# cogentcore/core

A free and open source framework for building powerful, fast, elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and web with a single Go codebase, allowing you to Code Once, Run Everywhere.

Repository: https://github.com/cogentcore/core
Canonical: https://ross.abutalabs.com/products/cogentcore-core
Homepage: http://cogentcore.org/core
Language: Go
License: BSD-3-Clause
License Family: permissive
Topics: go, golang, gui, graphics, android, cross-platform, ios, linux, macos, web, windows, apps, toolkit, webgpu, framework
Last push: 2026-08-12T17:43:29+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 3043, "days_push": 21, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2348, forks 102 (observed 2026-08-28T04:06:40.116137+00:00)

## What it is
Cogent Core is a free, open-source Go framework for building fast, elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and the web from a single codebase. It provides a widget-based GUI toolkit with WebGPU/Vulkan-backed rendering and compiles to WebAssembly for web deployment.

## Use cases
- build cross-platform desktop apps in go
- write a gui app that runs on mobile and desktop with one codebase
- compile a go gui app to the web with wasm
- build 3d graphics applications in go
- create native ios and android apps from go
- make a cross-platform 2d app with a widget toolkit

## When to choose
- you want a single Go codebase targeting desktop, mobile, and web
- you need GPU-accelerated 2D/3D rendering via WebGPU/Vulkan
- you prefer a widget-based toolkit with interactive documentation

## When to avoid
- you need a mature ecosystem with a large widget and third-party library selection
- your team does not use Go
- you need pixel-perfect native platform UI conventions on each OS

## Facets
- artifact type: framework
- maturity: active
- function: gui, graphics, mobile-framework, ui-components, cli
- domain: cross-platform, web-development, graphics, developer-tools
- platform: go, windows, wasm, cross-platform
- tags: 2d-3d-graphics, webgpu, vulkan, code-once-run-everywhere, widget-toolkit, single-codebase, macos, linux, android, ios

## Member repositories
- cogentcore/core (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:40.116137+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 2026-08-30T02:36:59.013027+00:00, confidence not recorded.
  - readme: https://github.com/cogentcore/core (fetched 2026-08-28T04:06:40.116137+00:00, sha a79ad781ac57)
  - homepage: http://cogentcore.org/core (fetched 2026-08-29T10:17:32.243103+00:00, sha f2ad62b2c67b)
  - site_page: https://cogentcore.org/core/install (fetched 2026-08-29T10:17:32.247731+00:00, sha 0b599998ec8c)
- Data as of 2026-08-30T08:39:29.467469+00:00.