diff --git a/lib/types/store-ops-types.js b/lib/types/store-ops-types.js
index 0a1c999a3..46c834d98 100644
--- a/lib/types/store-ops-types.js
+++ b/lib/types/store-ops-types.js
@@ -1,11 +1,26 @@
 // @flow
 
-import type { DraftStoreOperation } from './draft-types.js';
-import type { MessageStoreOperation } from './message-types.js';
-import type { ThreadStoreOperation } from './thread-types.js';
+import type {
+  DraftStoreOperation,
+  ClientDBDraftStoreOperation,
+} from './draft-types.js';
+import type {
+  ClientDBMessageStoreOperation,
+  MessageStoreOperation,
+} from './message-types.js';
+import type {
+  ClientDBThreadStoreOperation,
+  ThreadStoreOperation,
+} from './thread-types.js';
 
 export type StoreOperations = {
   +draftStoreOperations: $ReadOnlyArray<DraftStoreOperation>,
   +threadStoreOperations: $ReadOnlyArray<ThreadStoreOperation>,
   +messageStoreOperations: $ReadOnlyArray<MessageStoreOperation>,
 };
+
+export type ClientDBStoreOperations = {
+  +draftStoreOperations?: $ReadOnlyArray<ClientDBDraftStoreOperation>,
+  +threadStoreOperations?: $ReadOnlyArray<ClientDBThreadStoreOperation>,
+  +messageStoreOperations?: $ReadOnlyArray<ClientDBMessageStoreOperation>,
+};
diff --git a/web/database/worker/db-worker.js b/web/database/worker/db-worker.js
index 60a4964b0..9554832f5 100644
--- a/web/database/worker/db-worker.js
+++ b/web/database/worker/db-worker.js
@@ -1,107 +1,146 @@
 // @flow
 
 import localforage from 'localforage';
 import initSqlJs, { type SqliteDatabase } from 'sql.js';
 
+import type {
+  ClientDBDraftStoreOperation,
+  DraftStoreOperation,
+} from 'lib/types/draft-types.js';
+
 import {
   type SharedWorkerMessageEvent,
   type WorkerRequestMessage,
   type WorkerResponseMessage,
   workerRequestMessageTypes,
   workerResponseMessageTypes,
   type WorkerRequestProxyMessage,
 } from '../../types/worker-types.js';
 import { getSQLiteDBVersion, setupSQLiteDB } from '../queries/db-queries.js';
+import {
+  moveDraft,
+  removeAllDrafts,
+  updateDraft,
+} from '../queries/draft-queries.js';
 import { SQLITE_CONTENT, SQLITE_ENCRYPTION_KEY } from '../utils/constants.js';
 import { generateDatabaseCryptoKey } from '../utils/worker-crypto-utils.js';
 
 const localforageConfig: PartialConfig = {
   driver: localforage.INDEXEDDB,
   name: 'comm',
   storeName: 'commStorage',
   description: 'Comm encrypted database storage',
   version: '1.0',
 };
 localforage.config(localforageConfig);
 
 let sqliteDb: ?SqliteDatabase = null;
 
 async function initDatabase(sqljsFilePath: string, sqljsFilename: ?string) {
   const content = await localforage.getItem(SQLITE_CONTENT);
 
   const locateFile = defaultFilename => {
     if (sqljsFilename) {
       return `${sqljsFilePath}/${sqljsFilename}`;
     }
     return `${sqljsFilePath}/${defaultFilename}`;
   };
   const SQL = await initSqlJs({
     locateFile,
   });
 
   if (content) {
     sqliteDb = new SQL.Database(new Uint8Array(content));
   } else {
     sqliteDb = new SQL.Database();
     setupSQLiteDB(sqliteDb);
   }
 
   const dbVersion = getSQLiteDBVersion(sqliteDb);
   console.info(`Db version: ${dbVersion}`);
 }
 
+function processDraftStoreOperations(
+  operations: $ReadOnlyArray<ClientDBDraftStoreOperation>,
+) {
+  if (!sqliteDb) {
+    throw new Error('Database not initialized');
+  }
+  for (const operation: DraftStoreOperation of operations) {
+    if (operation.type === 'remove_all') {
+      removeAllDrafts(sqliteDb);
+    } else if (operation.type === 'update') {
+      const { key, text } = operation.payload;
+      updateDraft(sqliteDb, key, text);
+    } else if (operation.type === 'move') {
+      const { oldKey, newKey } = operation.payload;
+      moveDraft(sqliteDb, oldKey, newKey);
+    } else {
+      throw new Error('Unsupported draft operation');
+    }
+  }
+}
+
 async function processAppRequest(
   message: WorkerRequestMessage,
 ): Promise<?WorkerResponseMessage> {
   if (message.type === workerRequestMessageTypes.PING) {
     return {
       type: workerResponseMessageTypes.PONG,
       text: 'PONG',
     };
   } else if (message.type === workerRequestMessageTypes.INIT) {
     await initDatabase(message.sqljsFilePath, message.sqljsFilename);
     return;
   } else if (
     message.type === workerRequestMessageTypes.GENERATE_DATABASE_ENCRYPTION_KEY
   ) {
     const cryptoKey = await generateDatabaseCryptoKey();
     await localforage.setItem(SQLITE_ENCRYPTION_KEY, cryptoKey);
     return;
+  } else if (
+    message.type === workerRequestMessageTypes.PROCESS_STORE_OPERATIONS
+  ) {
+    const { draftStoreOperations } = message.storeOperations;
+    if (draftStoreOperations) {
+      processDraftStoreOperations(draftStoreOperations);
+    }
+    return;
   }
 
   throw new Error('Request type not supported');
 }
 
 function connectHandler(event: SharedWorkerMessageEvent) {
   if (!event.ports.length) {
     return;
   }
   const port: MessagePort = event.ports[0];
   console.log('Web database worker alive!');
 
   port.onmessage = async function (messageEvent: MessageEvent) {
     const data: WorkerRequestProxyMessage = (messageEvent.data: any);
     const { id, message } = data;
 
     if (!id) {
       port.postMessage({
         error: new Error('Request without identifier'),
       });
     }
 
     try {
       const result = await processAppRequest(message);
       port.postMessage({
         id,
         message: result,
       });
     } catch (e) {
       port.postMessage({
         id,
         error: e,
       });
     }
   };
 }
 
 self.addEventListener('connect', connectHandler);
diff --git a/web/types/worker-types.js b/web/types/worker-types.js
index 38485f7e1..13a07f444 100644
--- a/web/types/worker-types.js
+++ b/web/types/worker-types.js
@@ -1,57 +1,66 @@
 // @flow
 
+import type { ClientDBStoreOperations } from 'lib/types/store-ops-types.js';
+
 // The types of messages sent from app to worker
 export const workerRequestMessageTypes = Object.freeze({
   PING: 0,
   INIT: 1,
   GENERATE_DATABASE_ENCRYPTION_KEY: 2,
+  PROCESS_STORE_OPERATIONS: 3,
 });
 
 export type PingWorkerRequestMessage = {
   +type: 0,
   +text: string,
 };
 
 export type InitWorkerRequestMessage = {
   +type: 1,
   +sqljsFilePath: string,
   +sqljsFilename: ?string,
 };
 
 export type GenerateDatabaseEncryptionKeyRequestMessage = {
   +type: 2,
 };
 
+export type ProcessStoreOperationsRequestMessage = {
+  +type: 3,
+  +storeOperations: ClientDBStoreOperations,
+};
+
 export type WorkerRequestMessage =
   | PingWorkerRequestMessage
   | InitWorkerRequestMessage
-  | GenerateDatabaseEncryptionKeyRequestMessage;
+  | GenerateDatabaseEncryptionKeyRequestMessage
+  | ProcessStoreOperationsRequestMessage;
 
 export type WorkerRequestProxyMessage = {
   +id: number,
   +message: WorkerRequestMessage,
 };
 
 // The types of messages sent from worker to app
 export const workerResponseMessageTypes = Object.freeze({
   PONG: 0,
 });
 
 export type PongWorkerResponseMessage = {
   +type: 0,
   +text: string,
 };
 
 export type WorkerResponseMessage = PongWorkerResponseMessage;
 
 export type WorkerResponseProxyMessage = {
   +id?: number,
   +message?: WorkerResponseMessage,
   +error?: Error,
 };
 
 // SharedWorker types
 export type SharedWorkerMessageEvent = MessageEvent & {
   +ports: $ReadOnlyArray<MessagePort>,
   ...
 };