Tencent/MMKV
Some data may be outdated — see provenance labels.
An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, POSIX, and OHOS. observed · 2026-09-30
Health v2 · maintenance only
94/100
- Activity 94
- Release rhythm 91
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 19.0
- age_days: 2955
- days_rel: 60
- days_push: 36
- n_releases_24m: 19
Adoption not part of the score
18754 stars · 1989 forks observed · 2026-09-30
What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-19, confidence 0.98
MMKV is a high‑performance, small‑footprint key‑value storage library originally built for WeChat. It uses memory‑mapped files and protobuf encoding to provide fast, multi‑process safe persistence on mobile and desktop platforms.
Use cases
- Persist user preferences and small configuration data on Android or iOS apps
- Cache temporary data for fast retrieval in mobile applications
- Share simple data between multiple processes of the same app
- Store lightweight session or token information across app launches
- Replace SharedPreferences or NSUserDefaults with a faster alternative
When to choose
- You need a tiny binary size (~50 KB) and low latency key‑value access on mobile devices
- Your data model is simple key‑value pairs without complex queries or relationships
- Cross‑platform support for Android, iOS/macOS, Windows, and POSIX is required
- Multi‑process read/write concurrency is a requirement
When to avoid
- You need relational queries, indexing, or advanced database features
- Your dataset is large (megabytes to gigabytes) or requires complex transactions
- Encryption or fine‑grained security controls are mandatory out of the box
Facets
library · maturity active
database mobile-development windows mmap protobuf kotlin-multiplatform wechat key-value small-binary data-engineering android ios macos linux posix
1 source
- readme: https://github.com/Tencent/MMKV · fetched 2026-09-30 · a1f454dca37f
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Tencent/MMKV | main | 94 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem