# TianoCore EDK II

EDK II

Repository: https://github.com/tianocore/edk2
Canonical: https://ross.abutalabs.com/products/tianocore-edk-ii
Homepage: http://www.tianocore.org/tianocore-wiki.github.io/
Language: C
License: NOASSERTION
License Family: other
Topics: c, python, firmware, uefi
Last push: 2026-08-26T22:17:57+00:00
Link (homepage): http://www.tianocore.org/tianocore-wiki.github.io/

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 74, longevity 100
- inputs: {"age_days": 5620, "days_push": 7, "days_rel": 12, "gap_med": 90.5, "n_releases_24m": 9}
- flags: no_license, no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6214, forks 3246 (observed 2026-08-28T04:09:40.100740+00:00)

## What it is
EDK II is TianoCore's open-source, cross-platform firmware development environment implementing the UEFI and PI specifications. It provides the packages, libraries, and build tooling needed to develop platform firmware such as OVMF and other UEFI implementations.

## Use cases
- build custom UEFI firmware for a hardware platform
- compile OVMF virtual machine firmware
- develop UEFI drivers and applications
- experiment with UEFI features on real hardware
- implement a PI-compliant platform firmware

## When to choose
- you are developing UEFI or PI firmware for a platform
- you need an open-source reference implementation of UEFI
- you want to build OVMF or emulator firmware for testing

## When to avoid
- you need a simple bootloader rather than full UEFI firmware
- you are writing application-level software that only consumes UEFI services
- you need a turnkey BIOS product with vendor support

## Facets
- artifact type: framework
- maturity: active
- function: build-tool, developer-tools, embedded
- domain: embedded-systems, developer-tools, operating-systems
- platform: cross-platform, c, python
- tags: uefi, firmware, bios, edk-ii, tianocore, pi-specification, ovmf

## Member repositories
- tianocore/edk2 (main) score 90
- tianocore/tianocore.github.io (docs) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:40.100740+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:47:16.333414+00:00, confidence not recorded.
  - homepage: http://www.tianocore.org/tianocore-wiki.github.io/ (fetched 2026-08-29T08:43:35.810676+00:00, sha 0bb2d1a7efe1)
- Data as of 2026-08-30T08:39:29.467469+00:00.