opencontainers/image-spec
OCI Image Format observed · 2026-08-28
Health v2 · maintenance only
64/100
- Activity 91
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3816
- days_rel: 548
- days_push: 55
- n_releases_24m: 1
Adoption not part of the score
4453 stars · 885 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
The Open Container Initiative (OCI) Image Format Specification, defining the standard layout and metadata for container images including manifests, configurations, and filesystem layers. The repository also ships Go types, JSON Schema, and validation tooling for implementing the spec.
Use cases
- build container images that conform to the OCI image format
- validate OCI image manifests and blobs in Go
- implement a container registry or image builder compatible with Docker
- parse and manipulate OCI image manifests and configs programmatically
- package non-container artifacts like Helm charts or Wasm modules as OCI artifacts
- understand the standard container image format used by Docker and Kubernetes
When to choose
- you are building container tooling (builders, registries, runtimes) in Go and need spec-compliant types
- you need to validate or generate OCI image manifests, configs, or layers
- you want interoperability with Docker, Kubernetes, and other OCI-conformant tools
When to avoid
- you need a tool to actually build or run containers rather than implement the format
- you work in a language other than Go and only need the written specification
- you need the registry push/pull API - that is the separate distribution-spec project
Facets
library · maturity stable
container-runtime serialization developer-tools sdk cloud-computing developer-tools go cross-platform oci container-images specification image-format docker -schema standards containers devops linux
7 sources
- readme: https://github.com/opencontainers/image-spec · fetched 2026-08-28 · 5913269d29ff
- homepage: https://www.opencontainers.org/ · fetched 2026-08-29 · cede10152191
- site_page: https://opencontainers.org/about/overview · fetched 2026-08-29 · 4a3bc773c315
- site_page: https://opencontainers.org/about/tob · fetched 2026-08-29 · c919f71c4f62
- site_page: https://opencontainers.org/about/security-disclosure · fetched 2026-08-29 · e6b2016f31a1
- site_page: https://opencontainers.org/faq · fetched 2026-08-29 · bdc269126fc3
- site_page: https://opencontainers.org/posts/blog/2024-03-13-image-and-distribution-1-1 · fetched 2026-08-29 · a0490c1d9e9f
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| opencontainers/image-spec | main | 64 |
For agents
markdown · JSON · MCP: product_card(name="opencontainers/image-spec")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem