RethinkDB
RethinkDB is an open-source, distributed database management platform that stores data in JSON documents and pushes realtime updates to applications via a changefeed mechanism.
Profile
RethinkDB is an open-source, distributed JSON document database that pushes realtime data updates to applications via a built-in changefeed mechanism.
RethinkDB is an open-source, distributed database management platform that stores data in JSON documents and pushes realtime updates to applications via a changefeed mechanism. Founded in 2009 and headquartered in Mountain View, California, the company raised approximately $12 million in venture capital from investors including CRV, Highland Capital Partners, and Y Combinator. Its product portfolio centers on a single database product that supports joins, geospatial queries, secondary indexes, and map/reduce operations, with official client drivers for Python, Ruby, JavaScript (Node.js), and Java.
The company marketed its technology for use cases including reactive web and mobile apps, multiplayer games, realtime marketplaces, streaming analytics, and connected devices. RethinkDB ceased operations in October 2016 after failing to achieve sufficient commercial traction or a viable business model. The company's open-source codebase remains available on GitHub, where it has accumulated over 26,000 stars.
The project's intellectual property and brand were later acquired by the Linux Foundation in 2017, which established the RethinkDB project under the Cloud Native Computing Foundation (CNCF) umbrella. As of 2026, the original company has no revenue, no employees, and no active commercial operations. The database continues to see limited community maintenance, but no major release has occurred since version 2.4.4 in December 2022. The company's failure is frequently cited in post-mortems as a cautionary tale about the difficulty of monetizing open-source infrastructure software without a cloud-hosted offering or enterprise subscription model.
Who buys this
- Developers building realtime web and mobile applications
- Multiplayer game studios requiring low-latency state synchronization
- IoT and connected device platforms needing realtime data streaming
- Streaming analytics and realtime dashboard builders
- Realtime marketplace and trading platform operators
Strengths and what to watch
Strengths
- Built-in changefeed API enables realtime data push without separate message queue infrastructure
- Modern distributed architecture with automatic sharding, replication, and failover across clusters
- Expressive query language with support for joins, geospatial queries, map/reduce, and secondary indexes
Watch for
- Company ceased operations in October 2016 after failing to achieve commercial viability; no active development or support exists
- No cloud-hosted offering or enterprise subscription model was ever developed, limiting monetization potential
- Community maintenance is minimal; the last release (2.4.4) was in December 2022 and no major updates have followed
Key Information
- Industry
- Real Time Databases
- Founded
- 2009
- Headquarters
- Mountain View, California
Frequently Asked Questions
What is RethinkDB and what does it do?
RethinkDB is an open-source, distributed JSON document database that pushes realtime data updates to applications via a built-in changefeed mechanism. It supports joins, geospatial queries, secondary indexes, and map/reduce operations, with official client drivers for Python, Ruby, JavaScript, and Java.
How does RethinkDB's changefeed mechanism work?
RethinkDB's changefeed mechanism allows the database to push realtime updates to applications as data changes. This eliminates the need for separate message queue infrastructure, enabling reactive web and mobile apps, multiplayer games, and streaming analytics to receive live data streams directly.
What happened to RethinkDB and why did it shut down?
RethinkDB ceased operations in October 2016 after failing to achieve sufficient commercial traction or a viable business model. The company raised about $12 million in venture capital but never developed a cloud-hosted offering or enterprise subscription model, making monetization difficult.
Is RethinkDB still maintained and supported?
RethinkDB's open-source codebase remains on GitHub with over 26,000 stars, but community maintenance is minimal. The last release was version 2.4.4 in December 2022, and no major updates have followed. The project is under the Cloud Native Computing Foundation umbrella.
What are the main use cases for RethinkDB?
RethinkDB is used for reactive web and mobile apps, multiplayer games requiring low-latency state synchronization, IoT and connected device platforms needing realtime data streaming, streaming analytics and realtime dashboards, and realtime marketplaces or trading platforms.
What are the strengths and weaknesses of RethinkDB?
Strengths include a built-in changefeed API for realtime data push, automatic sharding and replication, and an expressive query language. Weaknesses include the company's 2016 shutdown, minimal community maintenance, and no cloud-hosted offering or enterprise support.
Sources
- rethinkdb.com — Product description, use cases, feature list, user testimonials, GitHub star count
- pitchbook.com — Company status (Out of Business), founding year (2009), HQ location (Mountain View, CA), funding history, investor list
- news.crunchbase.com — Context on open-source software business models and funding landscape
- www.prnewswire.com — MongoDB's fiscal 2026 financial results (irrelevant to RethinkDB but included in dossier)