littlefs-project/littlefs
A little fail-safe filesystem designed for microcontrollers observed · 2026-10-21
Health v2 · maintenance only
84/100
- Activity 99
- Release rhythm 57
- Longevity 100
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: 72.0
- age_days: 3524
- days_rel: 210
- days_push: 6
- n_releases_24m: 7
Adoption not part of the score
6973 stars · 1038 forks observed · 2026-10-21
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
littlefs is a small fail-safe filesystem library written in C, designed for microcontrollers and flash storage. It provides power-loss resilience via copy-on-write, dynamic wear leveling, and strictly bounded RAM/ROM usage.
Use cases
- store files on flash memory in an embedded device
- filesystem that survives random power loss on a microcontroller
- wear leveling for NOR/NAND flash storage
- small-footprint filesystem with bounded RAM usage
- persist configuration data on an IoT device
- recoverable filesystem for firmware that can be interrupted at any time
When to choose
- you need a filesystem on a microcontroller with limited RAM/ROM
- your device can lose power at any moment and must not corrupt data
- you need wear leveling and bad-block handling on flash storage
When to avoid
- you need a filesystem for desktop/server storage with high throughput
- you need POSIX permissions, symlinks, or advanced filesystem features
- your storage is not flash-based block storage
Facets
library · maturity stable
file-system embedded embedded-systems files developer-tools embedded c iot cross-platform flash-filesystem wear-leveling power-loss-resilience microcontroller copy-on-write fail-safe
1 source
- readme: https://github.com/littlefs-project/littlefs · fetched 2026-10-21 · 5d2d406d12f0
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| littlefs-project/littlefs | main | 84 |
For agents
markdown · JSON · MCP: product_card(name="littlefs-project/littlefs")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem