MEGA Browser vs Desktop App: Folder Sync Guide

If you want automatic folder sync on MEGA, you need the desktop app—the browser version cannot sync folders in real time. The browser is fine for uploading and downloading files manually, but it lacks the background sync engine that the desktop client provides.

What MEGA Browser Offers

The MEGA web interface (mega.nz) lets you upload files, create folders, share links, and manage your cloud storage entirely in a browser tab. It uses your browser’s upload/download capabilities, which means transfers pause if you close the tab or lose internet. For occasional file transfers or quick access from a shared computer, the browser version is convenient because it requires no installation. However, it does not offer any form of continuous folder synchronization—you must manually upload each file or folder each time you want it in the cloud.

What the Desktop App Adds

The MEGA desktop application (available for Windows, macOS, and Linux) installs a sync client that runs in the background. It creates a local folder (usually named MEGA) that mirrors your cloud storage. Any file you place in that folder is uploaded automatically; any change made on another device or in the web interface is downloaded to your local folder. This two-way sync is the core feature that the browser cannot replicate. The desktop app also supports selective sync, so you can choose which cloud folders to keep on your local disk, and it can handle large transfers more reliably than a browser because it uses its own transfer engine with pause/resume capabilities.

How Sync Works in the Desktop App

When you install the desktop app and log in, it creates a sync relationship between your local MEGA folder and your cloud account. The app watches the local folder for changes—new files, edits, deletions—and uploads them. Simultaneously, it monitors the cloud for changes made elsewhere and downloads them. This is done through a background process that starts when you log in to your computer, so you don’t need to keep the app window open. The sync is continuous and automatic, with a small delay (usually seconds) after a change is detected. Files are transferred using MEGA’s end-to-end encryption, which happens on your device before upload.

Choosing Between Browser and Desktop

Your choice depends on your primary use case. Choose the browser if:

You only need to occasionally upload or download a few files.
You are on a computer where you cannot install software (e.g., a public library or a work machine with restrictions).
You want to access your files from any device without setting up a client.

Choose the desktop app if:

You want automatic backup of a local folder to the cloud.
You need your cloud files available offline on your computer.
You work with large files or many files and want reliable transfer with pause/resume.
You want to keep multiple devices in sync without manual uploads.

If you need folder sync, the desktop app is the only option. The browser version is a manual tool, not a sync tool.

Common Problems and Workarounds

Users often encounter a few issues when using the desktop app. One common problem is that sync stops working after a network change or computer sleep. Restarting the app usually fixes this. Another issue is that the app may not detect changes if the local folder is on a network drive or an external drive that is not always connected—MEGA recommends using a local internal drive for the sync folder. If you accidentally delete a file in the sync folder, it is also deleted from the cloud (and vice versa), unless you have enabled the ‘Rubbish Bin’ feature, which retains deleted files for a period. To avoid data loss, make sure you understand that sync is bidirectional and deletions propagate. If you need to keep a file only locally, move it out of the sync folder.

Costs and Storage Limits

MEGA offers a free account with 20 GB of storage, which is generous compared to many competitors. However, the free tier has transfer quotas (bandwidth) that reset periodically; if you exceed them, uploads and downloads slow down or pause until the quota resets. Paid plans (Pro Lite, Pro I, Pro II, Pro III) increase storage and transfer quotas, but the pricing varies by region and is subject to change. The desktop app itself is free to use; you only pay for extra storage. Both browser and desktop versions are included in all plans, so there is no extra cost for the sync feature.

Security and Privacy Considerations

MEGA is known for its end-to-end encryption. Data is encrypted on your device before being uploaded, and only you hold the decryption keys. This applies to both the browser and desktop versions, but there is a caveat: when using the browser, the encryption keys are handled in JavaScript, which is generally secure but has been a topic of debate. The desktop app uses native code, which some users consider more secure. Also, be aware that MEGA’s encryption means that if you lose your password, you cannot recover your files—there is no password reset that can decrypt your data. Always use a strong password and consider enabling two-factor authentication for an extra layer of security.

Alternatives to MEGA for Folder Sync

If MEGA’s desktop app doesn’t meet your needs, other services offer similar folder sync functionality. Dropbox and Google Drive are popular choices with mature sync clients and generous free tiers (though smaller than MEGA’s 20 GB). Microsoft OneDrive is integrated into Windows and offers 5 GB free. For users who prefer open-source solutions, Syncthing is a peer-to-peer sync tool that does not use a cloud server—it syncs directly between your devices, which gives you full control but requires you to manage your own storage. Each service has its own folder sync approach, but the general concept is the same: a local folder that mirrors the cloud. When choosing, consider storage limits, transfer speed, encryption, and platform support.

Frequently Asked Questions

Can I sync a folder from my computer to MEGA without the desktop app?

No, the browser version does not have a sync feature. You can manually upload files, but there is no automatic background sync. The desktop app is required for folder sync.

Does the MEGA desktop app work on Mac and Linux?

Yes, MEGA provides desktop apps for Windows, macOS, and Linux. The sync functionality works the same across these platforms, though the installation process may vary slightly.

If I delete a file in my local MEGA folder, is it deleted from the cloud?

Yes, deletion is treated as a change and is synced. The file will be moved to the cloud Rubbish Bin, where it remains for a period (usually 30 days for free accounts) before being permanently deleted. You can restore it from the bin if needed.

How do I pause or stop sync temporarily?

In the desktop app, you can right-click the MEGA icon in the system tray (Windows) or menu bar (macOS) and select ‘Pause’ or ‘Exit’. Pausing stops transfers but keeps the app running; exiting stops the background process entirely.

Can I sync only specific folders, not the entire MEGA cloud?

Yes, the desktop app allows selective sync. During setup or in the settings, you can choose which cloud folders to sync to your local drive. This is useful if you have limited disk space.

Does the browser version use the same encryption as the desktop app?

Yes, both versions use end-to-end encryption with your password as the key. The difference is that the browser performs encryption in JavaScript, while the desktop app uses native code. Both are considered secure, but the desktop app is often preferred for sensitive data.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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