Portal Drop: Fast, Free Phone to PC File Transfer

Written by AllinPlus Editorial Team, Technical Research & Engineering Board

Published Jul 19, 2026 • Last reviewed: Jul 19, 2026

Generate secure, temporary file sharing links. Portal Drop allows you to instantly transfer text snippets or small files peer-to-peer over WebRTC.

Link this device

Scan with your phone's camera to connect.

Connection

Live status of the peer-to-peer link.

Opening room…

Waiting for the other device

Send files

Drag files here, or tap to choose. They'll appear on the other device as soon as the link is live.

⇄

Drop files or tap to browse

Waiting for the P2P link to connect first

How to use

Open Portal Drop on your laptop A QR code and shareable link appear automatically — no sign-in needed.

Scan the QR code with your phone Use your phone's camera app or Chrome. Keep both tabs open the whole time.

Drop or tap to send files Files transfer instantly, directly between devices. Nothing ever touches a server.

💡 Same WiFi = fastest connection. Portal Drop also works across different networks (e.g. phone on mobile data, laptop on WiFi) — it automatically finds a relay path. When the session ends, click Start New Session to transfer more.

How to Use

Step 1: Select a file or paste text into the drop zone.
Step 2: Share the generated connection link with the recipient.
Step 3: Keep your browser tab open until the recipient downloads the file.

Example Calculation

Scenario: Sending a 50MB PDF directly to a colleague.

File Size: 50MB
Connection: WebRTC

Result: Transferred securely with zero server storage.

Because it uses WebRTC, the file is sent directly from your browser to theirs, bypassing cloud storage entirely.

Frequently Asked Questions

Is there a file size limit?

While WebRTC can handle large files, we recommend keeping transfers under 1GB for browser stability.

📚

Want to understand the underlying mechanics? Read our in-depth guides in the Utility Staples category.

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