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fleaflet/flutter_map

This system is a Flutter mapping library that provides a comprehensive suite of map rendering components, including tile layers, markers, polygons, polylines, circles, and image overlays. It features a robust camera and gesture handling system that supports complex interactions like fling, rotation, and keyboard navigation. The library also includes utilities for coordinate reference systems, tile caching, and performance optimization through layer-specific hit testing and culling.

55.0

Adequate · 1 August 2026

22k

lines of production code

Dart

primary language

4

bus factor · 194 authors in all

3

measurements over time

CAI band scale
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How it got here

2018 · Modernization and API consolidation

This period focused on modernizing the project's infrastructure and example application, including migrating to modern build systems, updating dependencies, and regenerating native platform configurations. The core library underwent significant refactoring, consolidating the public API and introducing a structured coordinate reference system for improved performance. Additionally, gesture handling and event management were completely restructured to support a more robust interaction model.

16 changes

2019–2023 · platform expansion and architectural refactoring

This period focused on expanding the library's platform support to include web, macOS, and Windows, while significantly refactoring the core architecture. Key changes include a major reimplementation of the TileLayer, the introduction of a new camera and state management system, and the addition of extensive test coverage and benchmarking tools.

31 changes

2024–2026 · Layer infrastructure and tile caching

This period focused on expanding the map rendering capabilities by introducing new layers for circles, markers, and images, alongside a comprehensive refactor of the polyline layer. The work also established a robust internal infrastructure for layer interactivity, hit-testing, and projection simplification, while adding built-in support for local and network tile caching.

14 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 1 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit cbb6eb7b5f — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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