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protobuf

v3.7.2 Stable

Protocol Buffers - Google's data interchange format

MIT Edition 2021

Quick Verdict

  • Actively maintained (updated 5d ago)
  • Stable API (3.x for 11+ years)
  • Massive adoption (6.2K crates depend on it)
  • Team maintained (3 owners)
  • Permissive license (MIT)

Security

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Downloads
141.5M
Dependents
6.2K
Releases
175
Size
212KB

Deep Insights

📈
Strong growth momentum

16.1M downloads in the last 30 days (538.2K/day), up 36% from the previous period.

🔗
Widely adopted

6.2K crates depend on protobuf. Strong ecosystem adoption means battle-tested code and long-term stability.

👥
Team maintained

This crate is maintained by a team (3 owners), reducing bus-factor risk and ensuring continuity.

Stable for 11+ years

The API has been stable (1.x) for over 11 years with 175 releases. This level of maturity means you can depend on it without worrying about breaking changes.

🌟
Used by top crates

Notable dependents include prometheus, protobuf-codegen, pprof, protobuf-parse, protobuf-codegen-pure. When high-quality crates choose protobuf, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 19/25

Yanked ratio, deps, size, maturity, features

Community 15/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 7/15

Docs, repo, license, metadata

Download Trend

Daily downloads · last 90 days
442K/day avg+38%
0200K400K600K800K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v4.34.0-release
73%
v4.34.1-release
19%
v4.33.5-release
4%
v4.35.0-rc.1
3%
v4.34.0-rc.2
1%

Release Timeline

10 releasessince 2026
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Feature Flags

with-bytes

README

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Maintainers

Dependencies
4
direct dependencies
Dependents
6.2K
crates depend on protobuf