diff --git a/desktop/flipper-common/src/server-types.tsx b/desktop/flipper-common/src/server-types.tsx
index d15384066..633a26752 100644
--- a/desktop/flipper-common/src/server-types.tsx
+++ b/desktop/flipper-common/src/server-types.tsx
@@ -163,6 +163,22 @@ export type FlipperServerCommands = {
   ) => Promise<void>;
   'node-api-fs-stat': (path: string) => Promise<FSStatsLike>;
   'node-api-fs-readlink': (path: string) => Promise<string>;
+  'node-api-fs-readfile': (
+    path: string,
+    options?: {encoding?: BufferEncoding},
+  ) => Promise<string>;
+  'node-api-fs-readfile-binary': (
+    path: string,
+  ) => Promise<string /* base64 encoded */>;
+  'node-api-fs-writefile': (
+    path: string,
+    contents: string,
+    options?: {encoding?: BufferEncoding},
+  ) => Promise<void>;
+  'node-api-fs-writefile-binary': (
+    path: string,
+    base64contents: string,
+  ) => Promise<void>;
   /**
    * @throws ExecError
    */
diff --git a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
index 57eefc4e0..e1fee4975 100644
--- a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
+++ b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
@@ -66,6 +66,17 @@ export type RemoteServerContext = {
     copyFile(src: string, dest: string, flags?: number): Promise<void>;
     stat(path: string): Promise<FSStatsLike>;
     readlink(path: string): Promise<string>;
+    readFile(
+      path: string,
+      options?: {encoding?: BufferEncoding},
+    ): Promise<string>;
+    readFileBinary(path: string): Promise<Uint8Array>; // No Buffer, which is not a browser type
+    writeFile(
+      path: string,
+      contents: string,
+      options?: {encoding?: BufferEncoding},
+    ): Promise<void>;
+    writeFileBinary(path: string, contents: Uint8Array): Promise<void>;
   };
   downloadFile(
     url: string,
diff --git a/desktop/flipper-plugin/src/test-utils/test-utils.tsx b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
index 5f33d7225..fba257db7 100644
--- a/desktop/flipper-plugin/src/test-utils/test-utils.tsx
+++ b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
@@ -415,6 +415,10 @@ export function createMockFlipperLib(options?: StartPluginOptions): FlipperLib {
         constants: fsConstants,
         stat: jest.fn(),
         readlink: jest.fn(),
+        readFile: jest.fn(),
+        readFileBinary: jest.fn(),
+        writeFile: jest.fn(),
+        writeFileBinary: jest.fn(),
       },
       downloadFile: jest.fn(),
     },
diff --git a/desktop/flipper-server-core/src/FlipperServerImpl.tsx b/desktop/flipper-server-core/src/FlipperServerImpl.tsx
index b5cb2a7be..e6404bb50 100644
--- a/desktop/flipper-server-core/src/FlipperServerImpl.tsx
+++ b/desktop/flipper-server-core/src/FlipperServerImpl.tsx
@@ -48,8 +48,10 @@ import {commandDownloadFileStartFactory} from './commands/DownloadFile';
 import {promises} from 'fs';
 // Electron 11 runs on Node 12 which does not support fs.promises.rm
 import rm from 'rimraf';
+import assert from 'assert';
 
-const {access, copyFile, mkdir, unlink, stat, readlink} = promises;
+const {access, copyFile, mkdir, unlink, stat, readlink, readFile, writeFile} =
+  promises;
 
 export const SERVICE_FLIPPER = 'flipper.oAuthToken';
 
@@ -258,6 +260,22 @@ export class FlipperServerImpl implements FlipperServer {
       };
     },
     'node-api-fs-readlink': readlink,
+    'node-api-fs-readfile': async (path, options) => {
+      const contents = await readFile(path, options ?? 'utf8');
+      assert(
+        typeof contents === 'string',
+        `File ${path} was not read with a string encoding`,
+      );
+      return contents;
+    },
+    'node-api-fs-readfile-binary': async (path) => {
+      const contents = await readFile(path);
+      return Base64.fromUint8Array(contents);
+    },
+    'node-api-fs-writefile': (path, contents, options) =>
+      writeFile(path, contents, options ?? 'utf8'),
+    'node-api-fs-writefile-binary': (path, base64contents) =>
+      writeFile(path, Base64.toUint8Array(base64contents), 'binary'),
     // TODO: Do we need API to cancel an active download?
     'download-file-start': commandDownloadFileStartFactory(
       this.emit.bind(this),
diff --git a/desktop/flipper-ui-core/src/utils/flipperLibImplementation/index.tsx b/desktop/flipper-ui-core/src/utils/flipperLibImplementation/index.tsx
index ad529ca0d..7463071b5 100644
--- a/desktop/flipper-ui-core/src/utils/flipperLibImplementation/index.tsx
+++ b/desktop/flipper-ui-core/src/utils/flipperLibImplementation/index.tsx
@@ -29,6 +29,7 @@ import {DetailSidebarImpl} from '../../sandy-chrome/DetailSidebarImpl';
 import {RenderHost} from '../../RenderHost';
 import {setMenuEntries} from '../../reducers/connections';
 import {downloadFileFactory} from './downloadFile';
+import {Base64} from 'js-base64';
 
 export function initializeFlipperLibImplementation(
   renderHost: RenderHost,
@@ -115,6 +116,30 @@ export function initializeFlipperLibImplementation(
           renderHost.flipperServer.exec('node-api-fs-stat', path),
         readlink: async (path: string) =>
           renderHost.flipperServer.exec('node-api-fs-readlink', path),
+        readFile: (path, options) =>
+          renderHost.flipperServer.exec('node-api-fs-readfile', path, options),
+        readFileBinary: async (path) =>
+          Base64.toUint8Array(
+            await renderHost.flipperServer.exec(
+              'node-api-fs-readfile-binary',
+              path,
+            ),
+          ),
+        writeFile: (path, contents, options) =>
+          renderHost.flipperServer.exec(
+            'node-api-fs-writefile',
+            path,
+            contents,
+            options,
+          ),
+        writeFileBinary: async (path, contents) => {
+          const base64contents = Base64.fromUint8Array(contents);
+          return await renderHost.flipperServer.exec(
+            'node-api-fs-writefile-binary',
+            path,
+            base64contents,
+          );
+        },
       },
       downloadFile: downloadFileFactory(renderHost),
     },