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lance

v8.0.0 Stable

A columnar data format that is 100x faster than Parquet for random access.

Apache-2.0 Edition 2024 MSRV 1.91.0
Development toolsData structuresDatabase implementationsScience #machine-learning#data-science#data-format#apache-arrow#data-analytics

Quick Verdict

  • โœ“Actively maintained (updated 12d ago)
  • โœ“Stable API (8.x for 3+ years)
  • โœ“Trusted by 635 crates
  • โœ“Team maintained (8 owners)
  • !Heavy dependency tree (99 direct deps)

Security

Checking security advisories...
Downloads
1.8M
Dependents
635
Releases
178
Size
1.7MB

Deep Insights

๐Ÿ“Š
Steady growth

267.1K downloads in the last 30 days (8.9K/day), up 2% from the previous period.

๐Ÿ”—
Moderate adoption

635 crates depend on lance. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ‘ฅ
Team maintained

This crate is maintained by a team (8 owners), reducing bus-factor risk and ensuring continuity.

โœ…
Stable for 3+ years

The API has been stable (1.x) for over 3 years with 178 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

99 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐ŸŒŸ
Used by top crates

Notable dependents include lancedb, lance-namespace-impls, lance-graph, vectordb, parquet2lance. When high-quality crates choose lance, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 19/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
8K/day avg-29%
05K10K15K4/265/146/16/197/77/24

Top Dependents

Version Adoption

v2.0.1
24%
v4.0.0
24%
v2.0.0
22%
v7.0.0
20%
v6.0.1
10%

Release Timeline

10 releasessince 2026
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10
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Feature Flags

default =["aws", "azure", "gcp", "oss", "huggingface", "tencent", "tos", "goosefs", "geo"]

aws*cligcp*geo*oss*tos*azure*protocgoosefs*tencent*dynamodbsubstraitslow_testsfp16kernelshuggingface*dynamodb_tests

README

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Maintainers

Dependencies
99
direct dependencies
Dependents
635
crates depend on lance

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