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mapbox
earcut
JavaScript2018–2025
mapbox / earcut

earcut

The fastest and smallest JavaScript polygon triangulation library for your WebGL apps

Web DevelopmentMaps & GeospatialLibraries & SDKs
Explore on GitHubRead Hacker News discussions
3Distinct people
3Mentions
0Explicit recommenders
2.6KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

The fastest and smallest JavaScript polygon triangulation library for your WebGL apps

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year3 dated mentions

Observed mentions: 2018-01-03 02:48:30 UTC to 2025-09-20 11:18:13 UTC.

012018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20182019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments20212022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC101
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC000
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC101
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC000
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC000
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC000
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC101

What Hacker News says

3 sources
CMay·Sep 20, 2025
On the other hand, their actual dependency list looks closer to this, and this is definitely not comprehensive: https://github.com/ionic-team/capacitor https://github.com/Microsoft/tslib https://github.com/codemirror https://github.com/codemirror/autocomplete https://github.com/codemirror/language https://github.com/marijnh/style-mod https://github.com/marijnh/crelt https://github.com/marijnh/find-cluster-break https://github.com/marijnh/w3c-keyname https://github.com/cure53/DOMPurify https://github.com/electron/electron https://github.com/electron/get https://github.com/debug-js/debug https://github.com/vercel/ms https://github.com/sindresorhus/env-paths https://github.com/sindresorhus/got https://github.com/sindresorhus/is https://github.com/visionmedia/node-progress https://github.com/npm/node-semver https://github.com/malept/sumchecke
Read the rest
r https://github.com/szmarczak/http-timer https://github.com/szmarczak/defer-to-connect https://github.com/szmarczak/cacheable-lookup https://github.com/jaredwray/cacheable https://github.com/biomejs/biome https://github.com/sindresorhus/decompress-response https://github.com/sindresorhus/mimic-response https://github.com/octet-stream/form-data-encoder https://github.com/szmarczak/http2-wrapper https://github.com/szmarczak/resolve-alpn https://github.com/sindresorhus/lowercase-keys https://github.com/sindresorhus/p-cancelable https://github.com/sindresorhus/responselike https://github.com/sindresorhus/type-fest https://github.com/sindresorhus/tagged-tag https://github.com/max-mapper/extract-zip https://github.com/sindresorhus/get-stream https://github.com/Sec-ant/readable-stream https://github.com/sindresorhus/is-stream https://github.com/thejoshwolfe/yauzl https://github.com/brianloveswords/buffer-crc32 https://github.com/andrewrk/node-pend https://github.com/i18next/i18next https://github.com/babel/babel https://github.com/microsoft/TypeScript https://github.com/lezer-parser https://github.com/lucide-icons/lucide https://github.com/mathjax/MathJax https://github.com/mermaid-js/mermaid https://github.com/moment/moment https://github.com/mozilla/pdf.js https://github.com/pixijs/pixijs https://github.com/mapbox/earcut https://github.com/primus/eventemitter3 https://github.com/matt-way/gifuct-js https://github.com/matt-way/jsBinarySchemaParser https://github.com/kaimallea/isMobile https://github.com/browserslist/caniuse-lite https://github.com/jkroso/parse-svg-path https://github.com/avoidwork/tiny-lru https://github.com/PrismJS/prism/ https://github.com/mourner/rbush https://github.com/mourner/quickselect https://github.com/remarkjs/remark https://github.com/hakimel/reveal.js https://github.com/barrysteyn/node-scrypt https://github.com/nodejs/nan https://github.com/mixmark-io/turndown https://github.com/mixmark-io/domino https://github.com/webpack/webpack https://github.com/acornjs/acorn https://github.com/nicolo-ribaudo/acorn-import-phases https://github.com/browserslist/browserslist https://github.com/web-platform-dx/baseline-browser-mapping https://github.com/kilian/electron-to-chromium https://github.com/chicoxyzzy/node-releases https://github.com/browserslist/update-db https://github.com/lukeed/escalade https://github.com/alexeyraspopov/picocolors https://github.com/samccone/chrome-trace-event https://github.com/webpack/enhanced-resolve https://github.com/isaacs/node-graceful-fs https://github.com/webpack/tapable https://github.com/guybedford/es-module-lexer https://github.com/eslint/js https://github.com/browserify/events https://github.com/fitzgen/glob-to-regexp https://github.com/isaacs/node-graceful-fs https://github.com/npm/json-parse-even-better-errors https://github.com/webpack/loader-runner https://github.com/jshttp/mime-types https://github.com/jshttp/mime-db https://github.com/suguru03/neo-async https://github.com/webpack/schema-utils https://github.com/ajv-validator/ajv https://github.com/epoberezkin/fast-deep-equal https://github.com/fastify/fast-uri https://github.com/epoberezkin/json-schema-traverse https://github.com/floatdrop/require-from-string https://github.com/ajv-validator/ajv-formats https://github.com/ajv-validator/ajv-keywords https://github.com/DefinitelyTyped/DefinitelyTyped https://github.com/webpack-contrib/terser-webpack-plugin https://github.com/jridgewell/sourcemaps https://github.com/jestjs/jest https://github.com/yahoo/serialize-javascript https://github.com/browserify/randombytes https://github.com/terser/terser https://github.com/tj/commander.js https://github.com/evanw/node-source-map-support https://github.com/LinusU/buffer-from https://github.com/mozilla/source-map https://github.com/webpack/watchpack https://github.com/webpack/webpack-sources https://github.com/eemeli/yaml
In Less is safer: Reducing the risk of supply chain attacks
mourner·Dec 8, 2020
Thank you! I'd also like to list some of the building blocks of GL JS that remain open source and are heavily used in other open source projects: - GeoJSON-VT (fast GeoJSON processing) https://github.com/mapbox/geojson-vt - Earcut (triangulating polygons) https://github.com/mapbox/earcut - Supercluster (point clustering) https://github.com/mapbox/supercluster - vt-pbf (converting GeoJSON tiles to VT) https://github.com/mapbox/vt-pbf - vector-tile (decoding vector tiles) https://github.com/mapbox/vector-tile-js - pbf (fast reading/writing of protobuf) https://github.com/mapbox/pbf - TinySDF (generating SDF from local CJK fonts) https://github.com/mapbox/tiny-sdf - Potpack (generating sprite layouts) https://github.com/mapbox/potpack - grid-index (spatial index for collisions/querying) https://github.com/mapbox/grid-index - Pixelmatch (imag
Read the rest
e comparison in render tests) https://github.com/mapbox/pixelmatch - Polylabel (fitting labels into polygons) https://github.com/mapbox/polylabel
In Mapbox-gl-js is no longer under the 3-Clause BSD license
morganherlocker·Jan 3, 2018
> For example, while Mapbox use open source (OSM) tiles, other services - e.g. their search API - aren't open, as Mapzen's is(/was). The geocoding engine[1] powering the Mapbox Search API is open source, and has been since its inception in 2012. The same is true of the routing engine[2] powering the Mapbox Directions API (OSRM), and the engine used to create Vector Tiles[3] for the Mapbox Maps API, along with the engines powering most Mapbox APIs. Non-open code at Mapbox is usually tightly coupled to our infrastructure or data processing pipelines, which would not be generally useful to the community at large. The useful bits of even this infrastructure code is also typically abstracted into generally useful libraries for community use, such as earcut[4], rasterio[5], tile-cover[6], and hundreds of other modules of all varieties. - [1]
Read the rest
https://github.com/mapbox/carmen - [2] https://github.com/project-osrm/osrm-backend - [3] https://github.com/mapnik/mapnik - [4] https://github.com/mapbox/earcut - [5] https://github.com/mapbox/rasterio - [6] https://github.com/mapbox/tile-cover
In Mapzen Shutdown

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