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nlohmann/json
JSON for Modern C++
MITSep 16, 2026 · metrics 2.10.0
All tags
Catalogue tag
#header-only
Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.
26 records
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CrowCpp/Crow
A Fast and Easy to use microframework for the web.
Custom licenseAug 28, 2026 · metrics 2.10.0
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yhirose/cpp-httplib
A C++ header-only HTTP/HTTPS server and client library
MITSep 16, 2026 · metrics 2.10.0
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stephenberry/glaze
Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF
MITSep 13, 2026 · metrics 2.10.0
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skypjack/entt
Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
MITOct 20, 2026 · metrics 2.10.0
PyPI
fktn-k/fkYAML
A C++ header-only YAML library
MITSep 17, 2026 · metrics 2.10.0
crates.io
yhirose/cpp-peglib
A single file C++ header-only PEG (Parsing Expression Grammars) library
MITSep 14, 2026 · metrics 2.10.0
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martinus/svector
Compact SVO optimized vector for C++17 or higher
MITSep 19, 2026 · metrics 2.10.0
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Neargye/magic_enum
Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
MITAug 28, 2026 · metrics 2.10.0
PyPI
RECHE23/real-regex
Linear-time, ReDoS-safe C++20 header-only regex engine with bounded lookarounds + an re-compatible Python binding
MITOct 20, 2026 · metrics 2.10.0
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StratCraftsAI/NexusFix
A zero-alloc, compile-time hardened FIX engine built for sub-100ns execution.
MITSep 9, 2026 · metrics 2.10.0
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tristanpenman/valijson
Header-only C++ library for JSON Schema validation, with support for many popular parsers
BSD-2-ClauseSep 12, 2026 · metrics 2.10.0
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keithpotz/CrashCatch
Cross-Platform, Efficient easy to integrate crash reporting library for modern C++
MITSep 20, 2026 · metrics 2.10.0
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gulrak/filesystem
An implementation of C++17 std::filesystem for C++11 /C++14/C++17/C++20 on Windows, macOS, Linux and FreeBSD.
MITSep 14, 2026 · metrics 2.10.0
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eyalz800/zpp_bits
A lightweight C++20 serialization and RPC library
MITSep 11, 2026 · metrics 2.10.0
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SSARCandy/ini-cpp
📑 Yet another ini config parser for modern C++
Custom licenseSep 16, 2026 · metrics 2.10.0
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ShashwatAgrawal20/tec.h
A tiny, header-only, zero-setup unit testing library for C & C++. No complex build system integration required, just #include and write tests.
MITSep 18, 2026 · metrics 2.10.0
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Tessil/ordered-map
C++ hash map and hash set which preserve the order of insertion
MITOct 1, 2026 · metrics 2.10.0
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wqking/eventpp
Event Dispatcher and callback list for C++
Custom licenseSep 12, 2026 · metrics 2.10.0
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vthiery/cpp-statsd-client
A header-only StatsD client implemented in C++
MITSep 5, 2026 · metrics 2.10.0
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nonstd-lite/byte-lite
byte lite - A C++17-like byte type for C++98, C++11 and later in a single-file header-only library
BSL-1.0Sep 19, 2026 · metrics 2.10.0
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contour-terminal/boxed-cpp
Boxing primitive types in C++
Apache-2.0Sep 14, 2026 · metrics 2.10.0
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mmahnic/argumentum
C++ command line parsing library
MPL-2.0Sep 13, 2026 · metrics 2.10.0
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p-ranav/iris
Lightweight Component Model and Messaging Framework based on ØMQ
MITSep 18, 2026 · metrics 2.10.0
RubyGems
banditcpp/bandit
Human-friendly unit testing for C++11
Custom licenseSep 11, 2026 · metrics 2.10.0
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peter-winter/ctpg
Compile Time Parser Generator is a C++ single header library which takes a language description as a C++ code and turns it into a LR1 table parser with a deterministic finite automaton lexical analyzer, all in compile time.
MITSep 11, 2026 · metrics 2.10.0