malloc 话题在 GitHub 上没有填写简介，这里按 Star 数汇总最相关的热门仓库。
Hardened allocator designed for modern systems. It has integration into Android's Bionic libc and can be used externally with musl and glibc as a dynamic library for use on other Linux-based platforms. It will gain more portability/integration over time.
Message passing based allocator
The Hoard Memory Allocator: A Fast, Scalable, and Memory-efficient Malloc for Linux, Windows, and Mac.
🌈可编译苹果官方源码objc！现在有objc4底层源码,以及libmalloc等可编译版本，大家可以自由LLDB调试！
Lightweight dynamic memory manager library for embedded systems with memory constraints. It implements malloc, calloc, realloc and free functions
Constant-complexity, deterministic, very fast memory allocator (heap) for hard real-time high-integrity embedded systems. Allocation takes ≈120 cycles @ RP2350 irrespective of heap usage. There is little activity because the project is finished and does not require further changes.
Heap Layers: An Extensible Memory Allocation Infrastructure
Mirror of https://gitlab.redox-os.org/redox-os/ralloc
Embedded systems memory management library. Implementations for malloc(), free(), and other useful memory management functions
Generic manual memory management for golang
HiMem 是知乎内部使用的针对 Android 系统开发的线上应用内存使用监控与分析套件，目前支持 mmap/munmap/malloc/calloc/realloc/free 等库函数的监控，同时提供高性能的 Java 层和 Native 层调用栈捕获能力。
MALT is a MALloc Tracker to find where and how your made your memory allocations in C/C++/Fortran applications (and python in experimental status).
duma: Detect Unintended Memory Access (D.U.M.A.) - A Red-Zone memory allocator
A library for constructing allocators and memory pools. It also contains broadly useful abstractions and utilities for memory management. UMF allows users to manage multiple memory pools characterized by different attributes, allowing certain allocation types to be isolated from others and allocated using different hardware resources as required.
A simple, thread-safe memory manager for 64bit C++ applications and games. Focus is on preventing heap fragmentation in the absence of good virtual memory management, at the cost of wasting some memory. It works by globally overriding the new and delete operators.
A hostile memory allocator to make WebAssembly applications more predictable.
Fast multi-threaded memory allocator
When storing a value in a Go interface allocates memory on the heap.
A lock-free memory allocator
A custom malloc implementation in C explained