Every download.
At full speed.

Yes. Downex is free and open source under the GPL-3.0-or-later: no price, no trial, no paid tier and no ads. Anyone may use it, study it, change it and share it.

No ads, no analytics, no telemetry and no account. Everything stays on your computer: the window, the command line and the browser extension talk to the background service, downexd, over a local pipe or socket that only your account can open, and nothing listens on the network.

Besides your downloads, Downex goes online for two things. Once a day it checks downex.app for a signed Downex update. And the first time you save a web video, it fetches yt-dlp and Deno from their publishers on GitHub, verified, then checks once a day for newer versions of them. You can turn off both daily checks, and if you set a proxy script, Downex fetches that too.

yt-dlp reads the video pages you ask about and, with the extension's “Prepare video qualities while you watch” (on unless you turn it off), the page of a video you are watching on a few supported sites, without your cookies.

Downloaded files carry Windows' Mark of the Web or macOS's quarantine flag and, if you set one up, the virus scanner you choose checks every finished download.

Windows and macOS, as a real native app on each: Win32 and Direct2D on Windows, AppKit on macOS, with a tray or menu-bar icon and notifications.

Chrome, Edge, Brave, Chromium and Firefox. Each download the extension hands to Downex carries your sign-in for that address (its cookies and the page it came from), so files behind a login still come through. For videos, cookies go along only if you turn that on.

Downex can ask first for the name, folder and category, and holding Alt (Option ⌥ on a Mac) while you click keeps a download in the browser. Store listings aren't available yet: for now the extension ships with Downex and loads from its folder.

Yes: YouTube and the many sites yt-dlp supports, plus unencrypted HLS and DASH streams, with a Download button right over the video. The first time you save a web video, Downex fetches yt-dlp and Deno from their publishers on GitHub and verifies them, then checks once a day for newer versions (you can turn that off).

Every video is saved as one .mp4 file; streams are converted without re-encoding. DRM-protected and live streams are refused, and please respect each site's terms.

Not if the server supports resuming. Downex saves progress only once it is on disk, so after a pause, quitting, a crash or a restart it picks up right where it stopped. A server that can't resume means starting that file over, and if the file changed on the server in the meantime, Downex notices and never mixes the new file with the old one.

No. There is nothing to sign up for and nothing to sign in to. On Windows, Setup installs Downex for your user without administrator rights. Logins you save for sites are encrypted for your Windows account or kept in the macOS Keychain.

Once a day Downex checks downex.app for a new version, and you can turn that check off. Every update is signed and verified before it installs. On Windows, Setup then updates Downex quietly and reopens the window; on a Mac, the new Downex.app takes the place of the old one and Downex starts again.

A Mac build signed without a Developer ID can't replace itself; for one of those, install the new version from its disk image.

Video, Audio, Archives, Documents and Programs each save to a folder of their own; everything else goes to your Downloads folder, and you can add categories of your own. When a download comes from your browser, Downex can ask first for its name, folder and category.

It arrives with the first release. Downex is open source under the GPL-3.0-or-later, written clean-room from its own specifications, and its repository goes public together with the first downloads.