Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-20 21:58 UTC

wasm-bindgen / wasm-bindgen

Facilitating high-level interactions between Wasm modules and JavaScript

RustApache-2.0★ 9,196 stars⑂ 1,257 forkssince Dec 2017View on GitHub ↗

wasm-bindgen/wasm-bindgen holds a health index of 94 out of 100, placing it in the Exceptional band. It scores highest on Vitality (94/100) and lowest on Security (63/100). It was last updated today. 2 contributors account for most of its recent work.

94
overall / 100
Exceptional

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

94
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 81 is calibrated to 94 on the published index scale (record calibration 2026-08-02).

Ownership

wasm-bindgenOrganization
157 followers7 public repossince Jul 2025

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iowasm-bindgen0.2.12951,073,17912925 days agowasm

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

94Exceptional · 21% of overall
How it's scored
36/36Push recency — last push 0 days ago
31.8/36Commit cadence — 46/52 weeks with commits
18/18Commit volume — 402 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year402
human_commit_share0.99
days_since_last_push0
active_weeks_last_year46
How it's scored
27/27Ships releases — 100 releases published
36/36Release recency — latest release 25 days ago
27/27Release cadence — a release every ~18.6 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count100
latest_release_tag0.2.129
releases_from_tagsno
days_since_latest_release25
mean_days_between_releases18.6

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

90Excellent · 17% of overall
How it's scored
60/60Stars — 9,196 stars
25/25Forks — 1,257 forks
11/15Watchers — 98 watchers
Inputs used
forks1,257
stars9,196
watchers98
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges5
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesgithub.com, inspect.software, shields.io
has_pull_request_templateyes
How it's scored
80/80Monthly downloads — 51,073,179 downloads/month across crates
0/20Registry dependents — not reported by this ecosystem
Inputs used
packageswasm-bindgen
dependents—
ecosystemscrates
total_downloads596,951,485
monthly_downloads51,073,179
unverified_packages_excluded—
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

74Good · 23% of overall
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
13.3/22.5Commit distribution — top contributor authored 41% of commits
13.5/13.5Contributor breadth — 98 contributors
10/10OpenSSF Scorecard: Contributors — project has 63 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled98
top_contributor_share0.411
How it's scored
33.5/42Issue resolution — 80% of issues closed
26/30PR acceptance — 2,434/2,806 decided PRs merged
13/13Newcomer PR acceptance — 12/12 first-time contributors' PRs merged in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs2,434
open_issues465
closed_issues1,834
prs_merged_7d21
prs_decided_7d23
prs_merged_30d54
prs_decided_30d58
issue_closed_ratio0.798
closed_unmerged_prs372
first_time_authors_30d8
first_time_prs_merged_30d12
first_time_prs_decided_30d12
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
15.8/25Owner reach — 157 followers of wasm-bindgen
9.1/25Track record — 7 public repos, account ~1 yr old
Inputs used
followers157
owner_typeOrganization
is_verifiedno
owner_loginwasm-bindgen
public_repos7
account_age_days468

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on crates
35/35Publish recency — latest publish 25 days ago
20/20Version history — 129 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packageswasm-bindgen
ecosystemscrates
any_deprecatedno
min_days_since_publish25

Engineering Quality

Are baseline engineering and documentation practices in place?

86Excellent · 19% of overall
How it's scored
24/24CI workflows — 5 workflow(s)
24/24Tests present
16/16Linter config — Cargo.toml ([lints], [workspace.lints]), clippy.toml
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

90Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://wasm-bindgen.github.io/wasm-bindgen/
10/10Repository description
10/10Topics — 5 topics
0/10Wiki
Inputs used
topicswasm, javascript, rust, binding-generator, rust-wasm
has_wikino
homepagehttps://wasm-bindgen.github.io/wasm-bindgen/
docs_sitehttps://wasm-bindgen.github.io/wasm-bindgen/
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

63Moderate · 16% of overall
How it's scored
5.2/7.5Binary-Artifacts — binaries present in source code
6/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 63 contributing companies or organizations
0/10Dangerous-Workflow — dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — Project has not signed or included provenance with any releases.
7.5/7.5Token-Permissions — GitHub workflow tokens follow principle of least privilege
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate5.6
Excluded from scoring (no data or not applicable): Packaging. Remaining weights renormalized.
How it's scored
26.6/35Direct dependencies free of known advisories — 1 affected: paste 1.0.15 (unknown)
25/25Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
37.2/40No advisories left outstanding — 1 advisory-carrying package(s) unaddressed past 90 days; oldest published 743 days ago
Inputs used
sourceosv
advisories1
affected_packages1
assessed_packages21
unassessed_packages0
affected_by_severityunknown 1
direct_affected_packages1
Matched the crates:wasm-bindgen@0.2.129 runtime dependency closure — what installing the published package pulls in — 21 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

71Good · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 83 of 99 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.838
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
18/18One-command bootstrap — justfile
22/22Automated tests
11/11Lint / format config — Cargo.toml ([lints], [workspace.lints]), clippy.toml
11/11Static type checking — crates/typescript-tests/tsconfig.json
0/10Reproducible environment
2/10Demonstrated agent practice — 1 of the last 100 commits agent-authored or agent-credited
8/8Automated maintenance — 1 of the last 100 commits are automated dependency updates
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileno
typed_languageyes
bootstrap_filesjustfile
has_devcontainerno
has_linter_configyes
typecheck_configscrates/typescript-tests/tsconfig.json
agent_commit_share0.01
toolchain_manifestsCargo.toml, benchmarks/Cargo.toml, benchmarks/wcodspeed/Cargo.toml, crates/cli-support/Cargo.toml, crates/cli/Cargo.toml, crates/cli/tests/reference/crates/private-dedupe-a/Cargo.toml, crates/cli/tests/reference/crates/private-dedupe-b/Cargo.toml, crates/futures/Cargo.toml, crates/js-sys/Cargo.toml, crates/macro-support/Cargo.toml, crates/macro/Cargo.toml, crates/msrv/cli/Cargo.toml, crates/msrv/lib/Cargo.toml, crates/msrv/resolver/Cargo.toml, crates/shared/Cargo.toml, crates/test-macro/Cargo.toml, crates/test-shared/Cargo.toml, crates/test/Cargo.toml, crates/test/sample/Cargo.toml, crates/typescript-tests/Cargo.toml, crates/web-sys/Cargo.toml, crates/webidl-tests/Cargo.toml, crates/webidl/Cargo.toml, examples/add/Cargo.toml, examples/canvas/Cargo.toml, examples/char/Cargo.toml, examples/closures/Cargo.toml, examples/console_log/Cargo.toml, examples/dom/Cargo.toml, examples/duck-typed-interfaces/Cargo.toml, examples/explicit-resource-management/Cargo.toml, examples/fetch/Cargo.toml, examples/guide-supported-types-examples/Cargo.toml, examples/hello_world/Cargo.toml, examples/import_js/crate/Cargo.toml, examples/jspi-fetch-streams/Cargo.toml, examples/jspi-opfs/Cargo.toml, examples/jspi/Cargo.toml, examples/julia_set/Cargo.toml, examples/nodejs-threads/Cargo.toml, examples/nodejs_and_deno/Cargo.toml, examples/paint/Cargo.toml, examples/performance/Cargo.toml, examples/raytrace-parallel/Cargo.toml, examples/request-animation-frame/Cargo.toml, examples/synchronous-instantiation/Cargo.toml, examples/todomvc/Cargo.toml, examples/wasm-audio-worklet/Cargo.toml, examples/wasm-in-wasm-imports/Cargo.toml, examples/wasm-in-wasm/Cargo.toml, examples/wasm-in-web-worker/Cargo.toml, examples/weather_report/Cargo.toml, examples/webaudio/Cargo.toml, examples/webgl/Cargo.toml, examples/webrtc_datachannel/Cargo.toml, examples/websockets/Cargo.toml, examples/webxr/Cargo.toml, examples/without-a-bundler-no-modules/Cargo.toml, examples/without-a-bundler/Cargo.toml, tests/crates/a/Cargo.toml, tests/crates/b/Cargo.toml, tests/no-std/Cargo.toml
dependency_bot_commit_share0.01
How it's scored
45/45Type-checkable code — Rust (statically typed)
54.5/55Manageable file sizes — 29/2,920 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes650,326
source_files_sampled2,920
oversized_source_files29
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — examples, sample
Inputs used
example_dirsexamples, sample
has_mcp_signalno
api_schema_files—
interfaces_expected_of—
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

Key facts

9,196GitHub stars
98contributors
402commits, last 12 months
0days since last push
100releases
2bus factor
465open issues
crates.io, npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • First-time contributor figures cover 12 of 18 authors (cap 12)

More detail

Star and fork history 0 ★ / 1,257 ⇿
0Stars
1,257Forks
79Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Only the most recent history is shown — this repository exceeds the collection window, so the earliest history is not captured.

2004006008001,0001,2001,4001,257102019-082023-032026-10
Major 0Minor 0Patch 79

Each point covers 7 days.

OpenSSF Scorecard 5.6 / 10
5.6aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-10-20 21:57 UTC

7Binary-Artifactsbinaries present in source code
8Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
10Code-Reviewall changesets reviewed
10Contributorsproject has 63 contributing companies or organizations
0Dangerous-Workflowdangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
10Token-PermissionsGitHub workflow tokens follow principle of least privilege
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 5
RegistryPackageVersion constraintManifest
crates.iocfg-if1.0.0Cargo.toml
crates.ioserde1.0Cargo.toml
crates.ioserde_json1.0Cargo.toml
crates.iowasm-bindgen-macro=0.2.129Cargo.toml
crates.iowasm-bindgen-shared=0.2.129Cargo.toml
All dependencies 103

Full resolved dependency set from the GitHub dependency graph: 5 direct and 98 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.iocfg-if—direct
crates.ioserde—direct
crates.ioserde_json—direct
crates.iowasm-bindgen-macro0.2.129direct
crates.iowasm-bindgen-shared0.2.129direct
crates.ioanyhow—indirect
crates.ioaskama—indirect
crates.ioassert_cmd—indirect
crates.iobase64—indirect
crates.iobumpalo—indirect
crates.iobumpalo3.12.0indirect
crates.iocast—indirect
crates.iochrono—indirect
crates.ioclap—indirect
crates.ioconsole_error_panic_hook—indirect
crates.ioconsole_log—indirect
crates.ioenv_logger—indirect
crates.iofutures—indirect
crates.iofutures-channel—indirect
crates.iofutures-channel-preview—indirect
crates.iofutures-core—indirect
crates.iofutures-lite—indirect
crates.iofutures-util—indirect
crates.iogg-alloc—indirect
crates.iogloo—indirect
crates.iohalf—indirect
crates.ioheck—indirect
crates.iohumantime—indirect
crates.ioicu_collections2.2.0indirect
crates.ioicu_locale_core2.2.0indirect
crates.ioicu_normalizer2.2.0indirect
crates.ioicu_normalizer_data2.2.0indirect
crates.ioicu_properties2.2.0indirect
crates.ioicu_properties_data2.2.0indirect
crates.ioicu_provider2.2.0indirect
crates.iojs-sys0.3.106indirect
crates.iojson—indirect
crates.iolazy_static—indirect
crates.ioleb128—indirect
crates.iolibm—indirect
crates.iolog—indirect
crates.iolog0.4.18indirect
crates.iominicov0.3.8indirect
crates.ionative-tls—indirect
crates.ionu-ansi-term—indirect
crates.ionum-traits—indirect
crates.iooorandom—indirect
crates.iopaste—indirect
crates.iopredicates—indirect
crates.iopretty_assertions—indirect
crates.ioproc-macro2—indirect
crates.ioproc-macro21.0.101indirect
crates.ioquote—indirect
crates.ioquote1.0.40indirect
crates.iorayon—indirect
crates.iorayon-core—indirect
crates.ioregex—indirect
crates.ioreqwest—indirect
crates.iorouille—indirect
crates.iorstest—indirect
crates.iorustc-demangle—indirect
crates.iorustversion—indirect
crates.ioserde-wasm-bindgen—indirect
crates.ioserde_derive—indirect
crates.ioshlex—indirect
crates.iosourcefile—indirect
crates.iostatrs—indirect
crates.iosyn—indirect
crates.iotempfile—indirect
crates.iotime0.3.45indirect
crates.iotokio—indirect
crates.iotrybuild—indirect
crates.iounicode-ident—indirect
crates.ioureq—indirect
crates.iowalrus—indirect
crates.iowasm-bindgen0.2.129indirect
crates.iowasm-bindgen-cli-support0.2.129indirect
crates.iowasm-bindgen-futures0.4.79indirect
crates.iowasm-bindgen-macro-support0.2.129indirect
crates.iowasm-bindgen-test-macro0.3.79indirect
crates.iowasm-bindgen-test-shared0.2.129indirect
crates.iowasmparser—indirect
crates.iowasmprinter—indirect
crates.iowast—indirect
crates.iowat—indirect
crates.ioweedle—indirect
crates.ioyoke-derive0.8.2indirect
npm@playwright/test^1.55.0indirect
npm@types/jest^29.5.8indirect
npm@types/node^24.3.0indirect
npm@wasm-tool/wasm-pack-plugincatalog:indirect
npmcargo-cp-artifact^0.1.9indirect
npmcopy-webpack-plugincatalog:indirect
npmcross-envcatalog:indirect
npmcss-loadercatalog:indirect
npmhtml-webpack-plugincatalog:indirect
npmmini-css-extract-plugincatalog:indirect
npmserve^14.2.4indirect
npmts-jest29.2.0indirect
npmtypescript^5.2.2indirect
npmwebpackcatalog:indirect
npmwebpack-clicatalog:indirect
npmwebpack-dev-servercatalog:indirect
Dependency advisories 1

Installing crates:wasm-bindgen@0.2.129 pulls in 21 packages, direct and transitive: 1 carry known advisories, of which 1 are direct dependencies.

PackageVersionRelationSeverityAdvisoriesFixed in
paste1.0.15directunknown1—

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

The message is kept through sign-in.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — crates.io.