Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-27 17:32 UTC

showdownjs / showdown

A bidirectional Markdown to HTML to Markdown converter written in Javascript

JavaScript · HTMLMIT★ 14,869 stars⑂ 1,566 forkssince Nov 2008View on GitHub ↗
KindCommand-line toolLibraryhow this is determined

showdownjs/showdown holds a health index of 86 out of 100, placing it in the Excellent band. It scores highest on Engineering Quality (93/100) and lowest on AI Readiness (53/100). It was last updated 2 days ago. A single contributor accounts for most of its recent work.

86
overall / 100
Excellent

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.

86
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 72 is calibrated to 86 on the published index scale (record calibration 2026-08-02).

Ownership

ShowdownJSOrganization
33 followers14 public repossince Nov 2012

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npmshowdown2.1.06,038,101621589 days agomarkdownconverter

Metrics by category

Vitality

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

59Moderate · 21% of overall
How it's scored
36/36Push recencylast push 2 days ago
7.6/36Commit cadence11/52 weeks with commits
18/18Commit volume241 commits in the last year
10/10OpenSSF Scorecard: Maintained30 commit(s) and 8 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year241
human_commit_share1
days_since_last_push2
active_weeks_last_year11
How it's scored
27/27Ships releases54 releases published
0/36Release recencylatest release 1,589 days ago
12.6/27Release cadencea release every ~176.8 days
0/10OpenSSF Scorecard: Signed-ReleasesProject has not signed or included provenance with any releases.
Inputs used
releases_count54
latest_release_tag2.1.0
releases_from_tagsno
days_since_latest_release1,589
mean_days_between_releases176.8

Community & Adoption

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

89Excellent · 17% of overall
How it's scored
60/60Stars14,869 stars
25/25Forks1,566 forks
12.6/15Watchers184 watchers
Inputs used
forks1,566
stars14,869
watchers184
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5Licenserecognized license (MIT)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges5
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesbadge.fury.io, github.com, shields.io
has_pull_request_templateno
How it's scored
80/80Monthly downloads6,038,101 downloads/month across npm
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagesshowdown
dependents
ecosystemsnpm
total_downloads
monthly_downloads6,038,101
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?

53Moderate · 23% of overall
How it's scored
9/54Bus factor1 contributor(s) cover half of all commits
4/22.5Commit distributiontop contributor authored 82% of commits
13.5/13.5Contributor breadth74 contributors
10/10OpenSSF Scorecard: Contributorsproject has 4 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled74
top_contributor_share0.822
How it's scored
29.8/42Issue resolution71% of issues closed
13.6/30PR acceptance143/315 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-ReviewFound 0/30 approved changesets -- score normalized to 0
Inputs used
merged_prs143
open_issues217
closed_issues530
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.71
closed_unmerged_prs172
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backingorganization-owned
0/20Verified domain
11/25Owner reach33 followers of showdownjs
20.6/25Track record14 public repos, account ~13 yr old
Inputs used
followers33
owner_typeOrganization
is_verifiedno
owner_loginshowdownjs
public_repos14
account_age_days5,039
How it's scored
25/25Published & resolvable1 package(s) on npm
4/35Publish recencylatest publish 1,589 days ago
20/20Version history62 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packagesshowdown
ecosystemsnpm
any_deprecatedno
min_days_since_publish1,589

Engineering Quality

Are baseline engineering and documentation practices in place?

93Exceptional · 19% of overall
How it's scored
24/24CI workflows6 workflow(s)
24/24Tests present
16/16Linter configeslint.config.mjs
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Testsno data
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configyes
has_precommit_configno
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.

Documentation

100Exceptional
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage sitehttp://showdownjs.com/
10/10Repository description
10/10Topics9 topics
10/10Wiki
Inputs used
topicsshowdown, javascript, markdown, markdown-parser, markdown-flavors, gfm, html, converter, html-converter
has_wikiyes
homepage
docs_sitehttp://showdownjs.com/
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

79Good · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
0/7.5Branch-Protectionno data
0/2.5CI-Testsno data
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0/7.5Code-ReviewFound 0/30 approved changesets -- score normalized to 0
2.5/2.5Contributorsproject has 4 contributing companies or organizations
10/10Dangerous-Workflowno dangerous workflow patterns detected
7.5/7.5Dependency-Update-Toolupdate tool detected
0/5Fuzzingproject is not fuzzed
2.5/2.5Licenselicense file detected
7.5/7.5Maintained30 commit(s) and 8 issue activity found in the last 90 days -- score normalized to 10
0/5Packagingno data
5/5Pinned-Dependenciesall dependencies are pinned
5/5SASTSAST tool detected: CodeQL
5/5Security-Policysecurity policy file detected
0/7.5Signed-ReleasesProject has not signed or included provenance with any releases.
6.8/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated15
scorecard_versionv5.5.0
checks_inconclusive3
scorecard_aggregate7.4
Excluded from scoring (no data or not applicable): Branch-Protection, CI-Tests, Packaging. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisoriesno direct dependency carries a known advisory
25/25Indirect dependencies free of known advisoriesno indirect dependency carries a known advisory
0/40No advisories left outstandingno advisory carries a publication date
Inputs used
sourceosv
advisories0
affected_packages0
assessed_packages1
unassessed_packages0
affected_by_severitynone
direct_affected_packages0
Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the npm:showdown@2.1.0 runtime dependency closure — what installing the published package pulls in — 1 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.

53Moderate · 4% of overall
How it's scored
0/45Agent instructionsno CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history88 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share0.88
agent_instruction_files
agent_instruction_max_bytes
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format configeslint.config.mjs
0/11Static type checking
10/10Reproducible environmentlockfile
4/10Demonstrated agent practice2 of the last 100 commits agent-authored or agent-credited
5/8Automated maintenancedependency automation configured, none observed in the sampled commits
10/10OpenSSF Scorecard: Pinned-Dependenciesall dependencies are pinned
Inputs used
has_nixno
has_testsyes
lockfilespackage-lock.json
has_dockerfileno
typed_languageno
bootstrap_files
has_devcontainerno
has_linter_configyes
typecheck_configs
agent_commit_share0.02
toolchain_manifests
dependency_bot_commit_share0
How it's scored
0/45Type-checkable codeJavaScript without a type-check config
54.1/55Manageable file sizes2/121 source files over 60KB
Inputs used
primary_languageJavaScript
largest_source_bytes71,464
source_files_sampled121
oversized_source_files2

Key facts

14,869GitHub stars
74contributors
241commits, last 12 months
2days since last push
54releases
1bus factor
217open issues
npm, PyPIpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 1,566 ⇿
0Stars
1,566Forks
34Releases

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.

4006008001,0001,2001,4001,6001,566102016-082021-082026-08
Major 1Minor 6Patch 26

Each point covers 10 days.

OpenSSF Scorecard 7.4 / 10
7.4aggregate

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 · 2026-08-27 17:32 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
n/aCI-Testsno pull request found
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 0/30 approved changesets -- score normalized to 0
10Contributorsproject has 4 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 8 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
10Pinned-Dependenciesall dependencies are pinned
10SASTSAST tool detected: CodeQL
10Security-Policysecurity policy file detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
9Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 2
RegistryPackageVersion constraintManifest
npmcommander^14.0.0package.json
npmhappy-dom^20.10.6package.json
All dependencies 692

Full resolved dependency set from the GitHub dependency graph: 2 direct and 690 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
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npmminimatch10.2.6indirect
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npmnetmask2.1.1indirect
npmnode-domexception1.0.0indirect
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npmnormalize-path3.0.0indirect
npmnormalize-url6.1.0indirect
npmnormalize-url8.1.1indirect
npmnpm-run-path4.0.1indirect
npmnth-check2.1.1indirect
npmoauth4webapi3.8.7indirect
npmobject-hash3.0.0indirect
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npmopenid-client6.8.6indirect
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npmpicocolors1.1.1indirect
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npmprocess0.11.10indirect
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npmproper-lockfile4.1.2indirect
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npmprotoc-gen-ts0.8.7indirect
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npmquick-lru5.1.1indirect
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npmreadable-stream2.3.8indirect
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npmreconnecting-websocket4.4.0indirect
npmregistry-auth-token5.1.1indirect
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npmrequire-directory2.1.1indirect
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npmresolve-alpn1.2.1indirect
npmresponselike2.0.1indirect
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npmrfc46481.5.4indirect
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npmsemver5.7.2indirect
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npmsimple-git3.36.0indirect
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npmstream-buffers3.0.3indirect
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npmstrip-ansi6.0.1indirect
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npmstrip-final-newline2.0.0indirect
npmstrip-json-comments2.0.1indirect
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npmtar-fs3.1.3indirect
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npmteeny-request10.1.4indirect
npmteex1.0.1indirect
npmtext-decoder1.2.7indirect
npmtext-hex1.0.0indirect
npmtinybench2.9.0indirect
npmtinyexec1.3.0indirect
npmtinyglobby0.2.17indirect
npmtinyrainbow3.1.1indirect
npmtldts7.4.10indirect
npmtldts-core7.4.10indirect
npmtmp0.2.7indirect
npmtotalist3.0.1indirect
npmtough-cookie6.0.2indirect
npmtr460.0.3indirect
npmtr466.0.0indirect
npmtree-kill1.2.2indirect
npmtriple-beam1.4.1indirect
npmtslib2.8.1indirect
npmtype-check0.4.0indirect
npmtype-fest0.13.1indirect
npmtype-fest1.4.0indirect
npmtype-fest2.19.0indirect
npmtypedarray-to-buffer3.1.5indirect
npmundici-types7.18.2indirect
npmunique-string3.0.0indirect
npmupdate-notifier6.0.2indirect
npmuri-js4.4.1indirect
npmurl-template2.0.8indirect
npmutil-deprecate1.0.2indirect
npmuuid11.1.1indirect
npmvite8.2.1indirect
npmvitest4.1.11indirect
npmw3c-xmlserializer5.0.0indirect
npmwalk-up-path4.0.0indirect
npmweb-streams-polyfill3.3.3indirect
npmwebidl-conversions3.0.1indirect
npmwebidl-conversions8.0.1indirect
npmwhatwg-mimetype3.0.0indirect
npmwhatwg-mimetype4.0.0indirect
npmwhatwg-mimetype5.0.0indirect
npmwhatwg-url15.1.0indirect
npmwhatwg-url5.0.0indirect
npmwhich2.0.2indirect
npmwhy-is-node-running2.3.0indirect
npmwidest-line4.0.1indirect
npmwindows-release5.1.1indirect
npmwinston3.19.0indirect
npmwinston-transport4.9.0indirect
npmword-wrap1.2.5indirect
npmwrap-ansi7.0.0indirect
npmwrap-ansi8.1.0indirect
npmwrappy1.0.2indirect
npmwrite-file-atomic3.0.3indirect
npmws8.21.0indirect
npmws8.21.3indirect
npmxdg-basedir5.1.0indirect
npmxml-name-validator5.0.0indirect
npmxmlchars2.2.0indirect
npmy18n5.0.8indirect
npmyargs17.7.3indirect
npmyargs-parser21.1.1indirect
npmyauzl3.4.0indirect
npmyocto-queue0.1.0indirect
npmzip-stream6.0.1indirect
PyPImkdocs-materialindirect
Dependency advisories 0

Installing npm:showdown@2.1.0 pulls in 1 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.

No known advisories affect the assessed dependencies.

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 statisticsnpm.