diff --git a/.changeset/eleven-eyes-sip.md b/.changeset/eleven-eyes-sip.md
new file mode 100644
index 000000000000..29ad8a5c0820
--- /dev/null
+++ b/.changeset/eleven-eyes-sip.md
@@ -0,0 +1,5 @@
+---
+"@astrojs/db": patch
+---
+
+Fix compatibility of @astrojs/db with Cloudflare
diff --git a/packages/db/src/runtime/index.ts b/packages/db/src/runtime/index.ts
index c4643b86a4ec..0cc91e57b4c7 100644
--- a/packages/db/src/runtime/index.ts
+++ b/packages/db/src/runtime/index.ts
@@ -1,4 +1,4 @@
-import { pathToFileURL } from 'url';
+import { pathToFileURL } from './utils.js';
 import { type ColumnBuilderBaseConfig, type ColumnDataType, sql } from 'drizzle-orm';
 import {
 	type IndexBuilder,
diff --git a/packages/db/src/runtime/utils.ts b/packages/db/src/runtime/utils.ts
index ac6cfeda6efb..098417fccbc9 100644
--- a/packages/db/src/runtime/utils.ts
+++ b/packages/db/src/runtime/utils.ts
@@ -1,5 +1,7 @@
 import { AstroError } from 'astro/errors';
 
+const isWindows = process?.platform === "win32";
+
 /**
  * Small wrapper around fetch that throws an error if the response is not OK. Allows for custom error handling as well through the onNotOK callback.
  */
@@ -22,3 +24,27 @@ export async function safeFetch(
 export class AstroDbError extends AstroError {
 	name = 'Astro DB Error';
 }
+
+export default function slash(path: string) {
+	const isExtendedLengthPath = path.startsWith('\\\\?\\');
+
+	if (isExtendedLengthPath) {
+		return path;
+	}
+
+	return path.replace(/\\/g, '/');
+}
+
+export function pathToFileURL(path: string): URL {
+	if(isWindows) {
+		let slashed = slash(path);
+		// Windows like C:/foo/bar
+		if(!slashed.startsWith('/')) {
+			slashed = '/' + slashed;
+		}
+		return new URL('file://' + slashed);
+	}
+
+	// Unix is easy
+	return new URL('file://' + path);
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 99bfc70f5021..6b3ce627a1a7 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -3922,7 +3922,7 @@ importers:
         version: 5.4.3
       vite:
         specifier: ^5.1.4
-        version: 5.2.7(@types/node@18.19.28)(sass@1.72.0)
+        version: 5.2.7
 
   packages/db/test/fixtures/basics:
     dependencies:
@@ -16729,6 +16729,41 @@ packages:
       svgo: 3.2.0
     dev: false
 
+  /vite@5.2.7:
+    resolution: {integrity: sha512-k14PWOKLI6pMaSzAuGtT+Cf0YmIx12z9YGon39onaJNy8DLBfBJrzg9FQEmkAM5lpHBZs9wksWAsyF/HkpEwJA==}
+    engines: {node: ^18.0.0 || >=20.0.0}
+    hasBin: true
+    peerDependencies:
+      '@types/node': ^18.0.0 || >=20.0.0
+      less: '*'
+      lightningcss: ^1.21.0
+      sass: '*'
+      stylus: '*'
+      sugarss: '*'
+      terser: ^5.4.0
+    peerDependenciesMeta:
+      '@types/node':
+        optional: true
+      less:
+        optional: true
+      lightningcss:
+        optional: true
+      sass:
+        optional: true
+      stylus:
+        optional: true
+      sugarss:
+        optional: true
+      terser:
+        optional: true
+    dependencies:
+      esbuild: 0.20.2
+      postcss: 8.4.38
+      rollup: 4.13.2
+    optionalDependencies:
+      fsevents: 2.3.3
+    dev: true
+
   /vite@5.2.7(@types/node@18.19.28)(sass@1.72.0):
     resolution: {integrity: sha512-k14PWOKLI6pMaSzAuGtT+Cf0YmIx12z9YGon39onaJNy8DLBfBJrzg9FQEmkAM5lpHBZs9wksWAsyF/HkpEwJA==}
     engines: {node: ^18.0.0 || >=20.0.0}