Turfjs/turf

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A modular geospatial engine written in JavaScript and TypeScript

Stars: 10.5k
Forks: 1k
Open beginner issues: 0
Indexed issues: 233
Avg merge: 1h 11m
Merged PRs (30d): 4

Dominant language: TypeScript
License: MIT
Last GitHub push: Sep 7, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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233 open issues indexed

Deduplicate types testing Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Turfjs/turf#3139 · 2 comments · Opened Aug 5, 2026
Replace boolean-contains isPolyInPoly logic with difference implementation Open

@turf/boolean-contains

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Turfjs/turf#3109 · Opened Jul 25, 2026
bug(@turf/midpoint): altitude (z-coordinate) not interpolated for 3D points Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

Turfjs/turf#3086 · Opened Jun 30, 2026
NearestPointOnLine is not on the line Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Turfjs/turf#3055 · 3 comments · Opened Apr 21, 2026
source map error Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Turfjs/turf#3047 · 3 comments · Opened Apr 13, 2026
booleanValid incorrectly returns true for coordinates outside valid range (e.g., >180) Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Turfjs/turf#3041 · 3 comments · Opened Mar 18, 2026
@turf/bbox and @turf/bbox-polygon - spec adherance at anitmeridian Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#3039 · Opened Mar 15, 2026
clustersDbscan does not take units option into account Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

Turfjs/turf#3034 · Opened Mar 3, 2026
union method result is wrong Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#3033 · 3 reactions · Opened Mar 2, 2026
greatCircle broken for routes crossing the antimeridian in v7.3.2+ Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Turfjs/turf#3030 · 6 comments · 1 reaction · Opened Feb 24, 2026
Buffer should split polygons at the antimeridian Open

@turf/buffer

Difficulty 5/5 Over a week Newbie friendliness 35/100

Turfjs/turf#3029 · Opened Feb 23, 2026
Intersect - "Must specify at least 2 geometries" Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

Turfjs/turf#3028 · 1 comment · Opened Feb 19, 2026
nearestPointOnLine returns invalid segmentIndex when result is at the end of the last segment of the lineString Open

next-major-release

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Turfjs/turf#3023 · 4 comments · Opened Feb 9, 2026
Faciliating Debug Visualizations Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

Turfjs/turf#3013 · 6 comments · 1 reaction · Opened Feb 1, 2026
Unexpected elevation output when using line-chunk / line-slice-along Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

Turfjs/turf#3007 · 1 comment · Opened Jan 26, 2026
@turf/isobands generates wrong inner circle Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2999 · 1 comment · Opened Jan 13, 2026
@turf/clean-coords - behavior of degenerate polygons, addition of Collection support, and other tweaks Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

Turfjs/turf#2998 · Opened Jan 12, 2026
Update the transpilation targets of the various packages Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

Turfjs/turf#2989 · 12 comments · Opened Dec 22, 2025
Allow booleanWithin to support MultiLineString and MultiPolygon Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Turfjs/turf#2975 · 4 comments · Opened Dec 16, 2025
Increase type strictness of @turf/helper's geometry() coordinates Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

Turfjs/turf#2973 · 1 comment · Opened Dec 16, 2025
turf.difference doesn't terminate (infinite loop) Open

polyclip-ts

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2955 · 3 comments · Opened Nov 19, 2025
@turf/lineIntersect false negatives Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Turfjs/turf#2948 · 1 comment · 1 reaction · Opened Nov 10, 2025
@turf/lineSlice expected precision Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2947 · 4 comments · Opened Nov 10, 2025
@turf/intersect - missing polygon shapes in MultiPolygon clipping compared to Martinez Open

@turf/intersect

Difficulty 5/5 Over a week Newbie friendliness 35/100

Turfjs/turf#2932 · 4 comments · Opened Sep 12, 2025
@turf/buffer gives invalid inner buffer around closed LineString Open

@turf/buffer

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Turfjs/turf#2929 · 3 comments · 1 reaction · Opened Aug 11, 2025
@turf/difference adds unnecessary points to coordinates when one polygon is on the edge of another polygon. Open

@turf/difference

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Turfjs/turf#2928 · 8 comments · Opened Jul 30, 2025
@turf/buffer - buffer around a LineString has "hole" when buffer size is too big Open

@turf/buffer

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Turfjs/turf#2920 · 4 comments · Opened Jul 18, 2025
`kinks` possible false positives on Yosemite polygon Open

@turf/kinks

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2919 · 1 comment · Opened Jul 15, 2025
Area function ringArea() yields inconsistent results when circle/polygon contains one of the poles Open

@turf/area

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Turfjs/turf#2914 · 1 comment · Opened Jul 3, 2025
unkinkPolygon cant deal with duplicate coordinates Open

@turf/unkink-polygon

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Turfjs/turf#2912 · 1 comment · Opened Jun 30, 2025
@turf/ellipse Construction Open

@turf/ellipse

Difficulty 3/5 1-2 days Newbie friendliness 42/100

Turfjs/turf#2908 · Opened Jun 16, 2025
function for maximum inscribed rectangle Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

Turfjs/turf#2902 · Opened Jun 10, 2025
function for oriented, not-axis-aligned envelope (minimum rotated rectangle) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

Turfjs/turf#2900 · 8 comments · Opened Jun 10, 2025
`lineIntersect` missing intersects at vertex Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2899 · 2 comments · Opened Jun 10, 2025
polygonTangents returns two of the same point Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Turfjs/turf#2898 · Opened Jun 10, 2025
Consider Using a Different Approximation for turf.circle(...) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

Turfjs/turf#2897 · 3 comments · Opened Jun 6, 2025
It has a bug When creating a buffer with offset where the last point is collinear with previous points. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Turfjs/turf#2895 · 2 comments · Opened Jun 4, 2025
randomLineString and randomPolygon parameters use odd naming convention Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Turfjs/turf#2894 · 1 comment · Opened Jun 3, 2025
randomLineString does not take max_rotation option into account Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Turfjs/turf#2893 · 6 comments · Opened Jun 2, 2025
add precision parameter to intersect to pass into polyclip-ts? Open

polyclip-ts

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2890 · 2 comments · 1 reaction · Opened May 23, 2025
Antimeridian option for Center of Mass (suggestion) Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Turfjs/turf#2888 · Opened May 21, 2025
turf-difference creating holes instead of cutouts when input polys share an edge Open

polyclip-ts

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2887 · 3 comments · 1 reaction · Opened May 19, 2025
booleanContains doesn't handle concavity Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Turfjs/turf#2882 · Opened May 14, 2025
lineSlice on a loop Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Turfjs/turf#2872 · 6 comments · Opened Apr 24, 2025
@turf/unkink-polygon v7.2.0 eliminates holes in polygons Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

Turfjs/turf#2869 · 1 comment · Opened Apr 20, 2025
@turf/unkink-polygon v7.2.0 throws exception with simple triangles Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Turfjs/turf#2868 · Opened Apr 17, 2025
difference not clipping cleanly, leading to extra points and unexpected lines Open

@turf/difference polyclip-ts

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Turfjs/turf#2865 · 8 comments · 1 reaction · Opened Mar 27, 2025
`booleanPointInPolygon` function not working as expected Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2864 · 1 comment · Opened Mar 27, 2025
Improve documentation for rewind Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

Turfjs/turf#2858 · 3 comments · 1 reaction · Opened Mar 17, 2025
turf.disolve crashes Open

polyclip-ts

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Turfjs/turf#2854 · 4 comments · Opened Mar 16, 2025

Turfjs/turf

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