Compatibility
Large file support on more browsers
Free Transfer has always aimed to let you share files and transfer files of almost any size, limited mainly by your connection and device. This post shares an update on large file support across browsers and what it means for you when you send files secure.
Why large file support is tricky
Handling very large files involves many moving parts: browser memory management, streaming APIs, network conditions and even filesystem limits. Different browsers implement these pieces in slightly different ways. In the early days, some combinations struggled with files larger than a few gigabytes, leading to frustrating failures.
We have invested significant effort into testing Free Transfer with a wide range of browsers, gradually tuning our approach to work well within each environment’s constraints. As browsers improve their underlying APIs – such as streaming reads and writes – our ability to support truly large files improves as well.
Recent improvements in browser capabilities
Modern versions of Chrome, Firefox, Edge and other browsers have made tangible progress in handling large blobs and streams. Memory usage is more efficient, and APIs for chunked reads are more stable. This allows Free Transfer to split large files into manageable pieces and transfer them over P2P connections without overwhelming the browser.
As a result, more users can now confidently send multi‑gigabyte files. While we still recommend a wired connection for the best experience with huge transfers, the range of scenarios in which large file support "just works" has broadened considerably.
What this means for your workflow
The most important practical outcome is that you can rely on Free Transfer for more demanding tasks: sending raw video footage, backup archives or large project bundles. The no file size limit philosophy is not just a slogan; it is supported by continuous testing and iteration as browsers evolve.
We will keep monitoring changes in browser engines and adapting our code to take advantage of new capabilities while avoiding regressions. When issues appear in specific versions, we document them and, where possible, offer workarounds, such as recommending an alternative browser or slightly different workflow.