About DirectlyDrop

Learn why DirectlyDrop exists, how it works, and how its technical content is prepared and reviewed.

Editorial method: source code, tests, and primary technical sources · Updated: August 23, 2026 · 4 min read

Why are we building DirectlyDrop?

DirectlyDrop is an independent web project designed to reduce account creation, app installation, and permanent upload-link steps when two people need a short, live file transfer.

Its focus is one understandable job: show connection state, help users verify the other device, and track transfer progress. Other tools are better when offline delivery or resumable uploads are required.

Our technical approach

The app is built with React, PeerJS, and WebRTC. It sends 16 KB chunks, applies backpressure when the browser buffer grows, and uses temporary OPFS storage when the recipient supports it.

STUN and, when necessary, TURN help establish connectivity. We therefore distinguish between avoiding permanent DirectlyDrop file storage and claiming that no network intermediary is ever used.

How is the content prepared?

Guides are checked against current source code, real user flows, published tests, and linked primary technical documentation. AI may assist drafting, but technical claims are still reviewed and unsupported speed, capacity, or security guarantees are not published.

Use the Contact page to report a technical error, security concern, or correction. Reports are evaluated for both the product and its documentation.