t hesitate to share your ideas with [me](https://www.linkedin.com/in/bogdan-semenov/)._