# copperspice/copperspice

Set of cross platform C++ libraries (Core, Gui, Network, Multimedia, SQL, Vulkan, etc)

Repository: https://github.com/copperspice/copperspice
Canonical: https://ross.abutalabs.com/products/copperspice
Homepage: http://www.copperspice.com
Language: C++
License Family: other
Topics: gui, cpp, core-functionality, libraries, networking, open-source
Last push: 2026-07-18T12:45:23+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 36, longevity 100
- inputs: {"age_days": 4163, "days_push": 46, "days_rel": 218, "gap_med": 244.5, "n_releases_24m": 3}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1324, forks 135 (observed 2026-08-28T04:04:22.276093+00:00)

## What it is
CopperSpice is a set of cross-platform C++ libraries (Core, Gui, Network, Multimedia, SQL, OpenGL, Vulkan, WebKit, XML, and more) derived from Qt and rewritten with modern C++20, including template-based reflection that removes the need for a meta-object compiler. It is LGPL-licensed and designed to be linked into any standard C++ application built with CMake.

## Use cases
- build cross-platform desktop GUI applications in C++
- find a modern open-source alternative to Qt for C++
- add networking, SQL, or multimedia to a C++ app without Qt licensing
- use C++20 reflection-based signals and slots instead of moc
- develop widgets-based desktop apps with CMake and Ninja
- render SVG, OpenGL, or Vulkan content in a C++ application

## When to choose
- you want a Qt-derived GUI library with no proprietary licensing constraints
- your codebase targets C++20 and you prefer template-based metadata over moc code generation
- you need a modular set of libraries (core, gui, network, multimedia, sql) you can link selectively
- you build with CMake and want prebuilt binaries or source builds across Linux, macOS, and Windows

## When to avoid
- you need the full Qt ecosystem, Qt Quick/QML, or Qt tooling like Qt Designer
- your project must support compilers older than C++20
- you rely on third-party Qt add-ons or the large Qt community and package ecosystem
- you need a permissive license - CopperSpice is LGPL v2.1

## Facets
- artifact type: library
- maturity: active
- function: ui-components, gui, networking, http-client, serialization, concurrency, cryptography, graphics, audio-processing, video-processing, database, json, date-time, file-system, templating
- domain: cross-platform, desktop-applications, web-development, graphics, developer-tools
- platform: windows, cpp, cross-platform
- tags: qt-alternative, c++20, cmake, lgpl, reflection, widgets, multimedia, sql, vulkan, opengl, webkit, svg, linux, macos, desktop

## Member repositories
- copperspice/copperspice (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:22.276093+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 2026-08-30T04:46:41.352925+00:00, confidence not recorded.
  - readme: https://github.com/copperspice/copperspice (fetched 2026-08-28T04:04:22.276093+00:00, sha 208bd13943a6)
  - homepage: http://www.copperspice.com (fetched 2026-08-29T12:05:43.527981+00:00, sha 724aaa9ec198)
  - site_page: https://www.copperspice.com/documentation.html (fetched 2026-08-29T12:05:43.537371+00:00, sha 765edbd397c3)
  - site_page: https://www.copperspice.com/about.html (fetched 2026-08-29T12:05:43.539110+00:00, sha 37e65547f9b6)
  - site_page: https://www.copperspice.com/docs/cs_overview/index.html (fetched 2026-08-29T12:05:43.540838+00:00, sha fbae791b5258)
- Data as of 2026-08-30T08:39:29.467469+00:00.