Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-13 19:52 UTC

tbraun96 / heic-rs

Pure-Rust HEIC/HEIF image decoder — no libheif, no C toolchain, no unsafe. Decodes iPhone and macOS HEIC photographs (grid tiles, 8/10-bit, 4:2:0/4:2:2/4:4:4) to RGB. no_std + WebAssembly ready, MIT OR Apache-2.0, and 4.28× faster than the AGPL alternative. A CertifiedCopy crate (certified.sh).

RustApache-2.0★ 4 stars⑂ 3 forkssince Sep 2026View on GitHub ↗
KindLibraryhow this is determined
#codec#decoder#h265#heic#heif#hevc#image#image-processing#no-std#pure-rust#rust#wasm#heic-decoder#image-decoder#iphone#libheif#no-unsafe#webassembly#certifiedcopy

tbraun96/heic-rs holds a health index of 67 out of 100, placing it in the Good band. It scores highest on Engineering Quality (76/100) and lowest on Sustainability & Governance (44/100). It was last updated 2 days ago. A single contributor accounts for most of its recent work.

67
overall / 100
Good

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.

67
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 61 is calibrated to 67 on the published index scale (record calibration 2026-08-02).

Ownership

Thomas BraunPersonal account
45 followers51 public repossince Apr 2018

This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.ioheic-rs0.1.411,33452 days agoimagedecoderheicheifhevcno-stdencodingwasm

Metrics by category

Vitality

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

68Good · 21% of overall

Development activity

54Moderate
How it's scored
36/36Push recency — last push 2 days ago
1.4/36Commit cadence — 2/52 weeks with commits
16.5/18Commit volume — 67 commits in the last year
0/10OpenSSF Scorecard: Maintained — project was created within the last 90 days. Please review its contents carefully
Inputs used
commits_last_year67
human_commit_share0.955
days_since_last_push2
active_weeks_last_year2

Release discipline

90Excellent
How it's scored
27/27Ships releases — 5 releases published
36/36Release recency — latest release 2 days ago
27/27Release cadence — a release every ~7.4 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count5
latest_release_tagv0.1.4
releases_from_tagsno
days_since_latest_release2
mean_days_between_releases7.4

Community & Adoption

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

53Moderate · 17% of overall

Popularity & adoption

10Critical
How it's scored
7.7/60Stars — 4 stars
2.5/25Forks — 3 forks
0/15Watchers — 0 watchers
Inputs used
forks3
stars4
watchers0
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

92Excellent
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
18/18CONTRIBUTING guide
13.5/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges6
has_contributingyes
has_issue_templateno
has_code_of_conductyes
readme_badge_servicesshields.io
has_pull_request_templateyes

Ecosystem adoption (downloads)

68Good
How it's scored
54.1/80Monthly downloads — 11,334 downloads/month across crates
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesheic-rs
dependents—
ecosystemscrates
total_downloads34,003
monthly_downloads11,334
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?

44Weak · 23% of overall

Maintainer resilience (bus factor)

10Critical
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
0/22.5Commit distribution — top contributor authored 100% of commits
1.4/13.5Contributor breadth — 1 contributors
0/10OpenSSF Scorecard: Contributors — project has 0 contributing companies or organizations -- score normalized to 0
Inputs used
bus_factor1
contributors_sampled1
top_contributor_share1

Issue & PR responsiveness

26At Risk
How it's scored
0/42Issue resolution — 0% of issues closed
22.5/30PR acceptance — 3/4 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 0/27 approved changesets -- score normalized to 0
Inputs used
merged_prs3
open_issues2
closed_issues0
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0
closed_unmerged_prs1
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.

Ownership & stewardship

58Moderate
How it's scored
10/30Ownership backing — personal (user) account
0/20Verified domain — not applicable to user accounts
12/25Owner reach — 45 followers of tbraun96
24.5/25Track record — 51 public repos, account ~8 yr old
Inputs used
followers45
owner_typeUser
is_verified—
owner_logintbraun96
public_repos51
account_age_days3,114
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on crates
35/35Publish recency — latest publish 2 days ago
20/20Version history — 5 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesheic-rs
ecosystemscrates
any_deprecatedno
min_days_since_publish2

Engineering Quality

Are baseline engineering and documentation practices in place?

76Good · 19% of overall

Engineering practices

84Excellent
How it's scored
24/24CI workflows — 2 workflow(s)
24/24Tests present
16/16Linter config — rustfmt.toml
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 3 out of 3 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

65Good
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://certified.sh
10/10Repository description
10/10Topics — 19 topics
0/10Wiki
Inputs used
topicscodec, decoder, h265, heic, heif, hevc, image, image-processing, no-std, pure-rust, rust, wasm, heic-decoder, image-decoder, iphone, libheif, no-unsafe, webassembly, certifiedcopy
has_wikino
homepagehttps://certified.sh
docs_sitehttps://certified.sh
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

66Good · 16% of overall

Security posture

57Moderate
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
2.5/2.5CI-Tests — 3 out of 3 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
0/7.5Code-Review — Found 0/27 approved changesets -- score normalized to 0
0/2.5Contributors — project has 0 contributing companies or organizations -- score normalized to 0
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
5/5Fuzzing — project is fuzzed
2.5/2.5License — license file detected
0/7.5Maintained — project was created within the last 90 days. Please review its contents carefully
5/5Packaging — packaging workflow detected
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
5/5Security-Policy — security policy file 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_evaluated18
scorecard_versionv5.5.0
checks_inconclusive0
scorecard_aggregate5.7

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
25/25Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories0
affected_packages0
assessed_packages44
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 crates:heic-rs@0.1.4 runtime dependency closure — what installing the published package pulls in — 44 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.

76Good · 4% of overall

Agent context & guidance

55Moderate
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
15/15Machine-readable docs (llms.txt) — llms.txt present
40/40Legible commit history — 61 of 64 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_url—
legible_history_share0.953
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

75Good
How it's scored
12.6/18One-command bootstrap — Cargo.toml, fuzz/Cargo.toml (toolchain convention, no task runner)
22/22Automated tests
11/11Lint / format config — rustfmt.toml
11/11Static type checking — Rust (statically typed)
10/10Reproducible environment — lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 67
8/8Automated maintenance — 3 of the last 67 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
lockfilesCargo.lock
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configs—
agent_commit_share0
toolchain_manifestsCargo.toml, fuzz/Cargo.toml
dependency_bot_commit_share0.045

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — Rust (statically typed)
55/55Manageable file sizes — 0/127 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes9,581
source_files_sampled127
oversized_source_files0

Machine-readable interfaces

100Exceptional
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
Inputs used
example_dirsexamples
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

4GitHub stars
1contributors
67commits, last 12 months
2days since last push
5releases
1bus factor
2open issues
crates.iopackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 3 ⇿
0Stars
3Forks
3Releases

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.

12233312026-102026-102026-10
Major 0Minor 0Patch 3
OpenSSF Scorecard 5.7 / 10
5.7aggregate

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 · 2026-10-13 19:52 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
10CI-Tests3 out of 3 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 0/27 approved changesets -- score normalized to 0
0Contributorsproject has 0 contributing companies or organizations -- score normalized to 0
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
10Fuzzingproject is fuzzed
10Licenselicense file detected
0Maintainedproject was created within the last 90 days. Please review its contents carefully
10Packagingpackaging workflow detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file 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 1
RegistryPackageVersion constraintManifest
crates.iorayon1.10Cargo.toml
All dependencies 58

Full resolved dependency set from the GitHub dependency graph: 1 direct and 57 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.iorayon1.12.0direct
crates.ioaho-corasick1.1.5indirect
crates.ioanes0.1.6indirect
crates.ioanstyle1.0.14indirect
crates.ioarbitrary1.5.0indirect
crates.ioautocfg1.5.1indirect
crates.iocast0.3.0indirect
crates.iocc1.7.0indirect
crates.iocfg-if1.0.4indirect
crates.iocfg-if1.0.5indirect
crates.iociborium0.2.2indirect
crates.iociborium-io0.2.2indirect
crates.iociborium-ll0.2.2indirect
crates.ioclap4.6.6indirect
crates.ioclap_builder4.6.6indirect
crates.ioclap_lex1.1.0indirect
crates.iocriterion0.7.0indirect
crates.iocriterion-plot0.6.0indirect
crates.iocrossbeam-deque0.8.8indirect
crates.iocrossbeam-epoch0.9.21indirect
crates.iocrossbeam-utils0.8.23indirect
crates.iocrunchy0.2.4indirect
crates.ioeither1.18.0indirect
crates.iofind-msvc-tools0.1.14indirect
crates.iogetrandom0.4.3indirect
crates.iohalf2.7.1indirect
crates.ioitertools0.13.0indirect
crates.ioitoa1.0.18indirect
crates.iojobserver0.1.35indirect
crates.iolibc0.2.190indirect
crates.iolibfuzzer-sys0.4.13indirect
crates.iomemchr2.8.3indirect
crates.ionum-traits0.2.19indirect
crates.iooorandom11.1.5indirect
crates.ioproc-macro21.0.107indirect
crates.ioquote1.0.47indirect
crates.ior-efi6.0.0indirect
crates.iorayon-core1.13.0indirect
crates.ioregex1.13.1indirect
crates.ioregex-automata0.4.18indirect
crates.ioregex-syntax0.8.11indirect
crates.iosame-file1.0.6indirect
crates.ioserde1.0.229indirect
crates.ioserde_core1.0.229indirect
crates.ioserde_derive1.0.229indirect
crates.ioserde_json1.0.151indirect
crates.ioshlex2.0.1indirect
crates.iosyn2.0.119indirect
crates.iosyn3.0.5indirect
crates.iotinytemplate1.2.1indirect
crates.iounicode-ident1.0.24indirect
crates.iowalkdir2.5.0indirect
crates.iowinapi-util0.1.11indirect
crates.iowindows-link0.2.1indirect
crates.iowindows-sys0.61.2indirect
crates.iozerocopy0.8.57indirect
crates.iozerocopy-derive0.8.57indirect
crates.iozmij1.0.23indirect
Dependency advisories 0

Installing crates:heic-rs@0.1.4 pulls in 44 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

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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.