Question 1

My two devices won't connect - what should I check?

Accepted Answer

Make sure both devices have the QuickBridge tab open and active in the foreground. On the computer, the QR code on the home page is the host - it has to be the page that's open, not a screenshot. On the phone, point the camera at the QR (or open the link directly) and accept any browser prompt. If your network blocks direct browser-to-browser traffic, QuickBridge will fall back to an encrypted relay automatically.

Question 2

Do both devices need to be on the same Wi-Fi?

Accepted Answer

No. QuickBridge tries a direct browser-to-browser connection first, but it works across networks too. When a direct path isn't possible (some company or hotel networks block it), traffic falls back to an encrypted relay. The relay forwards already-encrypted bytes - it can't read them.

Question 3

Can I pair with a 6-digit PIN instead of a QR code?

Accepted Answer

Yes. On the host device, the PIN is shown right under the QR code. On the second device, open quickbridge.app/join, type the PIN, and you're connected. Useful when you can't physically scan - for example pairing two laptops, or a phone with a broken camera.

Question 4

Why does the QR code change if I refresh the page?

Accepted Answer

Each session uses a new short-lived ID, so refreshing the host page generates a fresh QR. Once the two devices are paired, the ID is no longer needed and isn't reusable - this keeps old session links from being shared accidentally.

Question 5

Is there a file size limit?

Accepted Answer

Up to 2 GB per file by default, and up to 10 GB per file when the receiver enables "Save received files to a folder" so the file can stream straight to disk instead of being held in memory. There's no daily quota and no monthly cap - send as many transfers as you want.

Question 6

Can I send a folder, or do I have to send files one at a time?

Accepted Answer

You can drop or select many files at once - QuickBridge sends them one after another with a progress bar for each. Whole-folder selection depends on the browser: most desktop browsers let you drag a folder onto the drop zone, and the file picker on mobile lets you select multiple files in a row.

Question 7

Can I send the same file to more than one device at once?

Accepted Answer

A QuickBridge session is one-to-one by design - one host paired with one receiver. To send the same file to several people, either start a new session for each, or send it once to one receiver and have them forward it. This keeps the security model simple: the emoji code only has to verify two devices.

Question 8

Why is my transfer slower than I expected?

Accepted Answer

Speed is capped by the slower of the two devices and the network between them. A few common causes: the receiver is on a slow mobile connection, your network forced a relay fallback, or another upload is hogging your uplink. The status badge shows whether the connection is direct or relayed - direct is almost always faster.

Question 9

Where do received files go?

Accepted Answer

By default, finished files appear in the session as download links - clicking one saves the file via your browser's normal downloads folder. If you turn on "Save received files to a folder", QuickBridge writes each file straight to a folder you pick on disk, with no separate save step.

Question 10

How do I save received files straight to disk on my computer?

Accepted Answer

On the receiving computer, open the in-session menu and turn on "Save received files to a folder". The browser will ask which folder to use - pick one, and QuickBridge will stream future incoming files into it directly. This also unlocks the 10 GB per-file ceiling, because the file never has to fit in memory.

Question 11

Can I save received files to a folder on my phone?

Accepted Answer

On phones, browsers don't yet support direct stream-to-folder, so files arrive as normal downloads (or open in the in-session viewer for photos and short text). You can then move them to any app or folder using your phone's standard share sheet.

Question 12

What is the emoji code I see when connecting?

Accepted Answer

It's a Short Authentication String (SAS) derived from the encryption fingerprints of both devices. Both ends compute it independently from their own keys - if they match, you've connected to the right device with no impersonator in between. Always glance at it on both devices before sending anything sensitive. If the strings don't match, end the session and try again.

Question 13

Is QuickBridge actually encrypted, or is that marketing?

Accepted Answer

Real encryption. Files, messages, and clipboard data move over a WebRTC data channel secured with DTLS - the same encryption used for browser video calls. QuickBridge has no server in the file path and cannot read what you transfer, even when traffic falls back to a relay.

Question 14

The transfer dropped halfway - did I lose progress?

Accepted Answer

No. QuickBridge holds your partial download for up to 2 minutes after the connection drops. The receiver row shows "Paused - waiting for sender to resume". When the connection comes back and the sender retries, the file picks up from where it left off instead of starting from zero. If 2 minutes pass with no resume, the partial is removed automatically so nothing is silently left behind.

Question 15

The other device disappeared from my session - what happened?

Accepted Answer

Usually a sleeping phone or a closed tab. Modern phones suspend background tabs aggressively to save battery, which kills the connection. The session shows "Reconnecting" and tries to restore the link automatically; if the other device comes back within a minute or so, in-flight files resume on their own.

Question 16

The status badge says "Reconnecting" forever - what now?

Accepted Answer

First, make sure the other device's tab is open and in the foreground - that's the most common cause. If both tabs are alive and the badge still won't recover, click "End bridge" and start a fresh session. You won't lose anything that already finished transferring; only the active connection is reset.

Question 17

The site refuses my file with an "over the limit" message - why?

Accepted Answer

Without "Save to folder" enabled, files have to fit into memory, so the per-file cap is 2 GB. To send a larger file (up to 10 GB), have the receiver turn on "Save received files to a folder" first - then the same file will stream straight to disk and be accepted.

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How a QuickBridge transfer works

Open on both devices

Pair with QR or PIN

Verify the emoji code

Send anything, instantly

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