diff --git a/.prettierignore b/.prettierignore
deleted file mode 100644
index ce337c7f..00000000
--- a/.prettierignore
+++ /dev/null
@@ -1,9 +0,0 @@
-/css
-/types
-.svelte-kit
-.routify
-dist
-client
-build
-*.svx
-COMPONENT_API.json
\ No newline at end of file
diff --git a/biome.json b/biome.json
new file mode 100644
index 00000000..70c47cb7
--- /dev/null
+++ b/biome.json
@@ -0,0 +1,53 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": {
+    "enabled": false,
+    "clientKind": "git",
+    "useIgnoreFile": false
+  },
+  "files": {
+    "ignoreUnknown": false,
+    "ignore": [
+      "./css",
+      "./types",
+      "dist",
+      "build",
+      "client",
+      ".svelte-kit",
+      ".routify",
+      "*.svx",
+      "COMPONENT_API.json"
+    ]
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space"
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "double"
+    }
+  },
+  "overrides": [
+    {
+      "include": ["*.svelte"],
+      "linter": {
+        "rules": {
+          "style": {
+            "useConst": "off",
+            "useImportType": "off"
+          }
+        }
+      }
+    }
+  ]
+}
diff --git a/package-lock.json b/package-lock.json
index bc668092..34ea29fb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,6 +14,7 @@
         "flatpickr": "4.6.9"
       },
       "devDependencies": {
+        "@biomejs/biome": "1.9.4",
         "@sveltejs/vite-plugin-svelte": "^3.1.2",
         "@testing-library/jest-dom": "^6.6.3",
         "@testing-library/svelte": "^5.2.7",
@@ -25,8 +26,6 @@
         "culls": "^0.1.1",
         "jsdom": "^26.0.0",
         "postcss": "^8.5.3",
-        "prettier": "^3.5.3",
-        "prettier-plugin-svelte": "^3.3.3",
         "sass": "^1.49.11",
         "standard-version": "^9.5.0",
         "sveld": "^0.22.1",
@@ -128,6 +127,170 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@biomejs/biome": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/biome/-/biome-1.9.4.tgz",
+      "integrity": "sha512-1rkd7G70+o9KkTn5KLmDYXihGoTaIGO9PIIN2ZB7UJxFrWw04CZHPYiMRjYsaDvVV7hP1dYNRLxSANLaBFGpog==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT OR Apache-2.0",
+      "bin": {
+        "biome": "bin/biome"
+      },
+      "engines": {
+        "node": ">=14.21.3"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/biome"
+      },
+      "optionalDependencies": {
+        "@biomejs/cli-darwin-arm64": "1.9.4",
+        "@biomejs/cli-darwin-x64": "1.9.4",
+        "@biomejs/cli-linux-arm64": "1.9.4",
+        "@biomejs/cli-linux-arm64-musl": "1.9.4",
+        "@biomejs/cli-linux-x64": "1.9.4",
+        "@biomejs/cli-linux-x64-musl": "1.9.4",
+        "@biomejs/cli-win32-arm64": "1.9.4",
+        "@biomejs/cli-win32-x64": "1.9.4"
+      }
+    },
+    "node_modules/@biomejs/cli-darwin-arm64": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-arm64/-/cli-darwin-arm64-1.9.4.tgz",
+      "integrity": "sha512-bFBsPWrNvkdKrNCYeAp+xo2HecOGPAy9WyNyB/jKnnedgzl4W4Hb9ZMzYNbf8dMCGmUdSavlYHiR01QaYR58cw==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-darwin-x64": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-x64/-/cli-darwin-x64-1.9.4.tgz",
+      "integrity": "sha512-ngYBh/+bEedqkSevPVhLP4QfVPCpb+4BBe2p7Xs32dBgs7rh9nY2AIYUL6BgLw1JVXV8GlpKmb/hNiuIxfPfZg==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-linux-arm64": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64/-/cli-linux-arm64-1.9.4.tgz",
+      "integrity": "sha512-fJIW0+LYujdjUgJJuwesP4EjIBl/N/TcOX3IvIHJQNsAqvV2CHIogsmA94BPG6jZATS4Hi+xv4SkBBQSt1N4/g==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-linux-arm64-musl": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64-musl/-/cli-linux-arm64-musl-1.9.4.tgz",
+      "integrity": "sha512-v665Ct9WCRjGa8+kTr0CzApU0+XXtRgwmzIf1SeKSGAv+2scAlW6JR5PMFo6FzqqZ64Po79cKODKf3/AAmECqA==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-linux-x64": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-1.9.4.tgz",
+      "integrity": "sha512-lRCJv/Vi3Vlwmbd6K+oQ0KhLHMAysN8lXoCI7XeHlxaajk06u7G+UsFSO01NAs5iYuWKmVZjmiOzJ0OJmGsMwg==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-linux-x64-musl": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64-musl/-/cli-linux-x64-musl-1.9.4.tgz",
+      "integrity": "sha512-gEhi/jSBhZ2m6wjV530Yy8+fNqG8PAinM3oV7CyO+6c3CEh16Eizm21uHVsyVBEB6RIM8JHIl6AGYCv6Q6Q9Tg==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-win32-arm64": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-arm64/-/cli-win32-arm64-1.9.4.tgz",
+      "integrity": "sha512-tlbhLk+WXZmgwoIKwHIHEBZUwxml7bRJgk0X2sPyNR3S93cdRq6XulAZRQJ17FYGGzWne0fgrXBKpl7l4M87Hg==",
+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
+    "node_modules/@biomejs/cli-win32-x64": {
+      "version": "1.9.4",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-x64/-/cli-win32-x64-1.9.4.tgz",
+      "integrity": "sha512-8Y5wMhVIPaWe6jw2H+KlEm4wP/f7EW3810ZLmDlrEEy5KvBsb9ECEfu/kMWD484ijfQ8+nIi0giMgu9g1UAuuA==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">=14.21.3"
+      }
+    },
     "node_modules/@carbon/telemetry": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/@carbon/telemetry/-/telemetry-0.1.0.tgz",
@@ -3988,17 +4151,6 @@
         "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
-    "node_modules/prettier-plugin-svelte": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/prettier-plugin-svelte/-/prettier-plugin-svelte-3.3.3.tgz",
-      "integrity": "sha512-yViK9zqQ+H2qZD1w/bH7W8i+bVfKrD8GIFjkFe4Thl6kCT9SlAsXVNmt3jCvQOCsnOhcvYgsoVlRV/Eu6x5nNw==",
-      "dev": true,
-      "license": "MIT",
-      "peerDependencies": {
-        "prettier": "^3.0.0",
-        "svelte": "^3.2.0 || ^4.0.0-next.0 || ^5.0.0-next.0"
-      }
-    },
     "node_modules/pretty-format": {
       "version": "27.5.1",
       "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.5.1.tgz",
diff --git a/package.json b/package.json
index 2c958474..744c80f0 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "test:ui": "vite",
     "test:src-types": "tsc types/**/*.ts",
     "test:types": "svelte-check --workspace tests",
-    "lint": "prettier --write --cache \"**/*.{svelte,md,js,json,ts}\"",
+    "lint": "biome format --write ./",
     "build:css": "node scripts/build-css",
     "build:docs": "node scripts/build-docs && node scripts/format-component-api",
     "postinstall": "ibmtelemetry --config=telemetry.yml",
@@ -45,6 +45,7 @@
     "flatpickr": "4.6.9"
   },
   "devDependencies": {
+    "@biomejs/biome": "1.9.4",
     "@sveltejs/vite-plugin-svelte": "^3.1.2",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/svelte": "^5.2.7",
@@ -56,8 +57,6 @@
     "culls": "^0.1.1",
     "jsdom": "^26.0.0",
     "postcss": "^8.5.3",
-    "prettier": "^3.5.3",
-    "prettier-plugin-svelte": "^3.3.3",
     "sass": "^1.49.11",
     "standard-version": "^9.5.0",
     "sveld": "^0.22.1",
@@ -73,11 +72,6 @@
       "tag": true
     }
   },
-  "prettier": {
-    "plugins": [
-      "prettier-plugin-svelte"
-    ]
-  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/carbon-design-system/carbon-components-svelte.git"
@@ -101,4 +95,4 @@
     "Eric Liu (https://github.com/metonym)",
     "Enrico Sacchetti (https://github.com/theetrain)"
   ]
-}
+}
\ No newline at end of file