diff --git a/.prettierrc.js b/.prettierrc.js
index 09e067316e2..9a0bbb28d83 100644
--- a/.prettierrc.js
+++ b/.prettierrc.js
@@ -28,7 +28,7 @@ module.exports = {
   'experimentalOperatorPosition': 'start',
   'overrides': [
     {
-      files: ['build/commands/tsconfig.json'],
+      files: ['tsconfig*.json'],
       options: {
         parser: 'jsonc',
       },
diff --git a/browser/resources/ai_chat_agent_new_tab_page/tsconfig.json b/browser/resources/ai_chat_agent_new_tab_page/tsconfig.json
index 58d7cfb0733..73f10c1bc17 100644
--- a/browser/resources/ai_chat_agent_new_tab_page/tsconfig.json
+++ b/browser/resources/ai_chat_agent_new_tab_page/tsconfig.json
@@ -4,6 +4,6 @@
     "**/*.ts",
     "**/*.tsx",
     "**/*.d.ts",
-    "../../../components/definitions/*.d.ts"
-  ]
+    "../../../components/definitions/*.d.ts",
+  ],
 }
diff --git a/browser/resources/brave_new_tab_page_refresh/tsconfig.json b/browser/resources/brave_new_tab_page_refresh/tsconfig.json
index 60fcc51f0d9..00c8b4b2501 100644
--- a/browser/resources/brave_new_tab_page_refresh/tsconfig.json
+++ b/browser/resources/brave_new_tab_page_refresh/tsconfig.json
@@ -1,4 +1,4 @@
 {
   "extends": "../../../tsconfig",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts"]
+  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts"],
 }
diff --git a/browser/resources/brave_welcome_page/tsconfig.json b/browser/resources/brave_welcome_page/tsconfig.json
index 60fcc51f0d9..00c8b4b2501 100644
--- a/browser/resources/brave_welcome_page/tsconfig.json
+++ b/browser/resources/brave_welcome_page/tsconfig.json
@@ -1,4 +1,4 @@
 {
   "extends": "../../../tsconfig",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts"]
+  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts"],
 }
diff --git a/chromium_presubmit_config.json5 b/chromium_presubmit_config.json5
index 947305e61b8..3e4d4a9e991 100644
--- a/chromium_presubmit_config.json5
+++ b/chromium_presubmit_config.json5
@@ -93,7 +93,7 @@
       ".*\\.css",
     ],
     "CheckParseErrors": [
-      ".*tsconfig\\.json",
+      ".*tsconfig.*\\.json",
       "components/brave_ads/core/test/data/invalid\\.json",
     ],
     "CheckNoBannedFunctions": [
diff --git a/components/ai_chat/resources/page/tsconfig.json b/components/ai_chat/resources/page/tsconfig.json
index 50138ad36d1..5ccb3f7f7b3 100644
--- a/components/ai_chat/resources/page/tsconfig.json
+++ b/components/ai_chat/resources/page/tsconfig.json
@@ -1,4 +1,9 @@
 {
   "extends": "../../../../tsconfig",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../../../definitions/*.d.ts"]
+  "include": [
+    "**/*.ts",
+    "**/*.tsx",
+    "**/*.d.ts",
+    "../../../definitions/*.d.ts",
+  ],
 }
diff --git a/components/ai_chat/resources/untrusted_conversation_frame/tsconfig.json b/components/ai_chat/resources/untrusted_conversation_frame/tsconfig.json
index 50138ad36d1..5ccb3f7f7b3 100644
--- a/components/ai_chat/resources/untrusted_conversation_frame/tsconfig.json
+++ b/components/ai_chat/resources/untrusted_conversation_frame/tsconfig.json
@@ -1,4 +1,9 @@
 {
   "extends": "../../../../tsconfig",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../../../definitions/*.d.ts"]
+  "include": [
+    "**/*.ts",
+    "**/*.tsx",
+    "**/*.d.ts",
+    "../../../definitions/*.d.ts",
+  ],
 }
diff --git a/components/brave_rewards/resources/tsconfig.json b/components/brave_rewards/resources/tsconfig.json
index 510921af711..6e769d6f06e 100644
--- a/components/brave_rewards/resources/tsconfig.json
+++ b/components/brave_rewards/resources/tsconfig.json
@@ -1,4 +1,4 @@
 {
   "extends": "../../../tsconfig",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../../definitions/*.d.ts"]
+  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../../definitions/*.d.ts"],
 }
diff --git a/components/brave_shields/resources/panel_new/tsconfig.json b/components/brave_shields/resources/panel_new/tsconfig.json
index 6783562bb2d..aebeb7f5f94 100644
--- a/components/brave_shields/resources/panel_new/tsconfig.json
+++ b/components/brave_shields/resources/panel_new/tsconfig.json
@@ -1,4 +1,4 @@
 {
   "extends": "../../../../tsconfig",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../definitions/*.d.ts"]
+  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../definitions/*.d.ts"],
 }
diff --git a/components/brave_wallet_ui/tsconfig.json b/components/brave_wallet_ui/tsconfig.json
index 1b2022dc0af..b024145a59e 100644
--- a/components/brave_wallet_ui/tsconfig.json
+++ b/components/brave_wallet_ui/tsconfig.json
@@ -6,6 +6,6 @@
     "**/*.d.ts",
     "../definitions/*.d.ts",
     "**/*.svg",
-    "*/*.svg"
-  ]
+    "*/*.svg",
+  ],
 }
diff --git a/components/email_aliases/resources/tsconfig.json b/components/email_aliases/resources/tsconfig.json
index f5c5ee00343..af86d306d32 100644
--- a/components/email_aliases/resources/tsconfig.json
+++ b/components/email_aliases/resources/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
-    "jsx": "react"
+    "jsx": "react",
   },
   "extends": "../../../../tsconfig.json",
-  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../../definitions/*.d.ts"]
+  "include": ["**/*.ts", "**/*.tsx", "**/*.d.ts", "../../definitions/*.d.ts"],
 }
diff --git a/tools/chromium_src/lit_mangler/lit_mangler_cli.ts b/tools/chromium_src/lit_mangler/lit_mangler_cli.ts
index 11256e74e7c..572f5908b4a 100644
--- a/tools/chromium_src/lit_mangler/lit_mangler_cli.ts
+++ b/tools/chromium_src/lit_mangler/lit_mangler_cli.ts
@@ -8,6 +8,7 @@ import { load, write } from './lit_mangler'
 import childProcess from 'child_process'
 import path from 'path'
 import fs from 'fs'
+import ts from 'typescript'
 
 const baseDir = path.join(__dirname, '../../../')
 const tsConfigPath = path.join(baseDir, 'tsconfig-mangle.json')
@@ -20,7 +21,14 @@ const tsConfigPath = path.join(baseDir, 'tsconfig-mangle.json')
  * @returns The path to the generated tsconfig
  */
 const getTsConfigForFiles = (genDir: string, files: string[]) => {
-  const tsConfig = JSON.parse(fs.readFileSync(tsConfigPath, 'utf8'))
+  const { config: tsConfig, error } = ts.readConfigFile(
+    tsConfigPath,
+    ts.sys.readFile,
+  )
+  if (error) {
+    console.error('Error reading tsconfig:', error)
+    process.exit(1)
+  }
 
   // Override the include path to only include the lit_mangler and the file
   // we want to check
diff --git a/tsconfig-jest.json b/tsconfig-jest.json
index 2c61d8846e6..d304806efba 100644
--- a/tsconfig-jest.json
+++ b/tsconfig-jest.json
@@ -3,6 +3,6 @@
   "compilerOptions": {
     "module": "ESNext",
     "target": "ESNext",
-    "esModuleInterop": true
-  }
+    "esModuleInterop": true,
+  },
 }
diff --git a/tsconfig-lint.json b/tsconfig-lint.json
index c3ce80aa686..d41707955dd 100644
--- a/tsconfig-lint.json
+++ b/tsconfig-lint.json
@@ -8,7 +8,7 @@
     "./*.js",
     "./*.ts",
     "./*.mjs",
-    "./*.mts"
+    "./*.mts",
   ],
-  "exclude": []
+  "exclude": [],
 }
diff --git a/tsconfig-mangle.json b/tsconfig-mangle.json
index c08e6839394..c871bbb4cfd 100644
--- a/tsconfig-mangle.json
+++ b/tsconfig-mangle.json
@@ -2,18 +2,18 @@
   "include": [
     "./tools/chromium_src/lit_mangler.ts",
     "./tools/chromium_src/lit_mangler_cli.ts",
-    "./chromium_src/**/*.lit_mangler.ts"
+    "./chromium_src/**/*.lit_mangler.ts",
   ],
   "compilerOptions": {
     "allowJs": true,
     "paths": {
-      "lit_mangler": ["./tools/chromium_src/lit_mangler/lit_mangler.ts"]
+      "lit_mangler": ["./tools/chromium_src/lit_mangler/lit_mangler.ts"],
     },
     "module": "ESNext",
     "moduleResolution": "node",
     "target": "ESNext",
     "allowSyntheticDefaultImports": true,
     "noEmit": true,
-    "skipLibCheck": true
-  }
+    "skipLibCheck": true,
+  },
 }
diff --git a/tsconfig-storybook.json b/tsconfig-storybook.json
index 7c198f6c3b8..d4bed367162 100644
--- a/tsconfig-storybook.json
+++ b/tsconfig-storybook.json
@@ -4,12 +4,12 @@
     "./components/definitions/*",
     "./components/**/storybook",
     "./components/**/stories/*.tsx",
-    "./components/**/*.stories.tsx"
+    "./components/**/*.stories.tsx",
   ],
   "compilerOptions": {
     "allowJs": true,
     "skipLibCheck": true,
     "noImplicitAny": true,
-    "outDir": "./storybook_dist"
-  }
+    "outDir": "./storybook_dist",
+  },
 }
diff --git a/tsconfig-webpack.json b/tsconfig-webpack.json
index 01028061695..faf010628c7 100644
--- a/tsconfig-webpack.json
+++ b/tsconfig-webpack.json
@@ -6,10 +6,10 @@
     // we don't mistakenly resolve to a different build configuration,
     // hiding an error or a timing issue with the dev's
     // current build configuration.
-    "paths": {}
+    "paths": {},
   },
   "include": [
     "./components/definitions/*",
-    "./components/brave_extension/extension/brave_extension/types/**/*"
-  ]
+    "./components/brave_extension/extension/brave_extension/types/**/*",
+  ],
 }
diff --git a/tsconfig.json b/tsconfig.json
index 3ac8a6bffe7..a57bbdf1a7f 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -17,7 +17,7 @@
       "es2017",
       "es2018",
       "es2019",
-      "esnext"
+      "esnext",
     ],
     "resolveJsonModule": true,
     "moduleResolution": "node",
@@ -44,7 +44,7 @@
         "../out/Component_arm64/gen/*",
         "../out/Static_arm64/gen/*",
         "../out/Release_arm64/gen/*",
-        "../out/Debug_arm64/gen/*"
+        "../out/Debug_arm64/gen/*",
       ],
       "//resources/mojo/*": [
         "../out/Component/gen/ui/webui/resources/tsc/mojo/*",
@@ -54,7 +54,7 @@
         "../out/Component_arm64/gen/ui/webui/resources/tsc/mojo/*",
         "../out/Static_arm64/gen/ui/webui/resources/tsc/mojo/*",
         "../out/Release_arm64/gen/ui/webui/resources/tsc/mojo/*",
-        "../out/Debug_arm64/gen/ui/webui/resources/tsc/mojo/*"
+        "../out/Debug_arm64/gen/ui/webui/resources/tsc/mojo/*",
       ],
       "chrome://resources/*": [
         "../out/Component/gen/ui/webui/resources/tsc/*",
@@ -64,7 +64,7 @@
         "../out/Component_arm64/gen/ui/webui/resources/tsc/*",
         "../out/Static_arm64/gen/ui/webui/resources/tsc/*",
         "../out/Release_arm64/gen/ui/webui/resources/tsc/*",
-        "../out/Debug_arm64/gen/ui/webui/resources/tsc/*"
+        "../out/Debug_arm64/gen/ui/webui/resources/tsc/*",
       ],
       "chrome://resources/brave/*": [
         "../out/Component/gen/brave/ui/webui/resources/tsc/*",
@@ -74,16 +74,16 @@
         "../out/Component_arm64/gen/brave/ui/webui/resources/tsc/*",
         "../out/Static_arm64/gen/brave/ui/webui/resources/tsc/*",
         "../out/Release_arm64/gen/brave/ui/webui/resources/tsc/*",
-        "../out/Debug_arm64/gen/brave/ui/webui/resources/tsc/*"
+        "../out/Debug_arm64/gen/brave/ui/webui/resources/tsc/*",
       ],
-      "$web-common/*": ["components/common/*"]
+      "$web-common/*": ["components/common/*"],
     },
     "typeRoots": ["./node_modules/@types", "./components/definitions"],
     // optional
     "forceConsistentCasingInFileNames": true,
     "noImplicitReturns": true,
     "strictNullChecks": true,
-    "noUnusedLocals": true
+    "noUnusedLocals": true,
   },
-  "include": []
+  "include": [],
 }