tidwall/buntdb

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

4864 stars · 307 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

BuntDB is an embeddable, in-memory key/value database written in pure Go that persists to disk with an append-only file and provides ACID transactions. It supports custom indexes, JSON field indexing, multi-value indexes, TTL expiration, and geospatial indexing up to 20 dimensions.

Use cases

• embed a fast key/value store in a Go application
• store and query geospatial data with spatial indexes
• index fields inside JSON documents
• add TTL-based expiration to cached items
• run ACID transactions with rollback support in-process
• iterate over key ranges in ascending or descending order

When to choose

• you need an embedded database with no external server dependency
• your dataset fits in memory and read speed matters more than storage capacity
• you need geospatial or custom indexing over key/value data
• you want ACID guarantees with a simple Go API

When to avoid

• your data is too large to fit in memory
• you need multiple processes or network access to the database
• you need SQL queries or a rich relational model
• you need heavy concurrent write throughput

Facets

library · maturity stable

database search-engine caching databases developer-tools backend go cross-platform key-value-store in-memory-database embedded-database geospatial-index acid ttl-expiration -indexing

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