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Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Reliable, multi-master JSON database with built-in replication
A fault-tolerant document store offering an HTTP/JSON API, automatic multi-node syncing, built-in admin tools, and ready-to-run Docker or VS Code development containers for rapid prototyping.
Apache CouchDB is a fault‑tolerant document database that stores data as JSON and exposes a simple HTTP/JSON API. Its core design embraces a crash‑only architecture, allowing each node to operate independently while automatically synchronizing changes across a cluster through multi‑master replication.
Developers building web or mobile applications that require offline capabilities, IoT platforms aggregating sensor streams, and enterprises needing a reliable, schema‑free store will find CouchDB a natural fit. The built‑in Fauxton UI simplifies administration, and the provided Docker and VS Code dev‑container recipes let teams spin up a full three‑node cluster in minutes.
CouchDB runs on any Unix‑like system or Windows, and can be launched directly from the source tree with ./dev/run. It supports SSL via the ibrowse client, integrates with HAProxy for load balancing, and can be extended with Erlang or any language that can speak HTTP. The project is licensed under Apache‑2.0 and benefits from an active community and extensive documentation.
When teams consider CouchDB, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Offline-first mobile app
Users can create, edit, and view data without network, syncing automatically when connectivity returns.
IoT sensor hub
Edge devices store readings locally and replicate to central CouchDB cluster for resilient aggregation.
Content management system
Authors manage articles as JSON documents via Fauxton, with versioning and conflict handling.
Distributed caching layer
HAProxy fronts a three-node CouchDB cluster, providing low-latency read/write caching for web services.
Each node records changes as append-only revisions; a built-in replicator exchanges these revisions with peers, automatically resolving conflicts using deterministic rules.
Any language that can make HTTP requests—JavaScript, Python, Java, Ruby, Go, etc.—can read and write JSON documents.
Yes, CouchDB includes SSL support via the ibrowse client, allowing HTTPS connections when configured.
Official Docker images and VS Code dev‑container recipes let you start a full cluster with a single command.
The project is released under the Apache-2.0 license, permitting free use, modification, and distribution.
Project at a glance
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