diff --git a/package-lock.json b/package-lock.json
index 84f9b3f..e91ec1f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
         "@ipld/dag-pb": "^2.1.18",
         "@multiformats/blake2": "^1.0.11",
         "browser-readablestream-to-it": "^2.0.4",
+        "idb": "^7.1.1",
         "ipfs-unixfs-exporter": "https://gitpkg.now.sh/filecoin-saturn/js-ipfs-unixfs/packages/ipfs-unixfs-exporter?build",
         "multiformats": "^12.1.1"
       },
@@ -2422,6 +2423,11 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/idb": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/idb/-/idb-7.1.1.tgz",
+      "integrity": "sha512-gchesWBzyvGHRO9W8tzUWFDycow5gwjvFKfyV9FF32Y7F50yZMp7mP+T2mJIWFx49zicqyC4uefHM17o6xKIVQ=="
+    },
     "node_modules/ignore": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.2.0.tgz",
@@ -6246,6 +6252,11 @@
         "has-symbols": "^1.0.2"
       }
     },
+    "idb": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/idb/-/idb-7.1.1.tgz",
+      "integrity": "sha512-gchesWBzyvGHRO9W8tzUWFDycow5gwjvFKfyV9FF32Y7F50yZMp7mP+T2mJIWFx49zicqyC4uefHM17o6xKIVQ=="
+    },
     "ignore": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.2.0.tgz",
diff --git a/package.json b/package.json
index 0970456..81d1899 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "@ipld/dag-pb": "^2.1.18",
     "@multiformats/blake2": "^1.0.11",
     "browser-readablestream-to-it": "^2.0.4",
+    "idb": "^7.1.1",
     "ipfs-unixfs-exporter": "https://gitpkg.now.sh/filecoin-saturn/js-ipfs-unixfs/packages/ipfs-unixfs-exporter?build",
     "multiformats": "^12.1.1"
   },
diff --git a/src/index.js b/src/index.js
index 4729a1a..8dcd443 100644
--- a/src/index.js
+++ b/src/index.js
@@ -3,6 +3,7 @@ import { CID } from 'multiformats'
 import { extractVerifiedContent } from './utils/car.js'
 import { asAsyncIterable, asyncIteratorToBuffer } from './utils/itr.js'
 import { randomUUID } from './utils/uuid.js'
+import { memoryStorage } from './storage/index.js'
 
 class Saturn {
   /**
@@ -12,6 +13,7 @@ class Saturn {
    * @param {string} [opts.cdnURL=saturn.ms]
    * @param {number} [opts.connectTimeout=5000]
    * @param {number} [opts.downloadTimeout=0]
+   * @param {import('./utils/storage.js').Storage} [opts.storage]
    */
   constructor (opts = {}) {
     this.opts = Object.assign({}, {
@@ -20,9 +22,11 @@ class Saturn {
       logURL: 'https://twb3qukm2i654i3tnvx36char40aymqq.lambda-url.us-west-2.on.aws/',
       connectTimeout: 5_000,
       downloadTimeout: 0
+
     }, opts)
 
     this.logs = []
+    this.storage = this.opts.storage || memoryStorage()
     this.reportingLogs = process?.env?.NODE_ENV !== 'development'
     this.hasPerformanceAPI = typeof window !== 'undefined' && window?.performance
     if (this.reportingLogs && this.hasPerformanceAPI) {
diff --git a/src/storage/index.js b/src/storage/index.js
new file mode 100644
index 0000000..a8b52b8
--- /dev/null
+++ b/src/storage/index.js
@@ -0,0 +1,16 @@
+// @ts-check
+
+import { indexedDbStorage } from './indexed-db-storage.js'
+import { memoryStorage } from './memory-storage.js'
+
+/**
+ * @typedef {object} Storage
+ * @property {function(string):Promise<any>} get - Retrieves the value associated with the key.
+ * @property {function(string,any):Promise<void>} set - Sets a new value for the key.
+ * @property {function(string):Promise<any>} delete - Deletes the value associated with the key.
+ */
+
+export {
+  indexedDbStorage,
+  memoryStorage
+}
diff --git a/src/storage/indexed-db-storage.js b/src/storage/indexed-db-storage.js
new file mode 100644
index 0000000..477ff1d
--- /dev/null
+++ b/src/storage/indexed-db-storage.js
@@ -0,0 +1,29 @@
+// @ts-check
+
+import { openDB } from 'idb'
+
+const DEFAULT_IDB_VERSION = 1
+const DEFAULT_IDB_STORAGE_NAME = 'saturn-db'
+const DEFAULT_SATURN_STORAGE_NAME = 'saturn-client'
+
+/**
+ * @function indexedDbStorage
+ * @returns {import('./index.js').Storage}
+ */
+export function indexedDbStorage () {
+  const indexedDbExists = (typeof window !== 'undefined') && window?.indexedDB
+  let dbPromise
+  if (indexedDbExists) {
+    dbPromise = openDB(DEFAULT_IDB_STORAGE_NAME, DEFAULT_IDB_VERSION, {
+      upgrade (db) {
+        db.createObjectStore(DEFAULT_SATURN_STORAGE_NAME)
+      }
+    })
+  }
+
+  return {
+    get: async (key) => indexedDbExists && (await dbPromise).get(DEFAULT_SATURN_STORAGE_NAME, key),
+    set: async (key, value) => indexedDbExists && (await dbPromise).put(DEFAULT_SATURN_STORAGE_NAME, value, key),
+    delete: async (key) => indexedDbExists && (await dbPromise).delete(DEFAULT_SATURN_STORAGE_NAME, key)
+  }
+}
diff --git a/src/storage/memory-storage.js b/src/storage/memory-storage.js
new file mode 100644
index 0000000..7a11c8e
--- /dev/null
+++ b/src/storage/memory-storage.js
@@ -0,0 +1,15 @@
+// @ts-check
+
+/**
+ * @function memoryStorage
+ * @returns {import('./index.js').Storage}
+ */
+export function memoryStorage () {
+  const storageObject = {}
+
+  return {
+    get: async (key) => storageObject[key],
+    set: async (key, value) => { storageObject[key] = value },
+    delete: async (key) => { delete storageObject[key] }
+  }
+}