Data Where You Need It

Apache CouchDB™ lets you access your data where you need it by defining the Couch Replication Protocol that is implemented by a variety of projects and products that span every imaginable computing environment from globally distributed server-clusters, over mobile phones to web browsers. Software that is compatible with the Couch Replication Protocol include: PouchDB, Cloudant, and Couchbase Lite.

Store your data safely, on your own servers, or with any leading cloud provider. Your web- and native applications love CouchDB, because it speaks JSON natively and supports binary for all your data storage needs. The Couch Replication Protocol lets your data flow seamlessly between server clusters to mobile phones and web browsers, enabling a compelling, offline-first user-experience while maintaining high performance and strong reliability. CouchDB comes with a developer-friendly query language, and optionally MapReduce for simple, efficient, and comprehensive data retrieval.

See the introduction, technical overview for more information, or learn What’s new in 2.0

Single Node Database

CouchDB is a terrific single-node database that works just like any other database behind an application server of your choice.

Most people start with a single node CouchDB instance. More demanding projects can seamlessly upgrade to a cluster.

Cluster

CouchDB is also a clustered database that allows you to run a single logical database server on any number of servers or VMs.

A CouchDB cluster improves on the single-node setup with higher capacity and high-availability without changing any APIs.

HTTP/JSON

CouchDB makes use of the ubiquitous HTTP protocol and JSON data format and is compatible with any software that supports them. CouchDB also works great with external tools like HTTP proxy servers, load balancers.

Offline First Data Sync

CouchDB’s unique Replication Protocol is the foundation for a whole new generation of “Offline First” applications for Mobile applications and other environments with challenging network infrastructures.

Ecosystem

CouchDB is built for servers (from a Raspberry Pi to big cloud installations), while PouchDB is built for mobile & desktop web-browsers and Couchbase Lite is built for native iOS & Android apps.

And all of them can seamlessly replicate data with each other.

Reliability

CouchDB is serious about data reliability.

Individual nodes use a crash-resistent append-only data structure. A multi-node CouchDB cluster saves all data redundantly, so it is always available when you need it.


Want to Contribute?

We welcome your contributions. CouchDB is an open source project. Everything, from this website to the core of the database itself, has been contributed by helpful individuals. The time and attention of our contributors is our most precious resource, and we always need more of it. Our primary goal is to build a welcoming, supporting, inclusive and diverse community. We abide by Code of Conduct and a set of Project Bylaws. Come join us!

CouchDB Core

Help shape the future of CouchDB! There’s still plenty of work to be done on the core database. We use JIRA to track issues and GitHub for pull requests.

Fauxton

Lend your JavaScript skills to the next-generation web UI for CouchDB. Fauxton is the “killer app” that makes CouchDB so powerful and easy to manage.

Marketing

We’re not just building a database – we’re crafting the CouchDB story. Help us promote CouchDB: plan meetups, make video tutorials, write blog posts.

Website

Got a few suggestions for the very website you’re reading right now? Think the UX, copy, or layout could be better? Welcome! We’d love to hear from you.

Documentation

Docs can be improved indefinitely. If you’ve got a flair for technical writing, help us make the docs clearer, better structured, or even translate them.

Guidance

You can be the first person someone interacts with when they have a question. Giving guidance is a great way to help others while learning CouchDB.

Mailing Lists


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Announcement List   Subscribe · Post · Unsubscribe

This is a low-traffic list for release announcements and security disclosures.

User List   Subscribe · Post · Unsubscribe

This is a general discussion and support forum for all CouchDB users.

Localisation List   Subscribe · Post · Unsubscribe

Do you speak more than one language? Help us to translate CouchDB!

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A place to discuss CouchDB-compatible replication, and the systems that implement it.

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A place to co-ordinate on CouchDB marketing activities.

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This is where people working on CouchDB itself get together and discuss things.

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Design   Subscribe · Post · Unsubscribe

A place for UI/UX designers and enthusiasts to discuss Fauxton, the CouchDB website, and any other design related topics.


Download CouchDB 2.0.0

Download CouchDB 1.6.1


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