diff --git a/src/app/components/AccountDataEditor.tsx b/src/app/components/AccountDataEditor.tsx
index 2dbaf1f1..3be3911c 100644
--- a/src/app/components/AccountDataEditor.tsx
+++ b/src/app/components/AccountDataEditor.tsx
@@ -27,6 +27,7 @@ import { useTextAreaCodeEditor } from '../hooks/useTextAreaCodeEditor';
 const EDITOR_INTENT_SPACE_COUNT = 2;
 
 export type AccountDataSubmitCallback = (type: string, content: object) => Promise<void>;
+export type AccountDataDeleteCallback = (type: string) => Promise<void>;
 
 type AccountDataInfo = {
   type: string;
@@ -83,8 +84,7 @@ function AccountDataEdit({
 
     if (
       !typeStr ||
-      parsedContent === null ||
-      defaultContent === JSON.stringify(parsedContent, null, EDITOR_INTENT_SPACE_COUNT)
+      parsedContent === null
     ) {
       return;
     }
@@ -121,7 +121,7 @@ function AccountDataEdit({
       aria-disabled={submitting}
     >
       <Box shrink="No" direction="Column" gap="100">
-        <Text size="L400">Account Data</Text>
+        <Text size="L400">Field Name</Text>
         <Box gap="300">
           <Box grow="Yes" direction="Column">
             <Input
@@ -196,8 +196,21 @@ type AccountDataViewProps = {
   type: string;
   defaultContent: string;
   onEdit: () => void;
+  requestClose: () => void;
+  submitDelete?: AccountDataDeleteCallback;
 };
-function AccountDataView({ type, defaultContent, onEdit }: AccountDataViewProps) {
+function AccountDataView({ type, defaultContent, onEdit, requestClose, submitDelete }: AccountDataViewProps) {
+  const [deleteState, deleteCallback] = useAsyncCallback<void, MatrixError, []>(useCallback(
+    async () => {
+      if (submitDelete !== undefined) {
+        await submitDelete(type);
+        requestClose();
+      }
+    },
+    [type, submitDelete, requestClose],
+  ));
+  const deleting = deleteState.status === AsyncStatus.Loading;
+
   return (
     <Box
       direction="Column"
@@ -208,7 +221,7 @@ function AccountDataView({ type, defaultContent, onEdit }: AccountDataViewProps)
     >
       <Box shrink="No" gap="300" alignItems="End">
         <Box grow="Yes" direction="Column" gap="100">
-          <Text size="L400">Account Data</Text>
+          <Text size="L400">Field Name</Text>
           <Input
             variant="SurfaceVariant"
             size="400"
@@ -221,6 +234,18 @@ function AccountDataView({ type, defaultContent, onEdit }: AccountDataViewProps)
         <Button variant="Secondary" size="400" radii="300" onClick={onEdit}>
           <Text size="B400">Edit</Text>
         </Button>
+        {submitDelete && (
+          <Button
+            variant="Critical"
+            size="400"
+            radii="300"
+            disabled={deleting}
+            before={deleting && <Spinner variant="Critical" fill="Solid" size="300" />}
+            onClick={deleteCallback}
+          >
+            <Text size="B400">Delete</Text>
+          </Button>
+        )}
       </Box>
       <Box grow="Yes" direction="Column" gap="100">
         <Text size="L400">JSON Content</Text>
@@ -243,8 +268,9 @@ function AccountDataView({ type, defaultContent, onEdit }: AccountDataViewProps)
 
 export type AccountDataEditorProps = {
   type?: string;
-  content?: object;
+  content?: unknown;
   submitChange: AccountDataSubmitCallback;
+  submitDelete?: AccountDataDeleteCallback;
   requestClose: () => void;
 };
 
@@ -252,6 +278,7 @@ export function AccountDataEditor({
   type,
   content,
   submitChange,
+  submitDelete,
   requestClose,
 }: AccountDataEditorProps) {
   const [data, setData] = useState<AccountDataInfo>({
@@ -314,6 +341,8 @@ export function AccountDataEditor({
             type={data.type}
             defaultContent={contentJSONStr}
             onEdit={() => setEdit(true)}
+            requestClose={requestClose}
+            submitDelete={submitDelete}
           />
         )}
       </Box>
diff --git a/src/app/features/settings/account/Profile.tsx b/src/app/features/settings/account/Profile.tsx
index f3fcadbf..71f5773f 100644
--- a/src/app/features/settings/account/Profile.tsx
+++ b/src/app/features/settings/account/Profile.tsx
@@ -148,7 +148,7 @@ export function Profile() {
           // once the profile request completes
           await refreshExtendedProfile();
 
-          // synthesise a profile update for ourselves to update our name and avatr in the rest
+          // synthesize a profile update for ourselves to update our name and avatar in the rest
           // of the UI. code copied from matrix-js-sdk
           const user = mx.getUser(userId);
           if (user) {
diff --git a/src/app/features/settings/developer-tools/AccountData.tsx b/src/app/features/settings/developer-tools/AccountData.tsx
deleted file mode 100644
index 8bccb62e..00000000
--- a/src/app/features/settings/developer-tools/AccountData.tsx
+++ /dev/null
@@ -1,100 +0,0 @@
-import React, { useCallback, useState } from 'react';
-import { Box, Text, Icon, Icons, Button, MenuItem } from 'folds';
-import { SequenceCard } from '../../../components/sequence-card';
-import { SequenceCardStyle } from '../styles.css';
-import { SettingTile } from '../../../components/setting-tile';
-import { useMatrixClient } from '../../../hooks/useMatrixClient';
-import { useAccountDataCallback } from '../../../hooks/useAccountDataCallback';
-import { CutoutCard } from '../../../components/cutout-card';
-
-type AccountDataProps = {
-  expand: boolean;
-  onExpandToggle: (expand: boolean) => void;
-  onSelect: (type: string | null) => void;
-};
-export function AccountData({ expand, onExpandToggle, onSelect }: AccountDataProps) {
-  const mx = useMatrixClient();
-  const [accountDataTypes, setAccountDataKeys] = useState(() =>
-    Array.from(mx.store.accountData.keys())
-  );
-
-  useAccountDataCallback(
-    mx,
-    useCallback(() => {
-      setAccountDataKeys(Array.from(mx.store.accountData.keys()));
-    }, [mx])
-  );
-
-  return (
-    <Box direction="Column" gap="100">
-      <Text size="L400">Account Data</Text>
-      <SequenceCard
-        className={SequenceCardStyle}
-        variant="SurfaceVariant"
-        direction="Column"
-        gap="400"
-      >
-        <SettingTile
-          title="Global"
-          description="Data stored in your global account data."
-          after={
-            <Button
-              onClick={() => onExpandToggle(!expand)}
-              variant="Secondary"
-              fill="Soft"
-              size="300"
-              radii="300"
-              outlined
-              before={
-                <Icon src={expand ? Icons.ChevronTop : Icons.ChevronBottom} size="100" filled />
-              }
-            >
-              <Text size="B300">{expand ? 'Collapse' : 'Expand'}</Text>
-            </Button>
-          }
-        />
-        {expand && (
-          <Box direction="Column" gap="100">
-            <Box justifyContent="SpaceBetween">
-              <Text size="L400">Events</Text>
-              <Text size="L400">Total: {accountDataTypes.length}</Text>
-            </Box>
-            <CutoutCard>
-              <MenuItem
-                variant="Surface"
-                fill="None"
-                size="300"
-                radii="0"
-                before={<Icon size="50" src={Icons.Plus} />}
-                onClick={() => onSelect(null)}
-              >
-                <Box grow="Yes">
-                  <Text size="T200" truncate>
-                    Add New
-                  </Text>
-                </Box>
-              </MenuItem>
-              {accountDataTypes.sort().map((type) => (
-                <MenuItem
-                  key={type}
-                  variant="Surface"
-                  fill="None"
-                  size="300"
-                  radii="0"
-                  after={<Icon size="50" src={Icons.ChevronRight} />}
-                  onClick={() => onSelect(type)}
-                >
-                  <Box grow="Yes">
-                    <Text size="T200" truncate>
-                      {type}
-                    </Text>
-                  </Box>
-                </MenuItem>
-              ))}
-            </CutoutCard>
-          </Box>
-        )}
-      </SequenceCard>
-    </Box>
-  );
-}
diff --git a/src/app/features/settings/developer-tools/AccountDataList.tsx b/src/app/features/settings/developer-tools/AccountDataList.tsx
new file mode 100644
index 00000000..71b1cf76
--- /dev/null
+++ b/src/app/features/settings/developer-tools/AccountDataList.tsx
@@ -0,0 +1,86 @@
+import React from 'react';
+import { Box, Text, Icon, Icons, Button, MenuItem } from 'folds';
+import { SequenceCard } from '../../../components/sequence-card';
+import { SequenceCardStyle } from '../styles.css';
+import { SettingTile } from '../../../components/setting-tile';
+import { CutoutCard } from '../../../components/cutout-card';
+
+type AccountDataListProps = {
+  title?: string;
+  description?: string;
+  expand: boolean;
+  setExpand: (expand: boolean) => void;
+  types: string[];
+  onSelect: (type: string | null) => void;
+};
+export function AccountDataList({ types, onSelect, expand, setExpand, title, description }: AccountDataListProps) {
+  return (
+    <SequenceCard
+      className={SequenceCardStyle}
+      variant="SurfaceVariant"
+      direction="Column"
+      gap="400"
+    >
+      <SettingTile
+        title={title}
+        description={description}
+        after={
+          <Button
+            onClick={() => setExpand(!expand)}
+            variant="Secondary"
+            fill="Soft"
+            size="300"
+            radii="300"
+            outlined
+            before={
+              <Icon src={expand ? Icons.ChevronTop : Icons.ChevronBottom} size="100" filled />
+            }
+          >
+            <Text size="B300">{expand ? 'Collapse' : 'Expand'}</Text>
+          </Button>
+        }
+      />
+      {expand && (
+        <Box direction="Column" gap="100">
+          <Box justifyContent="SpaceBetween">
+            <Text size="L400">Fields</Text>
+            <Text size="L400">Total: {types.length}</Text>
+          </Box>
+          <CutoutCard>
+            <MenuItem
+              variant="Surface"
+              fill="None"
+              size="300"
+              radii="0"
+              before={<Icon size="50" src={Icons.Plus} />}
+              onClick={() => onSelect(null)}
+            >
+              <Box grow="Yes">
+                <Text size="T200" truncate>
+                  Add New
+                </Text>
+              </Box>
+            </MenuItem>
+            {types.sort().map((type) => (
+              <MenuItem
+                key={type}
+                variant="Surface"
+                fill="None"
+                size="300"
+                radii="0"
+                after={<Icon size="50" src={Icons.ChevronRight} />}
+                onClick={() => onSelect(type)}
+              >
+                <Box grow="Yes">
+                  <Text size="T200" truncate>
+                    {type}
+                  </Text>
+                </Box>
+              </MenuItem>
+            ))}
+          </CutoutCard>
+        </Box>
+      )}
+    </SequenceCard>
+  );
+}
diff --git a/src/app/features/settings/developer-tools/DevelopTools.tsx b/src/app/features/settings/developer-tools/DevelopTools.tsx
index a3f04567..5ee86820 100644
--- a/src/app/features/settings/developer-tools/DevelopTools.tsx
+++ b/src/app/features/settings/developer-tools/DevelopTools.tsx
@@ -1,5 +1,6 @@
 import React, { useCallback, useState } from 'react';
 import { Box, Text, IconButton, Icon, Icons, Scroll, Switch, Button } from 'folds';
+import { AccountDataEvents } from 'matrix-js-sdk';
 import { Page, PageContent, PageHeader } from '../../../components/page';
 import { SequenceCard } from '../../../components/sequence-card';
 import { SequenceCardStyle } from '../styles.css';
@@ -8,117 +9,187 @@ import { useSetting } from '../../../state/hooks/settings';
 import { settingsAtom } from '../../../state/settings';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
 import {
+  AccountDataDeleteCallback,
   AccountDataEditor,
   AccountDataSubmitCallback,
 } from '../../../components/AccountDataEditor';
 import { copyToClipboard } from '../../../utils/dom';
-import { AccountData } from './AccountData';
+import { AccountDataList } from './AccountDataList';
+import { useExtendedProfile } from '../../../hooks/useExtendedProfile';
+import { useAccountDataCallback } from '../../../hooks/useAccountDataCallback';
+
+type DeveloperToolsPage =
+  | { name: 'index' }
+  | { name: 'account-data'; type: string | null }
+  | { name: 'profile-field'; type: string | null };
 
 type DeveloperToolsProps = {
   requestClose: () => void;
 };
 export function DeveloperTools({ requestClose }: DeveloperToolsProps) {
   const mx = useMatrixClient();
+  const userId = mx.getUserId() as string;
+
+  const [accountDataTypes, setAccountDataKeys] = useState(() =>
+    Array.from(mx.store.accountData.keys())
+  );
+
+  useAccountDataCallback(
+    mx,
+    useCallback(() => {
+      setAccountDataKeys(Array.from(mx.store.accountData.keys()));
+    }, [mx])
+  );
+  const [extendedProfile, refreshExtendedProfile] = useExtendedProfile(userId);
+
   const [developerTools, setDeveloperTools] = useSetting(settingsAtom, 'developerTools');
-  const [expand, setExpend] = useState(false);
-  const [accountDataType, setAccountDataType] = useState<string | null>();
+  const [page, setPage] = useState<DeveloperToolsPage>({ name: 'index' });
+  const [globalExpand, setGlobalExpand] = useState(false);
+  const [profileExpand, setProfileExpand] = useState(false);
 
   const submitAccountData: AccountDataSubmitCallback = useCallback(
     async (type, content) => {
-      await mx.setAccountData(type, content);
+      await mx.setAccountData(type as keyof AccountDataEvents, content);
     },
     [mx]
   );
 
-  if (accountDataType !== undefined) {
-    return (
-      <AccountDataEditor
-        type={accountDataType ?? undefined}
-        content={accountDataType ? mx.getAccountData(accountDataType)?.getContent() : undefined}
-        submitChange={submitAccountData}
-        requestClose={() => setAccountDataType(undefined)}
-      />
-    );
-  }
-
-  return (
-    <Page>
-      <PageHeader outlined={false}>
-        <Box grow="Yes" gap="200">
-          <Box grow="Yes" alignItems="Center" gap="200">
-            <Text size="H3" truncate>
-              Developer Tools
-            </Text>
-          </Box>
-          <Box shrink="No">
-            <IconButton onClick={requestClose} variant="Surface">
-              <Icon src={Icons.Cross} />
-            </IconButton>
-          </Box>
-        </Box>
-      </PageHeader>
-      <Box grow="Yes">
-        <Scroll hideTrack visibility="Hover">
-          <PageContent>
-            <Box direction="Column" gap="700">
-              <Box direction="Column" gap="100">
-                <Text size="L400">Options</Text>
-                <SequenceCard
-                  className={SequenceCardStyle}
-                  variant="SurfaceVariant"
-                  direction="Column"
-                  gap="400"
-                >
-                  <SettingTile
-                    title="Enable Developer Tools"
-                    after={
-                      <Switch
-                        variant="Primary"
-                        value={developerTools}
-                        onChange={setDeveloperTools}
-                      />
-                    }
-                  />
-                </SequenceCard>
-                {developerTools && (
-                  <SequenceCard
-                    className={SequenceCardStyle}
-                    variant="SurfaceVariant"
-                    direction="Column"
-                    gap="400"
-                  >
-                    <SettingTile
-                      title="Access Token"
-                      description="Copy access token to clipboard."
-                      after={
-                        <Button
-                          onClick={() =>
-                            copyToClipboard(mx.getAccessToken() ?? '<NO_ACCESS_TOKEN_FOUND>')
-                          }
-                          variant="Secondary"
-                          fill="Soft"
-                          size="300"
-                          radii="300"
-                          outlined
-                        >
-                          <Text size="B300">Copy</Text>
-                        </Button>
-                      }
-                    />
-                  </SequenceCard>
-                )}
-              </Box>
-              {developerTools && (
-                <AccountData
-                  expand={expand}
-                  onExpandToggle={setExpend}
-                  onSelect={setAccountDataType}
-                />
-              )}
-            </Box>
-          </PageContent>
-        </Scroll>
-      </Box>
-    </Page>
+  const submitProfileField: AccountDataSubmitCallback = useCallback(
+    async (type, content) => {
+      await mx.setExtendedProfileProperty(type, content);
+      await refreshExtendedProfile();
+    },
+    [mx, refreshExtendedProfile]
   );
+
+  const deleteProfileField: AccountDataDeleteCallback = useCallback(
+    async (type) => {
+      await mx.deleteExtendedProfileProperty(type);
+      await refreshExtendedProfile();
+    },
+    [mx, refreshExtendedProfile]
+  );
+
+  const handleClose = useCallback(() => setPage({ name: 'index' }), [setPage]);
+
+  switch (page.name) {
+    case 'account-data':
+      return (
+        <AccountDataEditor
+          type={page.type ?? undefined}
+          content={page.type ? mx.getAccountData(page.type as keyof AccountDataEvents)?.getContent() : undefined}
+          submitChange={submitAccountData}
+          requestClose={handleClose}
+        />
+      );
+
+    case 'profile-field':
+      return (
+        <AccountDataEditor
+          type={page.type ?? undefined}
+          content={page.type ? extendedProfile?.[page.type] : undefined}
+          submitChange={submitProfileField}
+          submitDelete={deleteProfileField}
+          requestClose={handleClose}
+        />
+      );
+
+    default:
+      return (
+        <Page>
+          <PageHeader outlined={false}>
+            <Box grow="Yes" gap="200">
+              <Box grow="Yes" alignItems="Center" gap="200">
+                <Text size="H3" truncate>
+                  Developer Tools
+                </Text>
+              </Box>
+              <Box shrink="No">
+                <IconButton onClick={requestClose} variant="Surface">
+                  <Icon src={Icons.Cross} />
+                </IconButton>
+              </Box>
+            </Box>
+          </PageHeader>
+          <Box grow="Yes">
+            <Scroll hideTrack visibility="Hover">
+              <PageContent>
+                <Box direction="Column" gap="700">
+                  <Box direction="Column" gap="100">
+                    <Text size="L400">Options</Text>
+                    <SequenceCard
+                      className={SequenceCardStyle}
+                      variant="SurfaceVariant"
+                      direction="Column"
+                      gap="400"
+                    >
+                      <SettingTile
+                        title="Enable Developer Tools"
+                        after={
+                          <Switch
+                            variant="Primary"
+                            value={developerTools}
+                            onChange={setDeveloperTools}
+                          />
+                        }
+                      />
+                    </SequenceCard>
+                    {developerTools && (
+                      <SequenceCard
+                        className={SequenceCardStyle}
+                        variant="SurfaceVariant"
+                        direction="Column"
+                        gap="400"
+                      >
+                        <SettingTile
+                          title="Access Token"
+                          description="Copy access token to clipboard."
+                          after={
+                            <Button
+                              onClick={() =>
+                                copyToClipboard(mx.getAccessToken() ?? '<NO_ACCESS_TOKEN_FOUND>')
+                              }
+                              variant="Secondary"
+                              fill="Soft"
+                              size="300"
+                              radii="300"
+                              outlined
+                            >
+                              <Text size="B300">Copy</Text>
+                            </Button>
+                          }
+                        />
+                      </SequenceCard>
+                    )}
+                  </Box>
+                  {developerTools && (
+                    <Box direction="Column" gap="100">
+                      <Text size="L400">Account Data</Text>
+                      <AccountDataList
+                        title="Account"
+                        description="Private data stored in your account."
+                        expand={globalExpand}
+                        setExpand={setGlobalExpand}
+                        types={accountDataTypes}
+                        onSelect={(type) => setPage({ name: 'account-data', type })}
+                      />
+                      {extendedProfile && (
+                        <AccountDataList
+                          title="Profile"
+                          description="Public data attached to your Matrix profile."
+                          expand={profileExpand}
+                          setExpand={setProfileExpand}
+                          types={Object.keys(extendedProfile)}
+                          onSelect={(type) => setPage({ name: 'profile-field', type })}
+                        />
+                      )}
+                    </Box>
+                  )}
+                </Box>
+              </PageContent>
+            </Scroll>
+          </Box>
+        </Page>
+      );
+  }
 }