1.aria2 / aria2
aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
+98 stars
from 43,274 · score 4.60
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
30 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.simdjson / simdjson
Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
+33 stars
from 24,461 · score 3.53
3.gabime / spdlog
Fast C++ logging library.
+22 stars
from 29,705 · score 3.14
4.federico-busato / Modern-CPP-Programming
Modern C++ Programming Course (C++03/11/14/17/20/23/26)
+19 stars
from 16,251 · score 3.00
+17 stars
from 43,563 · score 2.89
6.changkun / modern-cpp-tutorial
📚 Modern C++ Tutorial: C++11 to C++26 On the Fly | https://changkun.de/modern-cpp/
+16 stars
from 25,920 · score 2.83
7.yhirose / cpp-httplib
A C++ header-only HTTP/HTTPS server and client library
+16 stars
from 16,938 · score 2.83
8.AnthonyCalandra / modern-cpp-features
A cheatsheet of modern C++ language and library features.
+10 stars
from 21,923 · score 2.40
9.CLIUtils / CLI11
CLI11 is a command line parser for C++11 and beyond that provides a rich feature set with a simple and intuitive interface.
+7 stars
from 4,505 · score 2.08
10.fastfloat / fast_float
Fast and exact implementation of the C++ from_chars functions for number types: 4x to 10x faster than strtod, part of GCC 12, MySQL, DuckDB, Chromium, Redis and WebKit/Safari
+6 stars
from 2,135 · score 1.95
11.andreasfertig / cppinsights
C++ Insights - See your source code with the eyes of a compiler
+3 stars
from 4,684 · score 1.39
12.martinus / nanobench
Simple, fast, accurate single-header microbenchmarking functionality for C++11/14/17/20
+3 stars
from 1,747 · score 1.39
13.Taywee / args
A header-only C++ argument parser library. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API).
+3 stars
from 1,643 · score 1.39
14.taocpp / PEGTL
Parsing Expression Grammar Template Library
+2 stars
from 2,168 · score 1.10
15.vimpunk / mio
Cross-platform C++11 header-only library for memory mapped file IO
+2 stars
from 1,959 · score 1.10
16.bloomberg / bde
Basic Development Environment - a set of foundational C++ libraries used at Bloomberg.
+2 stars
from 1,852 · score 1.10
17.martinus / robin-hood-hashingArchived
Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
+2 stars
from 1,618 · score 1.10
18.VcDevel / Vc
SIMD Vector Classes for C++
+2 stars
from 1,548 · score 1.10
19.mpark / variant
C++17 `std::variant` for C++11/14/17
+2 stars
from 715 · score 1.10
20.doctest / doctest
The fastest feature-rich C++11/14/17/20/23 single-header testing framework
+1 stars
from 6,901 · score 0.69
21.Qihoo360 / evpp
A modern C++ network library for developing high performance network services in TCP/UDP/HTTP protocols.
+1 stars
from 3,774 · score 0.69
22.p-ranav / tabulate
Table Maker for Modern C++
+1 stars
from 2,178 · score 0.69
23.nCine / nCine
A cross-platform 2D game engine
+1 stars
from 1,344 · score 0.69
24.fraillt / bitsery
Your binary serialization library
+1 stars
from 1,268 · score 0.69
25.biojppm / rapidyaml
Rapid YAML - a library to parse and emit YAML, and do it fast.
+1 stars
from 761 · score 0.69
26.softwareQinc / qpp
Modern C++ quantum computing library
+1 stars
from 677 · score 0.69
27.kthohr / stats
A C++ header-only library of statistical distribution functions.
+1 stars
from 558 · score 0.69
28.arun11299 / cpp-jwt
JSON Web Token library for C++
+1 stars
from 441 · score 0.69
29.p-ranav / fccf
fccf: A command-line tool that quickly searches through C/C++ source code in a directory based on a search string and prints relevant code snippets that match the query.
+1 stars
from 390 · score 0.69
30.sony / nmos-cpp
An NMOS (Networked Media Open Specifications) Registry and Node in C++ (IS-04, IS-05)
+1 stars
from 198 · score 0.69