BenchRank
#50 in DatabasesUpdated 2026-08

RethinkDB

by RethinkDB · Open-source JSON database that pushes query results to apps in realtime

23.3 — BenchRank score out of 100

Screenshots of RethinkDB

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Homepage · RethinkDB

Homepage of RethinkDB

Overview

RethinkDB is an open-source distributed database that stores JSON documents and pushes query results to applications as the data changes, via the changes() call in its ReQL query language. It supports joins, geospatial queries, time-series and multimedia data, aggregation and map/reduce, and flexible indexing. Clusters are sharded and replicated from a web UI or the reconfigure API.

Best for
Teams building realtime web, mobile or streaming apps that want the database to push JSON updates
Pricing
No prices are shown; the site presents RethinkDB as an open-source download supported by donations and sponsors.

Strengths and trade-offs

Strengths

  • Changefeeds stream query results instead of app polling
  • Drivers for Python, Ruby, Node.js and dozens of languages
  • Shard and replicate from a web UI or one reconfigure call
  • Open source, built by a core team and 100+ contributors

Trade-offs

  • Install is documented for Linux, OS X and DigitalOcean only
  • Self-hosted: no managed or hosted service is offered on the site
  • Support channels shown are community-run IRC, Slack and GitHub
  • The project's future is funded by donations and sponsorship

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support
0 out of 100
API quality
0 out of 100
Documentation
80 out of 100
Agent friendliness
35 out of 100
Changelog
25 out of 100
Marketing site structure
20 out of 100
Operational trust
0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness
55 out of 100
Maintenance
70 out of 100

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