# DynamoRIO/drmemory

Memory Debugger for Windows, Linux, Mac, and Android

Repository: https://github.com/DynamoRIO/drmemory
Canonical: https://ross.abutalabs.com/products/drmemory
Language: C
License: NOASSERTION
License Family: other
Last push: 2025-12-13T03:36:14+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 57, release rhythm 61, longevity 100
- inputs: {"age_days": 4297, "days_push": 263, "days_rel": 263, "gap_med": 21.0, "n_releases_24m": 13}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2744, forks 289 (observed 2026-08-28T04:07:16.675996+00:00)

## What it is
Dr. Memory is a memory debugger that detects memory errors such as uninitialized reads, heap overflows, use-after-free, double frees, and memory leaks in unmodified application binaries. It is built on the DynamoRIO dynamic instrumentation platform and runs on Windows, Linux, Mac, and Android.

## Use cases
- find memory leaks in my C++ application
- detect use-after-free and double-free bugs
- check for uninitialized memory accesses on Windows
- valgrind alternative for mac and windows
- trace windows system calls
- debug heap buffer overflows in native binaries

## When to choose
- you need memory error detection on Windows, Mac, or Android where Valgrind is unavailable
- you must analyze unmodified binaries without recompiling
- you want faster memory checking than Valgrind
- you need a Windows system call tracer (drstrace)

## When to avoid
- you only target Linux and prefer Valgrind's mature ecosystem
- you need source-level sanitizers with compiler integration like ASan
- your application is sensitive to any instrumentation overhead

## Facets
- artifact type: cli-tool
- maturity: active
- function: testing, developer-tools, monitoring
- domain: developer-tools, performance, operating-systems
- platform: windows, cli, cpp, c
- tags: memory-debugger, dynamic-instrumentation, memory-leak-detection, valgrind-alternative, dynamorio, sanitizer, system-call-tracing, linux, macos, android

## Member repositories
- DynamoRIO/drmemory (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:16.675996+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:19:05.393831+00:00, confidence not recorded.
  - readme: https://github.com/DynamoRIO/drmemory (fetched 2026-08-28T04:07:16.675996+00:00, sha 13ab1641335b)
- Data as of 2026-08-30T08:39:29.467469+00:00.