CATEGORY
Database implementations 1,313 crates
Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.
ryo-storagePersistent storage and transaction log for RYO155MIT OR Apache-2.0
lsm-dbLog-structured merge-tree storage engine for Rust. Memtable, leveled SSTables, background compaction, and bloom-filtered point…150Apache-2.0 OR MIT
nodedb-arrayShared ND sparse array engine (coordinate-tuple indexed, tile-based) for NodeDB Origin and Lite149Apache-2.0
we-trust-postgresPostgreSQL compatibility layer for We-Trust, supporting the wire protocol and SQL dialect149MPL-2.0
entidb_sync_serverReference HTTP sync server for EntiDB149MIT OR Apache-2.0
mimir-coreMimir — agent-first memory core: foundational types and invariants.149Apache-2.0
txn-dbMVCC transaction engine for Rust storage layers. Snapshot isolation and serializable transactions with multi-version concurrency…147Apache-2.0 OR MIT
kaya-serverTCP server process for KayaDB with Raft consensus, cluster bootstrap, and client routing146MIT OR Apache-2.0
pwalPartitioned Write-Ahead Log (WAL)146Apache-2.0
post-cortex-storageStorage backends for post-cortex — lock-free RocksDB (default) and optional SurrealDB. Implements the Storage trait against the…144MIT
bplus-indexArena-backed B+Tree for in-memory sorted indexes. Zero unsafe, cache-friendly, supports non-unique keys.143MIT OR Apache-2.0
kronroe-agent-memoryHigh-level agent memory API built on Kronroe143AGPL-3.0-only
narrowdbA lightweight columnar database engine for log and time-series data141MIT
edgestore-tierTiered storage for EdgeStore — local hot cache + S3 cold archive140MIT OR Apache-2.0
ld-lucivyBM25 search engine with cross-token fuzzy matching, substring search, regex, and highlights138MIT
oxistore-kv-redbredb backend for OxiStore — Pure Rust embedded key-value store138Apache-2.0
vortex-parquet-variantVortex Parquet Variant array136Apache-2.0
talon-coreCore retrieval engine for Talon: hybrid search (BM25 + semantic + reranker), indexing, and graph-aware ranking over markdown…136MIT
turbokvA fast, embedded key-value store with BTreeMap-like API.136Apache-2.0
vortex-geoGeospatial encodings and layouts for Vortex files134Apache-2.0
sentinel-cliCommand-line interface for Cyberpath Sentinel DBMS.133Apache-2.0
xhfsBruteforce your way into storing files anywhere across an arbitrary combination of arbitrary devices.132MPL-2.0
memstead-baseEngine internals for Memstead — store, parser, validators, filesystem-mem engine. Internal library surface consumed by the…131MIT OR Apache-2.0
aimdb-persistencePersistence backend trait and extension traits for AimDB129Apache-2.0
zamsyncResilient offline-first synchronization engine for intermittent-connectivity deployments129MIT
prolly-store-slatedbSlateDB store adapter for prolly-map.129MIT OR Apache-2.0
oxistore-kv-fjallLSM-tree KV store backend for OxiStore via fjall (Pure Rust)128Apache-2.0
kael_storagePlatform services storage scaffolding for Kael126Apache-2.0
entdbRust-based SQL database engine core for EntDB.125Apache-2.0
opendbA high-performance hybrid embedded database in pure Rust with KV, records, graph, and vector support124Apache-2.0
supertable-coreCore library for SuperTable, a next-generation open table format121MIT OR Apache-2.0
memstead-engineFull engine extension for Memstead — multi-mem policy, mem management, cross-mem-link resolution, lifecycle. Depends on…121MIT OR Apache-2.0
oxistore-kv-sledsled backend for OxiStore — Pure Rust embedded key-value store121Apache-2.0
lora-ioLoraDB — row-level bulk import/export codecs (JSONL, JSON, CSV) over LoraValue.120BUSL-1.1
hostbatGeneric deterministic module host: mount content-identified modules over a syncbat Core.118MIT OR Apache-2.0
rune-graphEmbedded directed property graph: nodes, edges, labels, key-value properties, traversal, algorithms, and optional snapshot…117MIT
cqlite-cliCommand-line interface for CQLite — read Apache Cassandra 5.0 SSTables without a cluster116Apache-2.0
donadbDonaDB is TruthLinked Labs' lightweight, crash-safe LSM storage engine for high-throughput post-quantum blockchain nodes.115Apache-2.0 OR MIT
alun-dbAlun database: Row-based CRUD, transactions, hooks, SQL templates, migrations115Apache-2.0
frp-persistenceDurable storage backend for frp using infinite-db.113MIT OR Apache-2.0
celerix-storeA lightweight, low-latency KV data store with 1:1 parity with the orginal golang version, atomic persistence, and AES-256-GCM…112MIT
factstr-postgresPostgreSQL store for FACTSTR with append, query, streams, and durable streams.111MIT OR Apache-2.0
factstr-memoryIn-memory FACTSTR store for tests, examples, and local development.110MIT OR Apache-2.0
memstead-git-branchMem-repo engine for Memstead — multi-mem, git-backed typed entity graphs. Internal library surface consumed by the memstead…109MIT OR Apache-2.0
we-trust-s3Amazon S3 compatibility layer for We-Trust storage, enabling S3 clients to interact with YYKV109MPL-2.0
rvf-cliUnified CLI for RuVector Format vector stores109MIT OR Apache-2.0
nisabaData quality, reconciliation, and validation across different data stores109Apache-2.0
crabka-pgtypesPostgreSQL value layer for the Crabka Gres engine: Datum, column types, text and binary wire encodings, casts, and operator…109Apache-2.0
wombatkv-formatWire-format codecs for WombatKV: 16-byte universal envelope (magic + version + CRC32C + len per RFC 0018), blake3 chain hashing,…108Apache-2.0
nodedbLocal-first, real-time, edge-to-cloud hybrid database for multi-modal workloads107BUSL-1.1
blockdbA simple blockchain block store in Rust107non-standard
crabka-pgkvOrdered key-value storage seam for the Crabka Gres engine with order-preserving key encoding and versioned row encoding107Apache-2.0
taidbA small embeddable Rust key-value and vector database for local-first AI applications.105MIT
retia-rocksBindings to RocksDB used by the retia crate (fork of cozorocks)105MPL-2.0
crabka-pgwirePostgreSQL v3 wire-protocol server: simple and extended query protocols, SCRAM-SHA-256, TLS, and CancelRequest105Apache-2.0
d7s_dbDatabase abstraction layer for d7s (PostgreSQL and SQLite)104MIT
rvf-serverRuVector Format TCP/HTTP streaming server with REST API104MIT OR Apache-2.0
cobble-cliCommand-line tools for Cobble storage engine104Apache-2.0
crabka-pgmvccPostgreSQL-faithful MVCC for the Crabka Gres engine: xids, clog, snapshots, and HeapTupleSatisfiesMVCC visibility104Apache-2.0
oxistore-compressCompression codec bridge for OxiStore — Pure Rust via OxiARC (oxiarc-deflate)103Apache-2.0
crabka-pgcatalogSystem catalog for the Crabka Gres engine: tables, columns, and FDW metadata as a stateless view over the KV storage seam103Apache-2.0
crabka-pgexecSQL execution engine for Crabka Gres: turns parsed SQL into catalog and KV operations under MVCC and implements the pgwire Engine…103Apache-2.0
crabka-pgparserHand-written PostgreSQL SQL lexer and parser producing the Crabka Gres AST102Apache-2.0
anvil-storageRust gRPC client for Anvil Storage101Apache-2.0
fsqlite-wasmWebAssembly bindings for FrankenSQLite101non-standard
braid_rsUnified Braid Protocol implementation in Rust, including Braid-HTTP, Antimatter CRDT, and BraidFS.100MIT OR Apache-2.0
cobble-data-structureStructured data API wrappers for Cobble100Apache-2.0
sqlriteRAG-oriented SQLite wrapper for AI agent workloads100MIT
searchlite-coreEmbedded full-text search engine: BM25, inverted index, WAL durability, aggregations100MIT
xrangeHigh-performance range overlap search algorithms / 高性能区间重叠搜索算法98MulanPSL-2.0
oxistore-encryptCell-level AEAD encryption decorator for OxiStore KV stores (XChaCha20-Poly1305)98Apache-2.0
oxistoreOxiStore — Pure Rust storage facade: KV, columnar, and blob abstractions98Apache-2.0
darwenA relational algebra library for Rust96MIT
kosaKośa is a reliable page-based storage engine w/ fire-and-forget durability semantics96MIT OR Apache-2.0
trifleEmbedded, typo-tolerant trigram fuzzy search backed by SQLite, for large corpora of small documents.96MIT OR Apache-2.0
logdbEmbedded, append-only, crash-recoverable, optionally tamper-proof local log database96Apache-2.0
moraineA SlateDB-backed catalog for DuckLake96MIT OR Apache-2.0
starrocks-stream-loadStarRocks Stream Load SDK for Rust.95Apache-2.0
ember-clientasync RESP3 client library for ember95Apache-2.0
index-dbB+tree indexing primitive for Rust storage engines - ordered keys, range scans, and concurrent access over paged storage.91Apache-2.0 OR MIT
tensordb-coreCore engine for TensorDB — a bitemporal ledger database with MVCC, full SQL, and LSM storage90PolyForm-Noncommercial-1.0.0
mnemefusion-coreUnified memory engine for AI applications - Core library90MIT OR Apache-2.0
page-dbThe paging substrate beneath B-tree and heap storage engines - fixed-size pages, CRC32 headers with LSN slots, an LRU buffer pool…90Apache-2.0 OR MIT
nexus-coreCore storage engine, WAL, topology, and data-path primitives for Nexus.89MIT
timsliteHigh-performance mmap-backed time-series storage engine with queues and journal.88MIT
nopaldbHigh-performance graph database with ACID transactions, MVCC time-travel, and Arrow analytics87MPL-2.0
indexmap_storePersistent IndexMap for Rust — embedded key-value store with in-memory hash map + append-only WAL on disk. O(1)…86MIT
salamander-dbEmbedded event-sourcing engine with instant recovery — the append-only log is the only durable structure.86MIT
kuatia-moneyMonetary Cent type for the Kuatia ledger with a compile-time swappable integer backing.86Apache-2.0
wombatkv-coreCore types, errors, and shared primitives for WombatKV (object-storage-native KV cache system for LLM inference). Leaf crate, no…85Apache-2.0
wombatkv-radixIn-RAM radix tree + SlateDB-backed L1 metadata index for WombatKV. Implements the longest-prefix lookup over content-addressed KV…85Apache-2.0
wombatkv-storeObject-store backend (S3 / MinIO / R2 / GCS) for WombatKV. Async writes, sync reads, per-namespace LRU eviction with CAS safety.85Apache-2.0
quipu-coreEmbedded, OS-independent audit log storage engine: typed entity registries, field encryption, retention, and time-travel queries.83Apache-2.0
subms-lsm-treesubmillisecond.com cookbook recipe - storage: subms-lsm-tree. A working LSM tree (memtable, immutable SSTables, bloom-filter…83MIT OR Apache-2.0
jdb_fsstFast Static Symbol Table (FSST) compression for string data / 针对字符串数据优化的快速静态符号表压缩82MulanPSL-2.0
oxigraph-webA high-performance, full-featured web API for Oxigraph.82MIT OR Apache-2.0
we-trust-sqliteSQLite compatibility layer for we-trust protocol, providing native SQLite file access and SQL execution80MPL-2.0
sourceryEvent-Sourcing library in pure rust80GPL-3.0-only
lock-dbLock manager and deadlock detection for Rust databases - row/range locks, multiple granularities, and wait-for cycle detection.80Apache-2.0 OR MIT
scepterComposable primitives for planet-scale time-series routing, indexing, and aggregation.80MIT OR Apache-2.0
kuatia-typesDomain types for the Kuatia ledger: postings, accounts, transfers, books.80Apache-2.0
git-vdbAn embedded vector database backed by immutable Git trees80Apache-2.0
arkeionEmbedded, versioned, auditable database engine — as if SQLite and Git had a child, born in Europe.78MIT OR Apache-2.0
xfilesPersistence of data using X, formerly known as Twitter, as a public filesystem.78MIT
mirr-kb-nativeMIRR native Rust RAG core with semantic and lexical retrieval78Apache-2.0
bison-dbAn embedded, document-oriented database for Rust - schemaless documents, secondary indexes, and ACID single-file storage, with…77Apache-2.0 OR MIT
writeaheadA partitioned write-ahead log (WAL) for building append-only, high-throughput durability systems75MIT OR Apache-2.0
synclessordered, atomic storage without durability guarantees74MIT
nescionescioDB (Aporia): a database whose primary object is ignorance — evidence with decay, regions with entropy, and queries that…74MIT
d7sDatabase client73MIT
xz-embedText embedding and vector storage abstraction layer73MIT OR Apache-2.0
rustqueueBackground jobs without infrastructure — embeddable job queue with zero external dependencies72MIT OR Apache-2.0
prolly-store-rocksdbRocksDB store adapter for prolly-map.72MIT OR Apache-2.0
amaters-serverAmateRS server binary71Apache-2.0
agent-envoyMessage/coordination server for AI coding agents using sqlitegraph pub/sub70GPL-3.0-only
prolly-store-redisRedis store adapter for prolly-map.70MIT OR Apache-2.0
taguruLong-term semantic memory for LLMs: an association-graph server with structural recall, plus an MCP stdio bridge69MIT
tidesdb-rsRust wrapper for TidesDB, a fast and efficient key-value storage engine68MIT
sqlmodel-mysqlMySQL driver for SQLModel Rust68LicenseRef-MIT-OpenAI-Anthropic-Rider
sqlmodel-postgresPostgreSQL driver for SQLModel Rust68LicenseRef-MIT-OpenAI-Anthropic-Rider
prolly-store-postgresPostgreSQL store adapter for prolly-map.68MIT OR Apache-2.0
vortex-turboquantTurboQuant vector extension type67Apache-2.0
wombatkv-nodeHigh-level WombatKV node API, store + lookup + touch + foyer-backed local cache. The Rust surface that wombatkv-cabi wraps for…66Apache-2.0
prolly-store-dynamodbDynamoDB store adapter for prolly-map.66MIT OR Apache-2.0
piramidAll-in-one binary for distributed model inference, retrieval, and vector search.65Apache-2.0
uldbAgentic AI database -- storage engine and server65BUSL-1.1
cupldLocal graph database CLI and REPL.65MIT
rustmemodbIn-memory SQL database with transaction support, connection pooling, and MVCC64MIT OR Apache-2.0
velocidbA high-performance SQLite reimplementation in Rust optimized for modern hardware63MIT
prolly-store-pglitePGlite sidecar store adapter for prolly-map.62MIT OR Apache-2.0
moltendbA real-time, local-first NoSQL database written in Rust.61non-standard
minikvDistributed key-value store with Raft consensus, encryption at rest, and pluggable storage backends.61MIT
kuatia-storageStorage abstraction and conformance suite for the Kuatia ledger.61Apache-2.0
prolly-store-mysqlMySQL store adapter for prolly-map.61MIT OR Apache-2.0
prolly-store-spannerCloud Spanner store adapter for prolly-map.61MIT OR Apache-2.0
neleus-dbLocal-first Merkle-DAG database for AI agents with cryptographic proofs and immutable versioning60MIT
rtaṚta (ऋत) is a minimal metadata store for durable system state60MIT OR Apache-2.0
erubusTemporal knowledge graph for AI agents and robots — bitemporal facts, confidence decay, one binary, embedded SQLite59MIT
graphlink-macrosProcedural macros for the graphlink crate.59MIT
mapxHigh performance memory map with disk synchronization58MIT
stonixA lightweight, atomic key-value storage engine optimized for ARM and Intel hardware.57MIT OR Apache-2.0
fr-searchA high-performance, ultra-optimized search engine and document tagging system built on Tantivy and Meta's FastText model.57MIT
deputy-storeContent-addressed dirty/prod stores and the encrypted metadata database.57MIT OR Apache-2.0
prolly-store-cosmosdbCosmos DB store adapter for prolly-map.57MIT OR Apache-2.0
we-trust-d1Cloudflare D1 compatibility layer for We-Trust, providing a serverless-friendly database interface56MPL-2.0
we-trust-vectorVector search and AI-native protocol for We-Trust, supporting high-dimensional embeddings and similarity search56MPL-2.0
dejadb-storeContent-addressed embedded store with hybrid recall (Turso/SQLite) for DejaDB.56MIT OR Apache-2.0
graphdbliteEmbedded graph database with Cypher support. SQLite-grade simplicity, graph-native performance.56MIT
bitcoinleveldb-posixwfilePOSIX-backed implementation of a buffered, durable LevelDB-style WritableFile for the Bitcoin-leveldb stack, using libc syscalls…55MIT
anamdbAnamDB — the AI-native, differentiable logic kernel for autonomous agents.55Apache-2.0
quipu-middlewareAsync audit-logging middleware: event pipeline with DLQ and fallback, programmable pre/post filters, permissions, and a tower…55Apache-2.0
deebeeA lightweight graph database built on a philosophy of simplicity, flexibility, and sugar.55MIT
ultima-dbHigh-performance transactional embedded database53Apache-2.0
locusdbA zero-dependency, from-scratch Redis-protocol datastore in Rust — with a reactive changefeed, geo-first spatial model, and…53MIT
db-cliA high-performance CLI tool for inspecting and merging SQLite databases51MIT OR Apache-2.0
minidbMinimal-but-functional structured wrapper for redb51MPL-2.0
better-duck-coreRust DuckDB client with Diesel ORM support51MIT OR Apache-2.0
novakvAn embedded, ordered key-value store for Rust.50(MIT OR Apache-2.0) AND BSD-3-Clause
kuatia-corePure, sans-IO core logic for the Kuatia ledger: validation, hashing, posting selection.50Apache-2.0
tokitai-filekv实验性生产级 LSM-Tree KV 存储引擎，具备完整错误体系、指标体系和崩溃安全机制49MIT OR Apache-2.0
entidb_testkitTest utilities for EntiDB48MIT OR Apache-2.0
dejadbCommand-line interface for DejaDB, the embedded memory engine for AI agents.48MIT OR Apache-2.0
kuatia-storage-sqlSQLite/PostgreSQL storage backend for the Kuatia ledger.48Apache-2.0
prolly-store-redbredb store adapter for prolly-map.47MIT OR Apache-2.0
llm-memory-graphGraph-based context-tracking and prompt-lineage database for LLM systems47MIT OR Apache-2.0
entidb_cliCLI tools for EntiDB47MIT OR Apache-2.0
entidb_sync_engineSync state machine and engine for EntiDB47MIT OR Apache-2.0
foxstash-dbDatabase layer for foxstash — collections, filtering, hybrid search, WAL persistence, and concurrent access47MIT
skiff-rsAn embedded Raft consensus library backed by sled47MIT
entidb_ffiStable C ABI for EntiDB bindings46MIT OR Apache-2.0
thunderdbA minimal, embedded, transactional key-value database engine46MIT
hyphae-storageAppend-only durable local storage, recovery, snapshots, and backups for Hyphae.46Apache-2.0
litestashHigh-performance key-value store using SQLite static lock sharding. Native Rust client for the litestash-engine.45Apache-2.0
dejadb-calCAL (Context Assembly Language) lexer, parser, and executor for DejaDB.45MIT OR Apache-2.0
hyphae-retrievalExact provider-neutral vector retrieval with explicit abstention for Hyphae.45Apache-2.0
aimdb-persistence-sqliteSQLite persistence backend for AimDB44Apache-2.0
boogy-dbEmbedded in-place B+ tree storage engine with WAL, per-table concurrency, secondary indexes, lazy row decoding, and optional…44Apache-2.0
toondb-mcpMinimal MCP server for ToonDB - AI-native database44Apache-2.0
wombatkv-daemonWombatKV daemon binary + SHM/TCP/HTTP listeners for the daemon deployment mode. Sits between multiple engine clients (ds4, future…44Apache-2.0
turbofoxA persistant and embedded KV Database built for on-device caching.43MIT OR Apache-2.0
seqlogAn embedded append-only sequence log store.43MIT
flashkvA high-performance, in-memory Key-Value database built in Rust42MIT
entdb-serverPostgreSQL wire-compatible server for EntDB.42Apache-2.0
LazySqlitesimple tui for sqlite42MIT
repox_derivetrait framework for data repository patterns42MIT
minigraf-ffiUniFFI bridge for Minigraf — bi-temporal graph database42MIT OR Apache-2.0
rustminidbA lightweight embedded database with native REST API42BSL-1.0
we-trust-sqlserverMicrosoft SQL Server compatibility layer for We-Trust, enabling T-SQL applications to connect to YYKV41MPL-2.0
we-trust-redisRedis compatibility layer for We-Trust, providing a high-speed key-value interface41MPL-2.0
braid_http_rsUnified Braid Protocol implementation in Rust, including Braid-HTTP, Antimatter CRDT, and BraidFS.41MIT OR Apache-2.0
radixoxRadixOx — Redis-compatible in-memory key-value store41MIT
hyphae-engineEmbeddable facade for the autonomous, durable, and verifiable Hyphae data engine.41Apache-2.0
mocra-clusterEmbedded Raft + redb control plane for the mocra distributed crawler framework: leader election, distributed locks with fencing,…41MIT OR Apache-2.0
mnemo-dbName-reservation pointer crate for the mnemo memory database. mnemo ships as focused crates — install `mnemo-core` (engine) and…41Apache-2.0
aimdb-wasm-adapterWebAssembly runtime adapter for AimDB - browser-native async runtime support40Apache-2.0
we-trust-mysqlMySQL compatibility layer for We-Trust, supporting the wire protocol and SQL dialect40MPL-2.0
lattice-dbA high-performance, embedded graph database optimized for fast set-based search.
Built on Roaring Bitmaps and Redb for instant…40MIT
ferrumdb-cliCLI tool for FerrumDB — launch Ferrum Studio web dashboard for any .db file.40MIT
lucisearchEmbeddable, in-process search engine — the SQLite/DuckDB of search40MIT
we-trust-arrowApache Arrow integration for We-Trust, providing high-performance columnar data interchange39MPL-2.0