diff --git a/index.bs b/index.bs
index 2a17d1e..302263e 100644
--- a/index.bs
+++ b/index.bs
@@ -2911,13 +2911,13 @@ and false otherwise.
 </div>
 
 
-The <dfn method for=IDBObjectStore>put(|value|, |key|)</dfn> method steps are to return the result of running [=add or put=] with [=/this=], |value|, |key| and the |no-overwrite flag| false.
+The <dfn method for=IDBObjectStore>put(|value|, |key|)</dfn> method steps are to return the result of running [=add or put a single record=] with [=/this=], |value|, |key| and the |no-overwrite flag| false.
 
-The <dfn method for=IDBObjectStore>add(|value|, |key|)</dfn> method steps are to return the result of running [=add or put=] with [=/this=], |value|, |key| and the |no-overwrite flag| true.
+The <dfn method for=IDBObjectStore>add(|value|, |key|)</dfn> method steps are to return the result of running [=add or put a single record=] with [=/this=], |value|, |key| and the |no-overwrite flag| true.
 
 <div algorithm>
 
-To <dfn>add or put</dfn> with |handle|, |value|, |key|, and |no-overwrite flag|, run these steps:
+To <dfn>add or put a single record</dfn> with |handle|, |value|, |key|, and |no-overwrite flag|, run these steps:
 
 1. Let |transaction| be |handle|'s
     [=object-store-handle/transaction=].
@@ -2988,6 +2988,98 @@ To <dfn>add or put</dfn> with |handle|, |value|, |key|, and |no-overwrite flag|,
 
 1. Return the result (an {{IDBRequest}}) of running [=asynchronously execute a request=] with |handle| and |operation|.
 
+</div>
+
+
+Issue: Define `putAll()` method(s) that use [=/add or put multiple records=].
+
+<div algorithm>
+
+To <dfn>add or put multiple records</dfn> with |handle|, |values|, |keys|, and |no-overwrite flag|, run these steps:
+
+1. [=/Assert=]: If |keys| is given, |values| [=list/size=] equals |keys| [=list/size=].
+
+1. Let |transaction| be |handle|'s
+    [=object-store-handle/transaction=].
+
+1. Let |store| be |handle|'s
+    [=object-store-handle/object store=].
+
+1. If |store| has been deleted,
+    [=throw=] an "{{InvalidStateError}}" {{DOMException}}.
+
+1. If |transaction|'s [=transaction/state=] is not [=transaction/active=],
+    then [=throw=] a "{{TransactionInactiveError}}" {{DOMException}}.
+
+1. If |transaction| is a [=read-only transaction=],
+    [=throw=] a "{{ReadOnlyError}}" {{DOMException}}.
+
+1. If |store| uses [=in-line keys=] and |keys| were given,
+    [=throw=] a "{{DataError}}" {{DOMException}}.
+
+1. If |store| uses [=out-of-line keys=] and has no [=key
+    generator=] and |keys| were not given, [=throw=] a
+    "{{DataError}}" {{DOMException}}.
+
+1. If |keys| were given, then:
+
+    1. Let |rs| be a new [=/list=].
+
+    1. [=list/For each=] |key| of |keys|:
+
+        1. Let |r| be the result of running [=convert a value to a key=] with |key|. Rethrow any exceptions.
+
+        1. If |r| is invalid, [=throw=] a "{{DataError}}" {{DOMException}}.
+
+        1. [=list/Append=] |r| to |rs|.
+
+    1. Let |keys| be |rs|.
+
+1. Let |targetRealm| be a user-agent defined [=Realm=].
+
+1. Let |clones| be a new [=/list=].
+
+1. [=list/For each=] |value| of |values|:
+
+    1. Let |clone| be a [=clone=] of |value| in |targetRealm| during |transaction|.
+        Rethrow any exceptions.
+
+        <details class=note>
+          <summary>Why create a copy of the value?</summary>
+          The value is serialized when stored. Treating it as a copy
+          here allows other algorithms in this specification to treat it as
+          an ECMAScript value, but implementations can optimize this
+          if the difference in behavior is not observable.
+        </details>
+
+    1. [=list/Append=] |clone| to |clones|.
+
+1. If |store| uses [=in-line keys=], then:
+
+    1. Let |keys| be a new [=/list=].
+
+    1. [=list/For each=] |clone| of |clones|:
+
+        1. Let |key| be undefined.
+
+        1. Let |kpk| be the result of running [=extract a key from a value using a key path=] with |clone| and |store|'s [=object-store/key path=]. Rethrow any exceptions.
+
+        1. If |kpk| is invalid, [=throw=] a "{{DataError}}" {{DOMException}}.
+
+        1. If |kpk| is not failure, let |key| be |kpk|.
+
+        1. Otherwise (|kpk| is failure):
+
+            1. If |store| does not have a [=key generator=], [=throw=] a "{{DataError}}" {{DOMException}}.
+
+            1. Otherwise, if [=check that a key could be injected into a value=] with |clone| and |store|'s [=object-store/key path=] return false, [=throw=] a "{{DataError}}" {{DOMException}}.
+
+        1. [=list/Append=] |key| to |keys|.
+
+1. Let |operation| be an algorithm to run [=store multiple records into an object store=] with |store|, |clones|, |keys|, and |no-overwrite flag|.
+
+1. Return the result (an {{IDBRequest}}) of running [=asynchronously execute a request=] with |handle| and |operation|.
+
 
 </div>
 
@@ -5698,6 +5790,25 @@ To <dfn>store a record into an object store</dfn> with
 
 </div>
 
+<div algorithm>
+
+To <dfn>store multiple records into an object store</dfn> with |store|, |values|, |keys|, and a |no-overwrite flag|, run these steps:
+
+1. [=/Assert=]: |values| [=list/size=] equals |keys| [=list/size=].
+
+1. Let |results| be a new [=/list=].
+
+1. [=list/For each=] |value| of |values| and |key| of |keys|, respectively:
+
+    1. Let |r| be the result of running the steps [=store a record into an object store=] with |store|, |value|, |key|, and |no-overwrite flag|.
+
+    1. If |r| is an error, then undo any changes made to |store| or associated [=/indexes=] by this algorithm, and return |r|.
+
+    1. [=list/Append=] |r| to |results|.
+
+1. Return |results|.
+
+</div>
 
 <!-- ============================================================ -->
 ## Object store retrieval operations ## {#object-store-retrieval-operation}