BTrDB

Linux · Self-hosted · API

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Freedom report

One barScore 5.3

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

BTrDB is ranked #17 of 36 in time-series databases on Freedom251. It runs on API, Linux, Self-hosted.

Compared on time-series databases

Deployment: self_hosted
SQL support: No
Horizontal scaling: Yes
Ingestion methods: Python Stream.insert API; PyArrow table insertion; pandas DataFrame insertion

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The record

Product: BTrDB is a time-partitioned, version-annotated, clustered time-series database for high-density univariate data.
Client library: The documentation provides Python access to BTrDB through the btrdb package.
Install: The maker recommends installing btrdb-python with pip and also documents installation with Anaconda.
Nanosecond timestamps: BTrDB’s example client uses nanosecond timestamps to query time-series values.
Aggregates: StatPoint queries can return min, max, mean, count, and standard deviation, with query time proportional to the number of results.
Versioning: Changes to a stream create a new version, allowing queries to be pinned to a specific version.
Stream collections: Streams have unique UUIDs and can be grouped into collections with tags and annotations for metadata.
Data formats: StreamSets can be filtered and converted to formats including pandas DataFrames and CSV files.
Commercial feature limit: Arrow-based tabular data methods are documented as available to commercial customers using Arrow-enabled servers.
Integrations: The Python documentation includes examples using Dash and Plotly to plot data queried from BTrDB.
Parallel processing: The client documents a serializer for passing BTrDB connections, streams, and StreamSets to Ray workers.
Security: The documentation describes TLS access on port 4411 and API-key authentication, which requires the TLS port.
Self-hosting and audience: The project describes BTrDB as deployable software and says Smartgrid.store targets very large city- or country-scale aggregation from smart-grid devices, while noting BTrDB can support other use cases.
Support: The documentation invites users to submit pull requests or open GitHub issues for additions or corrections.

Where it ranks on Freedom251

Best Time-Series Databases in 2026#17 of 36

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Sources

btrdb.readthedocs.io/en/latest/· checked 4 Oct 2026
btrdb.readthedocs.io/en/latest/installing.html· checked 4 Oct 2026
btrdb.readthedocs.io/en/latest/concepts.html· checked 4 Oct 2026
btrdb.readthedocs.io/en/latest/working/arrow-enabled-queries· checked 4 Oct 2026
btrdb.readthedocs.io/en/latest/working/dash.html· checked 4 Oct 2026
btrdb.readthedocs.io/en/latest/working/ray.html· checked 4 Oct 2026
btrdb.readthedocs.io/en/latest/working/server.html· checked 4 Oct 2026
github.com/BTrDB/btrdb-server· checked 4 Oct 2026