roaring by RoaringBitmap
Roaring bitmaps in Go (golang), used by InfluxDB, Bleve, DataDog
About roaring
From the project's README at github.com/RoaringBitmap/roaring. Lightly cleaned for readability; for the full source see the upstream repo.
[](https://godoc.org/github.com/RoaringBitmap/roaring) [](https://goreportcard.com/report/github.com/RoaringBitmap/roaring)
Roaring bitmaps are used by several major systems such as [Apache Lucene][lucene] and derivative systems such as [Solr][solr] and [Elasticsearch][elasticsearch], [Apache Druid (Incubating)][druid], [LinkedIn Pinot][pinot], [Netflix Atlas][atlas], [Apache Spark][spark], [OpenSearchServer][opensearchserver], [anacrolix/torrent][anacrolix/torrent], [Whoosh][whoosh], Redpanda, [Pilosa][pilosa], [Microsoft Visual Studio Team Services (VSTS)][vsts], and eBay's [Apache Kylin][kylin]. The YouTube SQL Engine, Google Procella, uses Roaring bitmaps for indexing.
[lucene]: https://lucene.apache.org/ [solr]: https://lucene.apache.org/solr/ [elasticsearch]: https://www.elastic.co/products/elasticsearch [druid]: https://druid.apache.org/ [spark]: https://spark.apache.org/ [opensearchserver]: http://www.o
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 2.9k | github.com/RoaringBitmap/roaring |
| GitHub forks | 250 | github.com/RoaringBitmap/roaring |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 12.0 years | since Jul 2014 |
| Last commit | 2 months ago | Apr 14, 2026 |
| Releases shipped | 117 | last: 2 months ago |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host roaring?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed Jun 21, 2026.
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