armon/bloomd

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1248 stars · 109 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Bloomd is a high-performance C network daemon that exposes bloom filters and operations over them to clients via a simple, memcached-like ASCII protocol. It supports scalable bloom filters, disk persistence with asynchronous flushes, and automatic faulting of cold filters out of memory.

Use cases

• run a networked bloom filter service for set membership checks
• check if a URL or item was seen before with low memory usage
• deduplicate millions of items with a small false-positive rate
• share probabilistic sets across multiple application servers
• build a cheap pre-filter in front of a database or cache

When to choose

• you need bloom filters accessible from many languages over a simple text protocol
• memory efficiency matters more than exact answers
• you want a standalone daemon similar in spirit to memcached

When to avoid

• you need exact set membership with zero false positives
• you want an embedded in-process library rather than a network service
• you need active development, modern tooling, or guaranteed long-term support

Facets

service · maturity maintenance

database http-server caching databases backend developer-tools c self-hosted bloom-filter ascii-protocol probabilistic-data-structures memcached-like network-daemon sketching linux macos

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markdown · JSON · MCP: product_card(name="armon/bloomd")