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wasmtime

v43.0.0 Stable

High-level API to expose the Wasmtime runtime

Apache-2.0 WITH LLVM-exception Edition 2024 MSRV 1.91.0

Quick Verdict

  • โœ“Actively maintained (updated 7d ago)
  • โœ“Stable API (43.x for 7+ years)
  • โœ“Massive adoption (7.8K crates depend on it)
  • โœ“Team maintained (2 owners)
  • !Heavy dependency tree (58 direct deps)

Security

Checking security advisories...
Downloads
20.3M
Dependents
7.8K
Releases
178
Size
989KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

1.6M downloads in the last 30 days (54.7K/day), up 59% from the previous period.

๐Ÿ”—
Widely adopted

7.8K crates depend on wasmtime. Strong ecosystem adoption means battle-tested code and long-term stability.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 151 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

โœ…
Stable for 7+ years

The API has been stable (1.x) for over 7 years with 178 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿ“ฆ
Heavy dependency tree

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

๐ŸŒŸ
Used by top crates

Notable dependents include wit-component, smoldot, wiggle, wasmtime-wasi, sp-wasm-interface. When high-quality crates choose wasmtime, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 17/25

Yanked ratio, deps, size, maturity, features

Community 15/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
38K/day avg+107%
020K40K60K80K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v8.0.1
61%
v35.0.0
18%
v38.0.4
10%
v29.0.1
6%
v1.0.2
6%

Release Timeline

178 releases2 yankedsince 2018
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2018
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2019
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2020
12
2021
12
2022
29
2023
34
2024
35
2025
35
2026
17
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Yanked

Feature Flags

default =["anyhow", "async", "backtrace", "cache", "gc", "gc-drc", "gc-null", "wat", "profiling", "parallel-compilation", "cranelift", "pooling-allocator", "demangle", "addr2line", "coredump", "debug-builtins", "runtime", "component-model", "component-model-async", "threads", "stack-switching", "std", "debug", "compile-time-builtins"]

gc*rrstd*waveasync*cache*debug*winchanyhow*gc-drc*pulleygc-null*runtime*threads*all-archcoredump*demangle*addr2line*backtrace*call-hookcranelift*profiling*trace-logwmemcheckdebug-builtins*profile-pulleycomponent-model*stack-switching*incremental-cachepooling-allocator*reexport-wasmparserparallel-compilation*compile-time-builtins*component-model-async*custom-native-signalscustom-virtual-memorycustom-sync-primitivesmemory-protection-keyscomponent-model-async-bytes

README

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Maintainers

Dependencies
58
direct dependencies
Dependents
7.8K
crates depend on wasmtime