traildb/traildb

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1090 stars · 75 forks observed · 2026-08-28

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

TrailDB is a C library and tdb command-line tool for storing and querying series of discrete events (trails) in highly compressed, immutable files. It offers a simple API with bindings for Python, Go, R, Haskell, and D, and is optimized for fast queries directly on compressed data.

Use cases

• store and query clickstream event data per user
• compute metrics like bounce rate from web events
• analyze user behavior patterns and detect anomalies
• compress trillions of discrete events into small immutable files
• process event trails on a laptop from S3-stored files
• cluster and predict user behavior from event series

When to choose

• you need to store large volumes of discrete, structured events keyed by a primary identifier
• you want gzip-level compression with direct querying without full decompression
• you need immutable event files that fit distributed or S3-based architectures
• you need very high-performance event trail processing on a single core

When to avoid

• you need continuous numeric time-series like CPU metrics (use a time-series database instead)
• you need mutable, transactional event storage or updates to existing data
• you need a general-purpose relational or key-value database
• you need actively maintained software with recent releases

Facets

library · maturity maintenance

database compression search-engine cli databases big-data analytics time-series bsd c python go cross-platform event-data time-series immutable-files columnar-compression clickstream-analytics language-bindings data-engineering linux macos

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