Learn C
14 entriesTutorials, free books and courses.
01C (programming language) (Wikipedia)Overview of the language, its history and standards.
02Learn C Programming (Programiz)Beginner tutorial with examples.
03C Language Introduction (GeeksforGeeks)Introduction to C; the old address redirects to this page.
04What is C Programming Language? (Guru99)Basics, introduction and history of C.
05Why the C programming language still runs the world (Toptal)Article on C's continuing role; the site blocks automated checks.
06Beej's Guide to C ProgrammingFree, well-regarded guide to C.
07Modern C (Jens Gustedt)Free book on modern C programming.
08Learn-C.orgFree interactive C tutorial.
09C Programming (Tutorialspoint)Tutorial covering C basics through advanced topics.
10C Tutorial (W3Schools)Example-based C tutorial.
11CS50 (Harvard)Free introductory computer science course that starts with C.
12Exercism: C trackPractice exercises with mentoring.
13comp.lang.c FAQClassic list of frequently asked questions about C.
14Awesome CCurated list of C frameworks, libraries and resources.
Language Standard & References
9 entriesOfficial and reference documentation.
15ISO C Working Group (WG14)The committee that maintains the C standard, with working documents.
16C reference (cppreference)Reference for the C language and standard library.
17C23 (cppreference)Language and library changes in C23.
18Microsoft C language docsMicrosoft documentation for C, including the MSVC compiler.
19GCC online documentationManuals for GCC, including C dialect options.
20Clang user manualUsing the Clang compiler.
21POSIX standard (The Open Group)POSIX interfaces used by C programs on Unix-like systems.
22Linux man pagesReference for system calls and the C library on Linux.
23Compiler ExplorerOnline tool for viewing compiler output for C code.
Compilers, Build & Debug Tools
13 entriesToolchain for building and debugging C.
24GCCGNU Compiler Collection.
25Clang and LLVMC language frontend for LLVM.
26TinyCCSmall, fast C compiler.
27CMakeCross-platform build system generator.
28GNU MakeClassic build automation tool.
29MesonFast build system.
30NinjaSmall build system focused on speed.
31vcpkgC and C++ package manager from Microsoft.
32ConanC and C++ package manager.
33GDBGNU debugger.
34ValgrindMemory error detection and profiling.
35AddressSanitizerFast memory error detector for C and C++.
36DoxygenDocumentation generator for C code.
Static Analysis, Testing & Coding Standards
9 entriesFind defects and write safer C.
37clang-tidyClang-based linter and static analyzer.
38CppcheckStatic analysis for C and C++; the site blocks automated checks.
39Frama-CPlatform for static analysis and formal verification of C code.
40SEI CERT C Coding StandardSecure coding rules for C; the old wiki address redirects here.
41MISRAPublisher of MISRA C guidelines for safety-critical systems.
42CWE (Common Weakness Enumeration)Catalog of software weaknesses, many of them C memory errors.
43CheckUnit testing framework for C.
44CMockaUnit testing framework for C with mock objects.
45Unity (ThrowTheSwitch)Unit test framework for C, popular in embedded work.
Libraries & Systems Software
11 entriesNotable C libraries and C-based systems.
46GNU C Library (glibc)The standard C library for most Linux systems.
47musl libcLightweight, standards-conforming C library.
48NewlibC library for embedded systems.
49GLibCore utility library used by GTK and GNOME.
50libuvCross-platform asynchronous I/O library.
51libcurlClient-side URL transfer library.
52SQLiteWidely used embedded SQL database written in C.
53Linux kernel documentationDocumentation for the Linux kernel, written in C.
54Linux kernel coding styleStyle rules for kernel C code.
55Zephyr ProjectOpen-source RTOS written in C for embedded devices.
56FreeRTOSReal-time operating system kernel for microcontrollers.
Popularity & Memory Safety
5 entriesC's standing and the alternatives.
57TIOBE IndexMonthly ranking of programming language popularity.
58CISA: The Case for Memory Safe RoadmapsUS government guidance encouraging a move away from memory-unsafe languages.
59RustMemory-safe systems language often used alongside or instead of C.
60ZigSystems language with a C-compatible toolchain.
61International Obfuscated C Code ContestLong-running contest of creative, obfuscated C programs.
Related Pages
8 entriesNeighbouring pages on this site.
62Programming LanguagesProgramming languages hub.
63Real-time Systems and RTOSReal-time operating systems, many written in C.
64Static Code Analysis ToolsStatic analysis tools.
65Integrated Development EnvironmentsIDEs for many languages.
66AlgorithmsAlgorithms resources.
67Software TestingSoftware testing.
68JavaJava resources.
69PythonPython resources.
Frequently Asked Questions
What is the C programming language?
C is a general-purpose, procedural language created in the early 1970s that remains widely used for operating systems, embedded software, databases and other performance-sensitive code.
What is the latest C standard?
C23 is the current ISO C standard, maintained by the ISO WG14 committee; the cppreference C23 page lists its language and library changes.
Which compiler should I use?
GCC and Clang are the main open-source compilers, MSVC is the Microsoft compiler, and TinyCC is a small, fast option for scripts and experiments.
How can I write safer C?
Use warnings and sanitizers (AddressSanitizer, Valgrind), static analysis (clang-tidy, Cppcheck, Frama-C) and a coding standard such as SEI CERT C or MISRA C. Memory-safe languages such as Rust are an alternative for new code.
How current is this page?
Links were checked in October 2026. Sites that block automated checks (Toptal and Cppcheck) are kept and may need a manual click. This page replaces the earlier five-link page of the same name; its five resources are kept.