diff --git a/components/dashboard/links/Editor.vue b/components/dashboard/links/Editor.vue
index 4f7fb3b..d4eeddd 100644
--- a/components/dashboard/links/Editor.vue
+++ b/components/dashboard/links/Editor.vue
@@ -102,10 +102,12 @@ onMounted(() => {
   }
 })
 
+const { caseSensitive } = useRuntimeConfig()
+
 async function onSubmit(formData) {
   const link = {
     url: formData.url,
-    slug: formData.slug,
+    slug: caseSensitive ? formData.slug : formData.slug.toLowerCase(),
     ...(formData.optional || []),
     expiration: formData.optional?.expiration ? date2unix(formData.optional?.expiration, 'end') : undefined,
   }
diff --git a/nuxt.config.ts b/nuxt.config.ts
index 049414a..30beb15 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -60,6 +60,7 @@ export default defineNuxtConfig({
     dataset: 'sink',
     aiModel: '@cf/meta/llama-3.1-8b-instruct',
     aiPrompt: `You are a URL shortening assistant, please shorten the URL provided by the user into a SLUG. The SLUG information must come from the URL itself, do not make any assumptions. A SLUG is human-readable and should not exceed three words and can be validated using regular expressions {slugRegex} . Only the best one is returned, the format must be JSON reference {"slug": "example-slug"}`,
+    caseSensitive: false,
     public: {
       previewMode: '',
       slugDefaultLength: '6',
diff --git a/schemas/link.ts b/schemas/link.ts
index fe74492..763c650 100644
--- a/schemas/link.ts
+++ b/schemas/link.ts
@@ -2,10 +2,15 @@ import { z } from 'zod'
 import { customAlphabet } from 'nanoid'
 
 const { slugRegex } = useAppConfig()
+const { caseSensitive } = useRuntimeConfig()
 
 const slugDefaultLength = +useRuntimeConfig().public.slugDefaultLength
 
-export const nanoid = (length: number = slugDefaultLength) => customAlphabet('23456789abcdefghjkmnpqrstuvwxyz', length)
+export function nanoid(length: number = slugDefaultLength) {
+  return caseSensitive
+    ? customAlphabet('23456789abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ', length)
+    : customAlphabet('23456789abcdefghjkmnpqrstuvwxyz', length)
+}
 
 export const LinkSchema = z.object({
   id: z.string().trim().max(26).default(nanoid(10)),
diff --git a/server/middleware/1.redirect.ts b/server/middleware/1.redirect.ts
index 297098d..99ea21f 100644
--- a/server/middleware/1.redirect.ts
+++ b/server/middleware/1.redirect.ts
@@ -5,7 +5,7 @@ import type { LinkSchema } from '@/schemas/link'
 export default eventHandler(async (event) => {
   const { pathname: slug } = parsePath(event.path.replace(/^\/|\/$/g, '')) // remove leading and trailing slashes
   const { slugRegex, reserveSlug } = useAppConfig(event)
-  const { homeURL, linkCacheTtl, redirectWithQuery } = useRuntimeConfig(event)
+  const { homeURL, linkCacheTtl, redirectWithQuery, caseSensitive } = useRuntimeConfig(event)
   const { cloudflare } = event.context
 
   if (event.path === '/' && homeURL)
@@ -13,7 +13,11 @@ export default eventHandler(async (event) => {
 
   if (slug && !reserveSlug.includes(slug) && slugRegex.test(slug) && cloudflare) {
     const { KV } = cloudflare.env
-    const link: z.infer<typeof LinkSchema> | null = await KV.get(`link:${slug}`, { type: 'json', cacheTtl: linkCacheTtl })
+    const link: z.infer<typeof LinkSchema> | null = await KV.get(
+      `link:${caseSensitive ? slug : slug.toLowerCase()}`,
+      { type: 'json', cacheTtl: linkCacheTtl },
+    )
+
     if (link) {
       event.context.link = link
       try {