diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 000000000..87f877b28
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,5 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
diff --git a/package.json b/package.json
index fa870f66c..9491ac60e 100644
--- a/package.json
+++ b/package.json
@@ -15,13 +15,14 @@
     "prettier:diff": "yarn nit:source",
     "lint-heading-ids": "node scripts/headingIdLinter.js",
     "fix-headings": "node scripts/headingIdLinter.js --fix",
-    "ci-check": "npm-run-all prettier:diff --parallel lint tsc lint-heading-ids rss",
+    "ci-check": "npm-run-all prettier:diff --parallel lint tsc lint-heading-ids rss lint-editorconfig",
     "tsc": "tsc --noEmit",
     "start": "next start",
     "postinstall": "patch-package && (is-ci || husky install .husky)",
     "check-all": "npm-run-all prettier lint:fix tsc rss",
     "rss": "node scripts/generateRss.js",
     "cache-reset": "rm -rf node_modules/.cache && rm -rf .next && yarn cache clean",
+    "lint-editorconfig": "yarn editorconfig-checker",
     "textlint-test": "yarn mocha ./textlint/tests/utils && yarn mocha ./textlint/tests/rules",
     "textlint-docs": "node ./textlint/generators/genTranslateGlossaryDocs.js && git add wiki/translate-glossary.md",
     "textlint-lint": "yarn textlint ./src/content --rulesdir ./textlint/rules -f pretty-error"
@@ -65,6 +66,7 @@
     "asyncro": "^3.0.0",
     "autoprefixer": "^10.4.2",
     "babel-eslint": "10.x",
+    "editorconfig-checker": "^6.0.0",
     "eslint": "7.x",
     "eslint-config-next": "12.0.3",
     "eslint-config-react-app": "^5.2.1",
@@ -115,6 +117,7 @@
     "showDetails": true
   },
   "lint-staged": {
+    "*": "yarn editorconfig-checker",
     "*.{js,ts,jsx,tsx,css}": "yarn prettier",
     "src/**/*.md": [
       "yarn fix-headings",
diff --git a/yarn.lock b/yarn.lock
index 4f186e5bf..6be6095b5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2715,6 +2715,11 @@ eastasianwidth@^0.2.0:
   resolved "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz"
   integrity sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==
 
+editorconfig-checker@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/editorconfig-checker/-/editorconfig-checker-6.0.0.tgz#f9bdcbd13411aab9a208030f88051add97bff2f6"
+  integrity sha512-uyTOwLJzR/k7ugiu7ITjCzkLKBhXeirQZ8hGlUkt1u/hq2Qu1E8EslgFZDN+lxZoQc97eiI87sUFgVILK4P+YQ==
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz"