Dgraph
Dgraph is a distributed graph database that answers connected-data questions, such as who follows whom or which parts depend on which suppliers, in a single query instead of a pile of joins. Describe your data in a GraphQL schema and Dgraph generates a GraphQL API with its graph backend, or write DQL, the native query language, for deeper traversals. Indexes handle full-text search, regular expressions, and geo queries, and vector indexes add similarity search over embeddings. Transactions stay ACID across the cluster, replication is consistent, and data shards rebalance themselves as the dataset grows. Ratel, the companion web IDE, runs queries and mutations, draws results as a graph, edits the schema, lists cluster nodes, and manages backups. Bulk Loader fills a new cluster with large datasets, while Live Loader adds or upserts records into a running one. Access control lists and namespaces keep tenants apart within one cluster. It suits data spread across more than ten tables linked by foreign keys, sparse records that fit poorly in SQL, and schemas that must stay simple to read and change. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.
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