diff --git a/package.json b/package.json
index d71f9503..ba607f4b 100644
--- a/package.json
+++ b/package.json
@@ -66,6 +66,7 @@
     "gemini-scrollbar": "github:matrix-org/gemini-scrollbar#91e1e566",
     "gfm.css": "^1.1.2",
     "highlight.js": "^9.13.1",
+    "localforage": "^1.7.3",
     "matrix-js-sdk": "5.1.1",
     "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#p2p",
     "olm": "https://packages.matrix.org/npm/olm/olm-3.1.4.tgz",
diff --git a/src/vector/dendrite-sw.js b/src/vector/dendrite-sw.js
index 90384254..4193558e 100644
--- a/src/vector/dendrite-sw.js
+++ b/src/vector/dendrite-sw.js
@@ -31,7 +31,8 @@ self.registration.addEventListener('updatefound', () => {
 
 self.importScripts(`${bundle_path}/wasm_exec.js`,
                    `${bundle_path}/go_http_bridge.js`,
-                   `${bundle_path}/sqlitejs.js`)
+                   `${bundle_path}/sqlitejs.js`,
+                   `${bundle_path}/localforage.js`)
 
 function initDendrite() {
     console.log(`dendrite-sw.js: v${version} SW init`)
diff --git a/webpack.config.js b/webpack.config.js
index 999a7ede..8d0edfe1 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -36,6 +36,7 @@ module.exports = (env, argv) => {
             "dendrite_sw": "./src/vector/dendrite-sw.js",
             "mobileguide": "./src/vector/mobile_guide/index.js",
             "sqlitejs": "./src/vector/sqlitejs.js",
+            "localforage": "./node_modules/localforage/dist/localforage.min.js",
             "go_http_bridge": "./node_modules/go-http-js-libp2p/js/bridge.js",
             "sql_wasm": "./node_modules/sql.js/dist/sql-wasm.wasm",
             "dendrite_wasm": "./src/vector/dendrite.wasm",
diff --git a/yarn.lock b/yarn.lock
index b2560ef4..aa29c411 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5740,6 +5740,11 @@ ignore@^5.1.4:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.1.4.tgz#84b7b3dbe64552b6ef0eca99f6743dbec6d97adf"
   integrity sha512-MzbUSahkTW1u7JpKKjY7LCARd1fU5W2rLdxlM4kdkayuCwZImjkpluF9CM1aLewYJguPDqewLam18Y6AU69A8A==
 
+immediate@~3.0.5:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
+  integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
+
 immutable@^3.7.4:
   version "3.8.2"
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-3.8.2.tgz#c2439951455bb39913daf281376f1530e104adf3"
@@ -7159,6 +7164,13 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lie@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
+  integrity sha1-mkNrLMd0bKWd56QfpGmz77dr2H4=
+  dependencies:
+    immediate "~3.0.5"
+
 lines-and-columns@^1.1.6:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/lines-and-columns/-/lines-and-columns-1.1.6.tgz#1c00c743b433cd0a4e80758f7b64a57440d9ff00"
@@ -7219,6 +7231,13 @@ loader-utils@^1.0.2, loader-utils@^1.1.0, loader-utils@^1.2.3, loader-utils@^1.4
     emojis-list "^3.0.0"
     json5 "^1.0.1"
 
+localforage@^1.7.3:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/localforage/-/localforage-1.7.3.tgz#0082b3ca9734679e1bd534995bdd3b24cf10f204"
+  integrity sha512-1TulyYfc4udS7ECSBT2vwJksWbkwwTX8BzeUIiq8Y07Riy7bDAAnxDaPU/tWyOVmQAcWJIEIFP9lPfBGqVoPgQ==
+  dependencies:
+    lie "3.1.1"
+
 locate-path@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"