Databases for Edge & serverless

The in-process SQL engine that ships in every phone, browser and OS: one file, zero servers.

Turso's open-contribution SQLite fork with native vectors, a network server and embedded replicas.

Ground-up Rust rewrite of SQLite with concurrent writes, async I/O, CDC and vector search.

Single-header C++ HNSW library with SIMD distance kernels and bindings for a dozen languages.

Apache time-series database for industrial IoT with tree and table models and edge-to-cloud sync.

Lightweight distributed database that replicates SQLite over Raft behind a simple HTTP API.

Managed, distributed SQLite with pub/sub, edge functions and CRDT sync to on-device databases.

Vercel's globally replicated read-optimized config store (renamed Global Config in 2026).

The Btrieve/Pervasive lineage: zero-admin embedded database with key-level and SQL access, now edge-focused.

Managed SQLite-compatible cloud for database-per-tenant apps, with embedded replicas and offline sync.

Fully open-source multi-master distributed PostgreSQL built on the Spock logical replication extension.

Node.js runtime that fuses database, cache, app logic and MQTT/WebSocket messaging in one process.

Embedded JSON document database with SQL++ queries, vector search and sync to Couchbase.

Single-threaded stateful actors at the edge, each with its own strongly consistent SQLite store.

Serverless SQLite for Cloudflare Workers, priced per row read and written, with read replicas and time travel.

Globally cached, eventually consistent key-value store for read-heavy data at Cloudflare's edge.

Edge-native document database that syncs peer-to-peer over Bluetooth, P2P Wi-Fi and LAN without internet.

Embedded in-memory and hybrid database for devices, real-time systems and time-series analytics.

In-memory RDF store with incremental Datalog reasoning, now owned by Samsung.

Embedded BSON document database for Rust with a MongoDB-like API and optional wire-protocol server.

Korean time-series database for sensor data, bundled with MQTT, HTTP and dashboards in one binary.

Hosted key-value store driven by plain HTTP calls, with scoped access tokens, TTLs and Lua bucket scripts.

Globally distributed serverless vector index for Cloudflare Workers and Workers AI.

Embedded time-series and relational database for microcontrollers, RTOS and edge AI devices.

Small-footprint embedded database with SQL and network-model APIs for RTOS, edge and safety-certified devices.

Purpose-built time-series database, rebuilt in Rust on Arrow, DataFusion and Parquet for version 3.

HTTP/JSON document database built around multi-master replication and offline-first sync.

Real PostgreSQL compiled to WebAssembly: an embeddable Postgres for browsers, Node, Bun and Deno.

Dependency-free SQLite extension for vector search that runs anywhere SQLite does, including WASM.

Rust multi-model database (documents, graph, vectors, live queries) that runs embedded, in WASM or clustered.

Memory-first distributed JSON database with SQL++, search, vector indexes and mobile sync.

Self-tuning embeddable SQL database with MobiLink sync, still shipped inside ISV apps but frozen at v17.

Serverless, per-request-priced Redis with an HTTP API built for edge and serverless functions.

Tiny TypeScript full-text, vector and hybrid search engine for browsers, servers and the edge.

Industrial-IoT time-series database with a table-per-device model and built-in streaming and caching.

Rust observability database that keeps metrics, logs and traces in one columnar engine on object storage.

Fast on-device object database with built-in HNSW vector search and an optional commercial sync server.

Swedish standards-strict SQL engine built for embedded, automotive and real-time systems.

Canonical's embeddable C library that makes SQLite highly available with Raft replication.

Embedded, transactional key-value and JSON document engine in a single C file, with Jx9 scripting.

Compact German SQL RDBMS from Transaction Software, with a Z-curve multidimensional index (Hypercube).

Multi-model database for IoT and observability: time series, full-text, vector and key-value on Parquet.

FairCom's embeddable ISAM, SQL and JSON database engine, now sold as FairCom DB; roots in 1984's c-tree.

Couchbase's managed DBaaS: Couchbase Server clusters plus App Services sync and AI tooling.