JSON that's part of C++
Formatting library as an alternative to C stdio and C++ iostreams
Language-independent stack for point-to-point RPC implementation
Kotlin multiplatform / multi-format serialization
Cross-platform SDK for creating and modifying PDF documents
JSON implementation for Ruby
LaTeX support for the IntelliJ platform by JetBrains
A static analyzer for Java, C, C++, and Objective-C
Explains and suggests fixes for compile-time errors for C, C++, C#, Go
the MiKTeX source code
No ceremony, just code. Blazing fast, typesafe binary serialization
Web Framework built on top of Qt, using the approach of Catalyst
Lighter, faster browser kernel of blink to integrate HTML UI in apps
An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
Extremely fast, in memory, JSON and interface library for modern C++
Google's data interchange format
An embedded web server
A library that can help you with generating PDF documents
An implementation of the TLS/SSL protocols
simplejson is a simple, fast, extensible JSON encoder/decoder
Lexbor is development of an open source HTML Renderer library
C++ Qt ORM (Object Relational Mapping) and ODM library
TreeFrog Framework, High-speed C++ MVC Framework for Web Applications
10x faster string search, split, sort, and shuffle for long strings
Bug-fix-only libev port of shadowsocks