Unofficial libcurl development binaries
https://github.com/negrutiu/libcurl-devel
- libcurl Windows binaries for x86 and amd64 architectures
- OpenSSL and schannel as SSL backends
- Built-in support for HTTP/2
- Binaries built with Microsoft Visual Studio (Debug and Release configurations) and msys2/mingw
- Package contents:
- Configurations compatible with legacy Windows versions (e.g.
mingw-openssl-Release-Win32-Legacyworks well in Win NT4+) - Static and shared libraries for
libcurl,openssl,nghttp2,zlib - Debugging files (
*.pdb) - Test tools (
curl.exe,openssl.exe)
- Configurations compatible with legacy Windows versions (e.g.
| Configuration | Comments |
|---|---|
| mingw-curl_openssl-Release-Win32 | Built with mingw. Static libraries. OpenSSL backend |
| mingw-curl_openssl-Release-Win32-HTTP_ONLY | HTTP protocol only |
| mingw-curl_openssl-Release-Win32-Legacy | HTTP protocol only. Backward compatible with legacy Windows versions (NT4+) |
| mingw-curl_openssl-Release-Win32-Shared | Built with mingw. Shared libraries. OpenSSL backend |
| mingw-curl_openssl-Release-x64 | |
| mingw-curl_openssl-Release-x64-HTTP_ONLY | |
| mingw-curl_openssl-Release-x64-Legacy | HTTP protocol only. Backward compatible with legacy Windows versions (XP64+) |
| mingw-curl_openssl-Release-x64-Shared | |
| mingw-curl_schannel-Release-Win32 | Built with mingw. Static libraries. schannel (aka WinSSL) backend |
| mingw-curl_schannel-Release-Win32-HTTP_ONLY | |
| mingw-curl_schannel-Release-Win32-Shared | |
| mingw-curl_schannel-Release-x64 | |
| mingw-curl_schannel-Release-x64-HTTP_ONLY | |
| mingw-curl_schannel-Release-x64-Shared | |
| MSVC-curl_openssl-Debug-Win32 | Built with Microsoft Visual Studio |
| MSVC-curl_openssl-Debug-Win32-HTTP_ONLY | |
| MSVC-curl_openssl-Debug-Win32-Shared | |
| MSVC-curl_openssl-Debug-x64 | |
| MSVC-curl_openssl-Debug-x64-HTTP_ONLY | |
| MSVC-curl_openssl-Debug-x64-Shared | |
| MSVC-curl_openssl-Release-Win32 | |
| MSVC-curl_openssl-Release-Win32-HTTP_ONLY | |
| MSVC-curl_openssl-Release-Win32-Shared | |
| MSVC-curl_openssl-Release-x64 | |
| MSVC-curl_openssl-Release-x64-HTTP_ONLY | |
| MSVC-curl_openssl-Release-x64-Shared | |
| MSVC-curl_schannel-Debug-Win32 | |
| MSVC-curl_schannel-Debug-Win32-HTTP_ONLY | |
| MSVC-curl_schannel-Debug-Win32-Shared | |
| MSVC-curl_schannel-Debug-x64 | |
| MSVC-curl_schannel-Debug-x64-HTTP_ONLY | |
| MSVC-curl_schannel-Debug-x64-Shared | |
| MSVC-curl_schannel-Release-Win32 | |
| MSVC-curl_schannel-Release-Win32-HTTP_ONLY | |
| MSVC-curl_schannel-Release-Win32-Shared | |
| MSVC-curl_schannel-Release-x64 | |
| MSVC-curl_schannel-Release-x64-HTTP_ONLY | |
| MSVC-curl_schannel-Release-x64-Shared |
| Parameter | Comments |
|---|---|
| File sizes | schannel is a Windows native engine, OpenSSL is a 3rd party engine.Binaries built on top of schannel are smaller. |
| Certificate store | schannel uses the system certificate store (run certmgr.msc to view it) whereas OpenSSL requires cacert.pem alongside your binaries, which adds another 200-300KB to your package...Although schannel sounds better, older Windows versions (XP, Vista, Win7) stop receiving certificate store updates, so they quickly become unable to connect to modern HTTPS servers.If your binaries are required to support older Windows versions, OpenSSL is your only choice here. |
| Protocols & Ciphers | schannel has different capabilities depending on the Windows version (e.g. XP only supports TLS 1.0) (See this blog).3rd party software can interfere with schannel (See this article).OpenSSL supports all modern encryption including TLS1.3, HTTP/2, etc. |
| Project | License |
|---|---|
| This project itself | 0BSD |
| libcurl | MIT/X inspired |
| OpenSSL | Dual License |
| nghttp2 | MIT |
| zlib | zlib |