diff --git a/web/lib/firebase/storage.ts b/web/lib/firebase/storage.ts
index 4918a99c..fcf4422d 100644
--- a/web/lib/firebase/storage.ts
+++ b/web/lib/firebase/storage.ts
@@ -1,8 +1,8 @@
 import { ref, uploadBytesResumable, getDownloadURL } from 'firebase/storage'
+import imageCompression from 'browser-image-compression'
 import { nanoid } from 'nanoid'
 import { storage } from './init'
 
-// TODO: compress large images
 export const uploadImage = async (
   username: string,
   file: File,
@@ -12,6 +12,18 @@ export const uploadImage = async (
   const [, ext] = file.name.split('.')
   const filename = `${nanoid(10)}.${ext}`
   const storageRef = ref(storage, `user-images/${username}/${filename}`)
+
+  if (file.size > 20 * 1024 ** 2) {
+    return Promise.reject('File is over 20 MB.')
+  }
+
+  if (file.size > 1024 ** 2) {
+    file = await imageCompression(file, {
+      maxSizeMB: 1,
+      maxWidthOrHeight: 1920,
+    })
+  }
+
   const uploadTask = uploadBytesResumable(storageRef, file)
 
   let resolvePromise: (url: string) => void
diff --git a/web/package.json b/web/package.json
index a31dbffa..4fba3359 100644
--- a/web/package.json
+++ b/web/package.json
@@ -34,6 +34,7 @@
     "@tiptap/react": "2.0.0-beta.114",
     "@tiptap/starter-kit": "2.0.0-beta.190",
     "algoliasearch": "4.13.0",
+    "browser-image-compression": "2.0.0",
     "clsx": "1.1.1",
     "cors": "2.8.5",
     "daisyui": "1.16.4",
diff --git a/yarn.lock b/yarn.lock
index dea9e29b..9334b737 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4270,6 +4270,13 @@ broadcast-channel@^3.4.1:
     rimraf "3.0.2"
     unload "2.2.0"
 
+browser-image-compression@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/browser-image-compression/-/browser-image-compression-2.0.0.tgz#f421381a76d474d4da7dcd82810daf595b09bef6"
+  integrity sha512-kBlkZo13yOOfcmrPW0M0K/UdZPogIQj2gRvXIM3FktAnfW6VRq9aY2RI+F6O0x6DMj1Xm+WLGgWcFK8Fu/ddnw==
+  dependencies:
+    uzip "0.20201231.0"
+
 browserslist@^4.0.0, browserslist@^4.14.5, browserslist@^4.16.6, browserslist@^4.18.1, browserslist@^4.20.2, browserslist@^4.20.3:
   version "4.20.3"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.20.3.tgz#eb7572f49ec430e054f56d52ff0ebe9be915f8bf"
@@ -11630,6 +11637,11 @@ uuid@^8.0.0, uuid@^8.3.2:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.2.tgz#80d5b5ced271bb9af6c445f21a1a04c606cefbe2"
   integrity sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==
 
+uzip@0.20201231.0:
+  version "0.20201231.0"
+  resolved "https://registry.yarnpkg.com/uzip/-/uzip-0.20201231.0.tgz#9e64b065b9a8ebf26eb7583fe8e77e1d9a15ed14"
+  integrity sha512-OZeJfZP+R0z9D6TmBgLq2LHzSSptGMGDGigGiEe0pr8UBe/7fdflgHlHBNDASTXB5jnFuxHpNaJywSg8YFeGng==
+
 v8-compile-cache-lib@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz#6336e8d71965cb3d35a1bbb7868445a7c05264bf"