---
title: "Discussion on \"How WhatsApp Works Without Internet: Offline Messaging and Sync Explained\" | Hashnode"
description: "Discussion on \"How WhatsApp Works Without Internet: Offline Messaging and Sync Explained\". Introduction\nImagine you're on a flight with Airplane Mode enabled. You open WhatsApp, type a message to your friend, and press Send.\nSurprisingly, the message immediately appears in your chat window."
url: "https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1b8f9d2d59948cf6b0001d"
---

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# [How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://mobile-dev-expo.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed)

Introduction Imagine you're on a flight with Airplane Mode enabled. You open WhatsApp, type a message to your friend, and press Send. Surprisingly, the message immediately appears in your chat window.

May 31 · 7 min read · mobile-dev-expo.hashnode.dev  
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## Written by

[Pankaj Kumar](https://hashnode.com/@pankajkry)

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