Dropbox to TeraBox: Cutting the Subscription Bill With 1 TB Free Storage

Method 1: Browser Download from Dropbox, Web Upload to TeraBox

Sign in at dropbox.com and open the file browser. Tick the checkboxes next to files or folders, then click Download. Dropbox bundles folder downloads into a ZIP archive on the fly. The web download path imposes a soft 20 GB / 10,000-file cap per ZIP build — anything above that needs to be split into smaller selections, or pulled through the desktop client (Method 2).

Dropbox Paper documents and shared files owned by other users behave differently in the download. Paper exports as .docx when downloaded individually but is skipped in bulk-folder ZIPs; files shared into your account but owned by others may require explicit copy-to-my-Dropbox before they appear in your export.

After the ZIP arrives, extract it locally and run a quick file count against what Dropbox showed. On macOS or Linux, find ./dropbox-export -type f | wc -l; on Windows, sort the extracted folder by file count via the Properties dialog. This is the only step where you can spot a partial Dropbox export before the data crosses to TeraBox, and it is worth doing for any folder above a few hundred files.

Open terabox.com and sign in. Use Upload → Upload Folder for batches, or drag and drop into the file list. Free-tier accounts reject any single file above 4 GB with a non-obvious error — if a file silently disappears from the upload queue, the per-file cap is almost always the cause. Premium accounts can push files up to 20 GB.

Background tabs and locked screens both pause TeraBox uploads after a few minutes of inactivity. Plug the laptop in, set the screen to never sleep during the upload, and avoid switching to another tab on the same browser profile until the queue drains.

The browser-only path works for working folders in the low-tens-of-gigabytes range. It needs no extra accounts and no tooling, but the data crosses your home network twice — once down from Dropbox, once back up to TeraBox — and the browser must stay awake throughout.

Method 2: Dropbox Desktop Client, Then Upload from a Local Folder

Install the Dropbox desktop client if it is not already running. Sign in with the account you want to migrate from. The client mirrors your Dropbox into a local folder (typically ~/Dropbox on macOS / Linux, %USERPROFILE%\Dropbox on Windows), pulling files in the background.

For accounts above the local disk's free space, use Selective Sync (Preferences → Sync → Selective Sync) to pull only the folders you plan to migrate. The desktop client uses block-level sync, so even after the initial pull, only changed parts of files re-download — that is the single largest reason this method beats the web ZIP path on big accounts.

Once the client reports "All files up to date", spot-check the sync. Open three or four sample files from inside the local Dropbox folder to confirm they are real (not online-only placeholder smart-sync files). On Windows, online-only files show a cloud icon in Explorer; right-click → Always keep on this device to materialize them locally before the upload to TeraBox can include them.

Open terabox.com in a browser and drag the synced folder (or subfolders of it) into the upload area. From TeraBox's perspective, this is a normal folder upload — it does not know or care that the source is a Dropbox mirror. The same 4 GB free-tier per-file cap and screen-awake behavior described in Method 1 apply.

If you have a TeraBox desktop client installed, you can drop the folder into its watched directory instead of using the web upload — that pipeline is generally less prone to browser pauses on long runs.

This route avoids the web ZIP build entirely, which is the big win on Dropbox accounts that exceed the 20 GB / 10,000-file ZIP cap. The trade-off is local disk: you need enough free space to hold the working set, plus IO budget for the desktop client and the TeraBox upload to run in parallel.

Method 3: Transfer Dropbox to TeraBox Directly in the Cloud

In CloudsLinker, click Add Cloud → Dropbox. The browser redirects to www.dropbox.com for the standard OAuth consent screen. Sign in, review the requested scopes (read and write file content under the connected app's folder scope or full Dropbox depending on plan), and approve. The token is account-scoped and revocable from www.dropbox.com/account/connected_apps at any time.

For Dropbox Business / Team accounts, an admin may need to allow CloudsLinker as an approved app from the Dropbox Business admin console before the OAuth grant succeeds. Personal accounts do not have this layer.

TeraBox does not publish an OAuth or developer API, so the connection uses the same browser session cookie your logged-in TeraBox tab already has. The recommended path is the EditThisCookie (V3) Chrome extension:

1. Install EditThisCookie (V3) from the Chrome Web Store.
2. Open www.terabox.com in the same browser and confirm you are logged in.
3. Click the EditThisCookie icon → Export. The cookie set is copied to your clipboard as JSON.
4. In CloudsLinker, click Add Cloud → TeraBox → enter a display name → paste the JSON → Confirm.

Without an extension, the DevTools fallback works: open DevTools (F12) → Network tab → tick Preserve log → refresh the page → click any request → copy the full Cookie header value (typically ndus=...; ndut_fmt=...) and paste that string into CloudsLinker.

Open the Transfer section. Select your connected Dropbox as the source and browse to the folders you want to move. On the destination side, select TeraBox and pick or create a target directory.

Apply filters to keep oversized files out of a free TeraBox account: a file-size cap at 4 GB for free or 20 GB for Premium catches anything that would fail at the destination. Modification-date filters are useful for archive runs (for example, only files older than 12 months). Pick Copy to leave Dropbox originals in place, or Move to delete them after a successful transfer.

Click Start. The Task List shows transferred size, current speed, files-per-second, and remaining items. The transfer runs entirely in the cloud — closing the browser does not stop it. If your TeraBox cookie expires mid-job (logout, password change, or extended inactivity), the task pauses and CloudsLinker emails you to paste a fresh cookie instead of failing every queued file.

Practical throughput is shaped mostly by Dropbox's per-app rate limits (generous for read-only listing and download workloads) and TeraBox's undocumented rate behavior. CloudsLinker handles HTTP 429 with exponential backoff so a long job survives transient throttles instead of failing. After the run, download the transfer log (CSV with file path, size, status, timestamp) for your records.