diff --git a/data/fontrepo/fonts/README b/data/fontrepo/fonts/README
index 4609c342..ee435742 100644
--- a/data/fontrepo/fonts/README
+++ b/data/fontrepo/fonts/README
@@ -44,6 +44,7 @@ Preparing font formats
 -----------------------
 
 1. From the upstream releases, take the TTF versions.
-2. To generate woff format, get: https://github.com/rillig/sfntly
-3. Use https://github.com/google/woff2 to generate woff2 from ttf. This will
-   produce a compressed woff2 file. Modern browsers support this format.
+2. Use sfnt2woff to generate woff files
+$ ls *.ttf | xargs -n1 ../../../../node_modules/sfnt2woff/cli.js
+3. Use https://github.com/google/woff2 to generate woff2 files
+$ ls *.ttf | xargs -n1 /path/to/woff2/woff2_compress
diff --git a/package-lock.json b/package-lock.json
index 52f127a9..94c28466 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,7 +4,6 @@
 	"requires": true,
 	"packages": {
 		"": {
-			"name": "UniversalLanguageSelector",
 			"devDependencies": {
 				"@wikimedia/codex-design-tokens": "0.10.0",
 				"eslint-config-wikimedia": "0.25.0",
@@ -13,6 +12,7 @@
 				"grunt-eslint": "24.0.1",
 				"grunt-stylelint": "0.18.0",
 				"postcss-less": "6.0.0",
+				"sfnt2woff": "^1.0.1",
 				"stylelint-config-wikimedia": "0.14.0",
 				"svgo": "2.8.0"
 			}
@@ -3074,6 +3074,12 @@
 				"node": "*"
 			}
 		},
+		"node_modules/minimist": {
+			"version": "0.0.10",
+			"resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
+			"integrity": "sha512-iotkTvxc+TwOm5Ieim8VnSNvCDjCK9S8G3scJ50ZthspSxa7jx50jkhYduuAtAjvfDUwSgOwf8+If99AlOEhyw==",
+			"dev": true
+		},
 		"node_modules/minimist-options": {
 			"version": "4.1.0",
 			"resolved": "https://registry.npmjs.org/minimist-options/-/minimist-options-4.1.0.tgz",
@@ -3249,6 +3255,16 @@
 				"wrappy": "1"
 			}
 		},
+		"node_modules/optimist": {
+			"version": "0.6.1",
+			"resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
+			"integrity": "sha512-snN4O4TkigujZphWLN0E//nQmm7790RYaE53DdL7ZYwee2D8DDo9/EyYiKUfN3rneWUjhJnueija3G9I2i0h3g==",
+			"dev": true,
+			"dependencies": {
+				"minimist": "~0.0.1",
+				"wordwrap": "~0.0.2"
+			}
+		},
 		"node_modules/optionator": {
 			"version": "0.9.1",
 			"resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.1.tgz",
@@ -3333,6 +3349,12 @@
 				"node": ">=6"
 			}
 		},
+		"node_modules/pako": {
+			"version": "1.0.11",
+			"resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
+			"integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
+			"dev": true
+		},
 		"node_modules/parent-module": {
 			"version": "1.0.1",
 			"resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
@@ -3995,6 +4017,19 @@
 				"node": ">=10"
 			}
 		},
+		"node_modules/sfnt2woff": {
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/sfnt2woff/-/sfnt2woff-1.0.1.tgz",
+			"integrity": "sha512-em3KvF+HvLG0Z+rGlyCx5XdTqlk023a1neiz5p4KvQ1p17rzl9EHUQg+do0f2ZJ3KjbgFu1dZbvZ2l97kW605A==",
+			"dev": true,
+			"dependencies": {
+				"optimist": "^0.6.1",
+				"pako": "^1.0.6"
+			},
+			"bin": {
+				"sfnt2woff": "cli.js"
+			}
+		},
 		"node_modules/shebang-command": {
 			"version": "2.0.0",
 			"resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@@ -4634,6 +4669,15 @@
 				"node": ">=0.10.0"
 			}
 		},
+		"node_modules/wordwrap": {
+			"version": "0.0.3",
+			"resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
+			"integrity": "sha512-1tMA907+V4QmxV7dbRvb4/8MaRALK6q9Abid3ndMYnbyo8piisCmeONVqVSXqQA3KaP4SLt5b7ud6E2sqP8TFw==",
+			"dev": true,
+			"engines": {
+				"node": ">=0.4.0"
+			}
+		},
 		"node_modules/wrap-ansi": {
 			"version": "7.0.0",
 			"resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
@@ -7066,6 +7110,12 @@
 				"brace-expansion": "^1.1.7"
 			}
 		},
+		"minimist": {
+			"version": "0.0.10",
+			"resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
+			"integrity": "sha512-iotkTvxc+TwOm5Ieim8VnSNvCDjCK9S8G3scJ50ZthspSxa7jx50jkhYduuAtAjvfDUwSgOwf8+If99AlOEhyw==",
+			"dev": true
+		},
 		"minimist-options": {
 			"version": "4.1.0",
 			"resolved": "https://registry.npmjs.org/minimist-options/-/minimist-options-4.1.0.tgz",
@@ -7206,6 +7256,16 @@
 				"wrappy": "1"
 			}
 		},
+		"optimist": {
+			"version": "0.6.1",
+			"resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
+			"integrity": "sha512-snN4O4TkigujZphWLN0E//nQmm7790RYaE53DdL7ZYwee2D8DDo9/EyYiKUfN3rneWUjhJnueija3G9I2i0h3g==",
+			"dev": true,
+			"requires": {
+				"minimist": "~0.0.1",
+				"wordwrap": "~0.0.2"
+			}
+		},
 		"optionator": {
 			"version": "0.9.1",
 			"resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.1.tgz",
@@ -7266,6 +7326,12 @@
 			"integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
 			"dev": true
 		},
+		"pako": {
+			"version": "1.0.11",
+			"resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
+			"integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
+			"dev": true
+		},
 		"parent-module": {
 			"version": "1.0.1",
 			"resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
@@ -7722,6 +7788,16 @@
 				"lru-cache": "^6.0.0"
 			}
 		},
+		"sfnt2woff": {
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/sfnt2woff/-/sfnt2woff-1.0.1.tgz",
+			"integrity": "sha512-em3KvF+HvLG0Z+rGlyCx5XdTqlk023a1neiz5p4KvQ1p17rzl9EHUQg+do0f2ZJ3KjbgFu1dZbvZ2l97kW605A==",
+			"dev": true,
+			"requires": {
+				"optimist": "^0.6.1",
+				"pako": "^1.0.6"
+			}
+		},
 		"shebang-command": {
 			"version": "2.0.0",
 			"resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@@ -8234,6 +8310,12 @@
 			"integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
 			"dev": true
 		},
+		"wordwrap": {
+			"version": "0.0.3",
+			"resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
+			"integrity": "sha512-1tMA907+V4QmxV7dbRvb4/8MaRALK6q9Abid3ndMYnbyo8piisCmeONVqVSXqQA3KaP4SLt5b7ud6E2sqP8TFw==",
+			"dev": true
+		},
 		"wrap-ansi": {
 			"version": "7.0.0",
 			"resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
diff --git a/package.json b/package.json
index 91de8cda..cbb7d1d6 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
 		"grunt-eslint": "24.0.1",
 		"grunt-stylelint": "0.18.0",
 		"postcss-less": "6.0.0",
+		"sfnt2woff": "^1.0.1",
 		"stylelint-config-wikimedia": "0.14.0",
 		"svgo": "2.8.0"
 	},