DirectlyDrop / Guides
DirectlyDrop Frequently Asked Questions
Answers about DirectlyDrop file storage, WebRTC security, large files, browser support, connection problems, and room codes.
Prepared by: DirectlyDrop · Editorial method: source code, tests, and primary technical sources · Updated: August 7, 2026 · 6 min read
Are files stored on a DirectlyDrop server?
File contents are not uploaded to a permanent DirectlyDrop repository for later download. They travel through a WebRTC data channel. Encrypted traffic may be relayed through TURN when direct connectivity is unavailable, but relay forwarding is not permanent file hosting.
Connection services can process technical data such as IP addresses, while analytics and advertising services may use cookies or similar identifiers. See the Privacy Policy for details.
Is there a file-size limit?
There is no fixed megabyte limit in the transfer code. Practical limits come from browser memory, device storage, network stability, and operating-system restrictions. OPFS-capable recipients can write chunks temporarily to disk.
Try a small file before a large transfer and keep both tabs open for the entire session.
Can an interrupted transfer resume?
No. The current version has no persistent checkpoint or resume protocol. If the connection drops, create a new session and send again. Splitting a large archive into independent parts can reduce the amount that must be repeated.
Why can I not connect?
An incorrect or expired code, a closed sender tab, a VPN, a corporate firewall, or a restricted mobile network can block pairing. Refresh both sides, use the newly generated code, then test a current browser and another network.
Rooms wait for a peer for roughly ten minutes. Use a new code rather than one left open for a long time.
Is transfer end-to-end encrypted?
WebRTC data channels use DTLS transport encryption, including when encrypted traffic passes through TURN. The four-digit room code is not an additional file password. Share it privately and reject unexpected file offers.
Which browsers are supported?
Current Chrome, Edge, Firefox, and Safari releases support core WebRTC data channels, but optional storage features vary. Test a small file first on older iPhones, low-memory Android devices, and managed corporate browsers.
How many files can I send at once?
The interface queues up to three files per selection and sends them sequentially. The next file does not start until the recipient acknowledges completion of the current one.
Is DirectlyDrop free?
Yes. DirectlyDrop is free to use. Eligible content pages may show clearly separated advertising to help cover development and operating costs; users are never asked to click an ad.