diff --git a/app/about/license/ThirdPartyLicenses.tsx b/app/about/license/ThirdPartyLicenses.tsx
index 4b051e1..40c5617 100644
--- a/app/about/license/ThirdPartyLicenses.tsx
+++ b/app/about/license/ThirdPartyLicenses.tsx
@@ -1,18 +1,9 @@
 "use client";
 
 import { FallbackPre } from "@/markdown/styledSyntaxHighlighter";
+import { LicenseEntry } from "next-license-list";
 import { useState } from "react";
 
-export interface LicenseEntry {
-  name: string;
-  version: string;
-  author?: string;
-  repository?: string;
-  source?: string;
-  license: string;
-  licenseText?: string;
-}
-
 export function ThirdPartyLicenses({ licenses }: { licenses: LicenseEntry[] }) {
   const [expanded, setExpanded] = useState<string | null>(null);
 
@@ -21,30 +12,6 @@ export function ThirdPartyLicenses({ licenses }: { licenses: LicenseEntry[] }) {
       {licenses.map((pkg) => {
         const key = `${pkg.name}@${pkg.version}`;
         const isOpen = expanded === key;
-        let repositoryURL: string | undefined = undefined;
-        if (pkg.repository?.startsWith("http")) {
-          repositoryURL = pkg.repository;
-        } else if (pkg.repository?.startsWith("git+http")) {
-          repositoryURL = pkg.repository?.slice(4);
-        } else if (pkg.repository?.startsWith("git@")) {
-          repositoryURL =
-            "https://" +
-            pkg.repository
-              .slice(4)
-              .replace(":", "/")
-              .replace(/\.git$/, "");
-        } else if (
-          pkg.repository &&
-          /github:[\w-]+\/[\w-]+/.test(pkg.repository)
-        ) {
-          repositoryURL = `https://github.com/${pkg.repository.slice(7)}`;
-        } else if (pkg.repository && /[\w-]+\/[\w-]+/.test(pkg.repository)) {
-          // assume github username/repository
-          repositoryURL = `https://github.com/${pkg.repository}`;
-        } else {
-          // fallback to source url
-          // repositoryURL = pkg.source ?? "";
-        }
         return (
           <div key={key} className="collapse collapse-arrow bg-base-200">
             <input
@@ -66,15 +33,15 @@ export function ThirdPartyLicenses({ licenses }: { licenses: LicenseEntry[] }) {
                   {pkg.author}
                 </p>
               )}
-              {repositoryURL && (
+              {pkg.repository && (
                 <p className="mb-1">
                   <span className="opacity-60">Repository: </span>
                   <a
                     className="link link-info break-all"
-                    href={repositoryURL}
+                    href={pkg.repository}
                     target="_blank"
                   >
-                    {repositoryURL}
+                    {pkg.repository}
                   </a>
                 </p>
               )}
diff --git a/app/about/license/page.tsx b/app/about/license/page.tsx
index 5d5515f..9a5cb01 100644
--- a/app/about/license/page.tsx
+++ b/app/about/license/page.tsx
@@ -1,11 +1,9 @@
 import { Metadata } from "next";
 import licenseText from "@/../LICENSE?raw";
-import { LicenseEntry, ThirdPartyLicenses } from "./ThirdPartyLicenses";
-import { isCloudflare } from "@/lib/detectCloudflare";
-import { getCloudflareContext } from "@opennextjs/cloudflare";
-import { readFile } from "node:fs/promises";
-import { join } from "node:path";
+import { ThirdPartyLicenses } from "./ThirdPartyLicenses";
 import { StyledMarkdown } from "@/markdown/markdown";
+import { getLicenses, LicenseEntry } from "next-license-list";
+import { headers } from "next/headers";
 
 export const metadata: Metadata = {
   title: "ライセンス",
@@ -30,26 +28,8 @@ my.code(); は以下のオープンソースライブラリを使用していま
 `;
 
 export default async function LicensePage() {
-  let licenses: LicenseEntry[];
-  if (isCloudflare()) {
-    const cfAssets = getCloudflareContext().env.ASSETS;
-    const res = await cfAssets!.fetch(
-      `https://assets.local/_next/static/oss-licenses.json`
-    );
-    licenses = await res.json();
-  } else {
-    licenses = JSON.parse(
-      await readFile(
-        join(
-          process.cwd(),
-          process.env.NODE_ENV === "development"
-            ? ".next/dev/static/oss-licenses.json"
-            : ".next/static/oss-licenses.json"
-        ),
-        "utf-8"
-      )
-    );
-  }
+  await headers();
+  const licenses: LicenseEntry[] = await getLicenses();
 
   return (
     <div className="p-4 pb-16 w-full max-w-docs mx-auto">
diff --git a/next.config.ts b/next.config.ts
index ff1378c..3354e8c 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -2,13 +2,13 @@ import type { NextConfig } from "next";
 import { initOpenNextCloudflareForDev } from "@opennextjs/cloudflare";
 import { PyodidePlugin } from "@pyodide/webpack-plugin";
 import { version as pyodideVersion } from "pyodide/package.json";
-import LicensePlugin from "webpack-license-plugin";
 import { dirname } from "node:path";
 import { withSentryConfig } from "@sentry/nextjs";
+import { withLicense } from "next-license-list/config";
 
 initOpenNextCloudflareForDev();
 
-const nextConfig: NextConfig = {
+let nextConfig: NextConfig = {
   /* config options here */
   output: "standalone",
   experimental: {
@@ -59,7 +59,7 @@ const nextConfig: NextConfig = {
       },
     ];
   },
-  webpack: (config, { isServer }) => {
+  webpack: (config) => {
     config.plugins.push(
       new PyodidePlugin({
         // public/ 以下に書き出すと404
@@ -85,28 +85,6 @@ const nextConfig: NextConfig = {
       resourceQuery: /raw/,
       type: "asset/source",
     });
-    // クライアントビルドのみサードパーティライセンスを /_next/static/oss-licenses.json に出力
-    if (!isServer) {
-      config.plugins.push(
-        new LicensePlugin({
-          outputFilename: "static/oss-licenses.json",
-          includeNoticeText: true,
-          excludedPackageTest: (packageName /*, version*/) => {
-            return (
-              packageName.startsWith("@my-code") || packageName === "my-code"
-            );
-          },
-          licenseOverrides: {
-            "@better-auth/core@1.4.20": "MIT",
-            "@better-fetch/fetch@1.1.21": "MIT",
-          },
-          includePackages: () =>
-            ["tailwindcss", "daisyui", "@fontsource/m-plus-rounded-1c"].map(
-              (pkg) => dirname(import.meta.resolve(`${pkg}/package.json`))
-            ),
-        })
-      );
-    }
     return config;
   },
   async redirects() {
@@ -183,7 +161,21 @@ const nextConfig: NextConfig = {
   },
 };
 
-export default withSentryConfig(nextConfig, {
+nextConfig = withLicense(nextConfig, {
+  includeNoticeText: true,
+  excludedPackageTest: (packageName /*, version*/) => {
+    return packageName.startsWith("@my-code") || packageName === "my-code";
+  },
+  licenseOverrides: {
+    "@better-auth/core@1.4.20": "MIT",
+    "@better-fetch/fetch@1.1.21": "MIT",
+  },
+  includePackages: () =>
+    ["tailwindcss", "daisyui", "@fontsource/m-plus-rounded-1c"].map((pkg) =>
+      dirname(import.meta.resolve(`${pkg}/package.json`))
+    ),
+});
+nextConfig = withSentryConfig(nextConfig, {
   org: process.env.SENTRY_ORG,
   project: process.env.SENTRY_PROJECT,
   sentryUrl: process.env.SENTRY_URL,
@@ -210,3 +202,5 @@ export default withSentryConfig(nextConfig, {
     excludeReplayWorker: true,
   },
 });
+
+export default nextConfig;
diff --git a/package-lock.json b/package-lock.json
index 714008b..75af1d7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,6 +27,7 @@
         "js-yaml": "^4.1.1",
         "mocha": "^11.7.4",
         "next": "^16.2.3",
+        "next-license-list": "^1.0.0",
         "pg": "^8.16.3",
         "prismjs": "^1.30.0",
         "react": "^19",
@@ -5568,8 +5569,7 @@
       "optional": true,
       "os": [
         "android"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-android-arm64": {
       "version": "4.59.0",
@@ -5582,8 +5582,7 @@
       "optional": true,
       "os": [
         "android"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-darwin-arm64": {
       "version": "4.59.0",
@@ -5596,8 +5595,7 @@
       "optional": true,
       "os": [
         "darwin"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-darwin-x64": {
       "version": "4.59.0",
@@ -5610,8 +5608,7 @@
       "optional": true,
       "os": [
         "darwin"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-freebsd-arm64": {
       "version": "4.59.0",
@@ -5624,8 +5621,7 @@
       "optional": true,
       "os": [
         "freebsd"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-freebsd-x64": {
       "version": "4.59.0",
@@ -5638,8 +5634,7 @@
       "optional": true,
       "os": [
         "freebsd"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm-gnueabihf": {
       "version": "4.59.0",
@@ -5652,8 +5647,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm-musleabihf": {
       "version": "4.59.0",
@@ -5666,8 +5660,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm64-gnu": {
       "version": "4.59.0",
@@ -5680,8 +5673,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm64-musl": {
       "version": "4.59.0",
@@ -5694,8 +5686,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-loong64-gnu": {
       "version": "4.59.0",
@@ -5708,8 +5699,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-loong64-musl": {
       "version": "4.59.0",
@@ -5722,8 +5712,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-ppc64-gnu": {
       "version": "4.59.0",
@@ -5736,8 +5725,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-ppc64-musl": {
       "version": "4.59.0",
@@ -5750,8 +5738,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-riscv64-gnu": {
       "version": "4.59.0",
@@ -5764,8 +5751,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-riscv64-musl": {
       "version": "4.59.0",
@@ -5778,8 +5764,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-s390x-gnu": {
       "version": "4.59.0",
@@ -5792,8 +5777,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-x64-gnu": {
       "version": "4.59.0",
@@ -5806,8 +5790,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-x64-musl": {
       "version": "4.59.0",
@@ -5820,8 +5803,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-openbsd-x64": {
       "version": "4.59.0",
@@ -5834,8 +5816,7 @@
       "optional": true,
       "os": [
         "openbsd"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-openharmony-arm64": {
       "version": "4.59.0",
@@ -5848,8 +5829,7 @@
       "optional": true,
       "os": [
         "openharmony"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-arm64-msvc": {
       "version": "4.59.0",
@@ -5862,8 +5842,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-ia32-msvc": {
       "version": "4.59.0",
@@ -5876,8 +5855,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-x64-gnu": {
       "version": "4.59.0",
@@ -5890,8 +5868,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-x64-msvc": {
       "version": "4.59.0",
@@ -5904,8 +5881,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rtsao/scc": {
       "version": "1.1.0",
@@ -15554,7 +15530,6 @@
       "version": "4.18.1",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.18.1.tgz",
       "integrity": "sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q==",
-      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/lodash.clonedeep": {
@@ -17298,7 +17273,6 @@
       "version": "3.5.0",
       "resolved": "https://registry.npmjs.org/needle/-/needle-3.5.0.tgz",
       "integrity": "sha512-jaQyPKKk2YokHrEg+vFDYxXIHTCBgiZwSHOoVx/8V3GIBS8/VN6NdVRmg8q1ERtPkMvmOvebsgga4sAj5hls/w==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "iconv-lite": "^0.6.3",
@@ -17315,7 +17289,6 @@
       "version": "0.6.3",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
       "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "safer-buffer": ">= 2.1.2 < 3.0.0"
@@ -17403,6 +17376,15 @@
         }
       }
     },
+    "node_modules/next-license-list": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/next-license-list/-/next-license-list-1.0.0.tgz",
+      "integrity": "sha512-0hYMohlSJ9xjwePTVhjxl82PaJ/2I2mXFRENDm3sCqJ4QfECjdMwqNJbfWCeR+dND04T5PSnGXrapi9v53Xccg==",
+      "license": "0BSD",
+      "dependencies": {
+        "webpack-license-plugin": "^4"
+      }
+    },
     "node_modules/next/node_modules/postcss": {
       "version": "8.4.31",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
@@ -19496,7 +19478,6 @@
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.6.0.tgz",
       "integrity": "sha512-6R3J5M4AcbtLUdZmRv2SygeVaM7IhrLXu9BmnOGmmACak8fiUtOsYNWUS4uK7upbmHIBbLBeFeI//477BKLBzA==",
-      "dev": true,
       "license": "BlueOak-1.0.0",
       "engines": {
         "node": ">=11.0.0"
@@ -19999,14 +19980,12 @@
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.5.0.tgz",
       "integrity": "sha512-PiU42r+xO4UbUS1buo3LPJkjlO7430Xn5SVAhdpzzsPHsjbYVflnnFdATgabnLude+Cqu25p6N+g2lw/PFsa4w==",
-      "dev": true,
       "license": "CC-BY-3.0"
     },
     "node_modules/spdx-expression-parse": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.1.tgz",
       "integrity": "sha512-cbqHunsQWnJNE6KhVSMsMeH5H/L9EpymbzqTQ3uLwNCLZ1Q481oWaofqH7nO6V07xlXwY6PhQdQ2IedWx/ZK4Q==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "spdx-exceptions": "^2.1.0",
@@ -20017,7 +19996,6 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/spdx-expression-validate/-/spdx-expression-validate-2.0.0.tgz",
       "integrity": "sha512-b3wydZLM+Tc6CFvaRDBOF9d76oGIHNCLYFeHbftFXUWjnfZWganmDmvtM5sm1cRwJc/VDBMLyGGrsLFd1vOxbg==",
-      "dev": true,
       "license": "(MIT AND CC-BY-3.0)",
       "dependencies": {
         "spdx-expression-parse": "^3.0.0"
@@ -20027,7 +20005,6 @@
       "version": "3.0.23",
       "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.23.tgz",
       "integrity": "sha512-CWLcCCH7VLu13TgOH+r8p1O/Znwhqv/dbb6lqWy67G+pT1kHmeD/+V36AVb/vq8QMIQwVShJ6Ssl5FPh0fuSdw==",
-      "dev": true,
       "license": "CC0-1.0"
     },
     "node_modules/split2": {
@@ -21815,7 +21792,6 @@
       "os": [
         "aix"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21832,7 +21808,6 @@
       "os": [
         "android"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21849,7 +21824,6 @@
       "os": [
         "android"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21866,7 +21840,6 @@
       "os": [
         "android"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21883,7 +21856,6 @@
       "os": [
         "darwin"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21900,7 +21872,6 @@
       "os": [
         "darwin"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21917,7 +21888,6 @@
       "os": [
         "freebsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21934,7 +21904,6 @@
       "os": [
         "freebsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21951,7 +21920,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21968,7 +21936,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -21985,7 +21952,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22002,7 +21968,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22019,7 +21984,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22036,7 +22000,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22053,7 +22016,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22070,7 +22032,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22087,7 +22048,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22104,7 +22064,6 @@
       "os": [
         "netbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22121,7 +22080,6 @@
       "os": [
         "netbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22138,7 +22096,6 @@
       "os": [
         "openbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22155,7 +22112,6 @@
       "os": [
         "openbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22172,7 +22128,6 @@
       "os": [
         "openharmony"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22189,7 +22144,6 @@
       "os": [
         "sunos"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22206,7 +22160,6 @@
       "os": [
         "win32"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22223,7 +22176,6 @@
       "os": [
         "win32"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22240,7 +22192,6 @@
       "os": [
         "win32"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -22592,7 +22543,6 @@
       "version": "4.5.1",
       "resolved": "https://registry.npmjs.org/webpack-license-plugin/-/webpack-license-plugin-4.5.1.tgz",
       "integrity": "sha512-WbjMSMPHzFePCSQJqP0qFskGPSwdf3JxIoXa1SK3d1hCXQee7KUrIb+riyXUId71kcHOSyE12pTyrhMl1ozszA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "chalk": "^5.3.0",
diff --git a/package.json b/package.json
index 7a937fa..b0accfe 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "js-yaml": "^4.1.1",
     "mocha": "^11.7.4",
     "next": "^16.2.3",
+    "next-license-list": "^1.0.0",
     "pg": "^8.16.3",
     "prismjs": "^1.30.0",
     "react": "^19",