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#header-only (30 Repositories)

Ranked open-source repositories tagged with #header-only, scored by pull request acceptance likelihood and maintainer engagement velocity.

Topic Avg Merge Rate

71.4%

Avg Review Latency

16.6h

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Rankings/rankings/cpp

30 repositories tagged #header-only

S TierC++ 153

fktn-k/fkYAML

A C++ header-only YAML library

83.0%
Merge Rate
<1h
First Review
100%
1st-Timers
4
Maintainers
A TierC++ 1.7k

martinus/nanobench

Simple, fast, accurate single-header microbenchmarking functionality for C++11/14/17/20

94.7%
Merge Rate
1h
First Review
100%
1st-Timers
2
Maintainers
A TierC++ 1.1k

nholthaus/units

a compile-time, header-only, dimensional analysis and unit conversion library built on c++14 with no dependencies.

86.4%
Merge Rate
9h
First Review
100%
1st-Timers
2
Maintainers
A TierC++ 428

alpaka-group/alpaka

Abstraction Library for Parallel Kernel Acceleration :llama:

61.9%
Merge Rate
5h
First Review
100%
1st-Timers
8
Maintainers
A TierC++ 449

aurora-opensource/au

A C++14-compatible physical units library with no dependencies and a single-file delivery option. Emphasis on safety, accessibility, performance, and developer experience.

80.6%
Merge Rate
-
First Review
100%
1st-Timers
5
Maintainers
A TierC++ 264

annihilatorq/omni

A modern, mostly zero-allocation C++23 library for working with low-level Windows within user-space. Iteration over loaded modules via PEB, EAT iteration, lazy imports, syscalls, and more.

88.2%
Merge Rate
5h
First Review
100%
1st-Timers
2
Maintainers
A TierC++ 120

martinus/svector

Compact SVO optimized vector for C++17 or higher

100.0%
Merge Rate
5h
First Review
100%
1st-Timers
0
Maintainers
A TierC++ 50.8k

nlohmann/json

JSON for Modern C++

57.8%
Merge Rate
-
First Review
55%
1st-Timers
40
Maintainers
A TierC++ 16.9k

yhirose/cpp-httplib

A C++ header-only HTTP/HTTPS server and client library

65.1%
Merge Rate
-
First Review
44%
1st-Timers
11
Maintainers
A TierC++ 5.0k

CrowCpp/Crow

A Fast and Easy to use microframework for the web.

51.7%
Merge Rate
20h
First Review
80%
1st-Timers
7
Maintainers
A TierC++ 3.1k

stephenberry/glaze

Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF

75.4%
Merge Rate
-
First Review
46%
1st-Timers
21
Maintainers
B TierC++ 479

boostorg/json

A C++11 library for parsing and serializing JSON to and from a DOM container in memory.

50.0%
Merge Rate
21h
First Review
50%
1st-Timers
6
Maintainers
B TierC++ 334

boostorg/histogram

Fast multi-dimensional generalized histogram with convenient interface for C++14

100.0%
Merge Rate
21h
First Review
100%
1st-Timers
1
Maintainers
B TierC++ 1.5k

artem-ogre/CDT

Constrained Delaunay Triangulation (C++)

90.0%
Merge Rate
-
First Review
100%
1st-Timers
1
Maintainers
B TierC++ 2.0k

pantor/inja

A Template Engine for Modern C++

80.0%
Merge Rate
2d
First Review
100%
1st-Timers
2
Maintainers
B TierC++ 29.7k

gabime/spdlog

Fast C++ logging library.

53.7%
Merge Rate
6d
First Review
43%
1st-Timers
7
Maintainers
B TierC++ 355

Neargye/semver

Semantic Versioning for modern C++

100.0%
Merge Rate
8h
First Review
0%
1st-Timers
1
Maintainers
B TierC++ 13.2k

skypjack/entt

Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

70.0%
Merge Rate
-
First Review
100%
1st-Timers
1
Maintainers
B TierC++ 1.9k

kfrlib/kfr

Fast, modern C++ DSP framework, FFT, Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, AVX-512, ARM NEON, RISC-V RVV)

100.0%
Merge Rate
3h
First Review
0%
1st-Timers
0
Maintainers
B TierC++ 6.8k

doctest/doctest

The fastest feature-rich C++11/14/17/20/23 single-header testing framework

33.3%
Merge Rate
24h
First Review
50%
1st-Timers
3
Maintainers
B TierC++ 149

ZXShady/enchantum

Faster enum reflection for C++17 since I don't want to wait for C++26 reflection.

100.0%
Merge Rate
2d
First Review
0%
1st-Timers
1
Maintainers
B TierC++ 988

gsl-lite/gsl-lite

ISO C++ Core Guidelines Library implementation for C++98, C++11 up

100.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
B TierC++ 680

taocpp/json

C++ header-only JSON library

100.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
B TierC++ 425

tristanpenman/valijson

Header-only C++ library for JSON Schema validation, with support for many popular parsers

100.0%
Merge Rate
5h
First Review
100%
1st-Timers
1
Maintainers
B TierC++ 1.1k

yhirose/cpp-peglib

A single file C++ header-only PEG (Parsing Expression Grammars) library

100.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
B TierC++ 2.2k

taocpp/PEGTL

Parsing Expression Grammar Template Library

33.3%
Merge Rate
<1h
First Review
0%
1st-Timers
1
Maintainers
B TierC++ 2.0k

nemtrif/utfcpp

UTF-8 with C++ in a Portable Way

66.7%
Merge Rate
3d
First Review
0%
1st-Timers
0
Maintainers
B TierC++ 144

yhirose/cpp-unicodelib

A C++17 header-only Unicode library. (Unicode 18.0.0)

20.0%
Merge Rate
1d
First Review
0%
1st-Timers
1
Maintainers
D TierC++ 3.6k

p-ranav/argparse

Argument Parser for Modern C++

0.0%
Merge Rate
12h
First Review
0%
1st-Timers
0
Maintainers
D TierC++ 863

Tracktion/choc

A collection of header only classes, permissively licensed, to provide basic useful tasks with the bare-minimum of dependencies.

0.0%
Merge Rate
6h
First Review
0%
1st-Timers
0
Maintainers
Best Header-only Open Source Repositories & C-Rank™ | GetMerged