KuDownloader Download

KuDownloader

Download anything,
at full speed

A free, open-source download manager for your computer and your phone. Many connections per file, resume after anything, videos from 1,000+ sites, and no ads, accounts or tracking.

Download for free See what it does

Windows · macOS · Linux · Android

KuDownloader's main window with a list of downloads and the speed graph

KuDownloader is built for everyone who downloads: big files that finish, links that expire, videos you want to keep, and files you want on your other devices without the cloud.

One download manager,
everywhere you are

Desktop app

Windows, macOS and Linux. Queues, schedules, a progress window like the classics, and updates that install themselves.

Download

Android app

The same engine in your pocket, with a private browser that blocks ads and puts a KuDownload button on every video.

Get the APK

Browser extension

Chrome, Edge, Brave and Firefox hand their downloads and videos to KuDownloader with one click.

Add to your browser

KuAirSend

Files, folders and links between your phone and computers on the same Wi‑Fi, at full local speed, encrypted.

How it works

Everything a download
manager should do

And a few things none of the others do.

  1. Full speed, automatically

    Every file is split across many connections, and KuDownloader tunes them while it runs: more when the server keeps up, fewer when it pushes back.

  2. Resume after anything

    Lost Wi‑Fi, a restart, a link that expired: pick up where it stopped. Refresh an expired address without losing a byte.

  3. Videos and music from 1,000+ sites

    Choose the quality, keep subtitles and cover art, grab whole playlists, or save just the audio as M4A, MP3, Opus or FLAC.

  4. Takes over the browser

    Downloads you start in the browser land in KuDownloader, with the site's cookies so signed-in downloads work too.

  5. Yours to shape

    Light and dark themes, accent colours, twelve languages, speed profiles, and schedules that start the night shift for you.

Torrents & magnet linksQueues & schedulesBatch & numbered patternsFetch every file on a pageChecksumsSpeed limitsProxy & SFTPAd-blocking browserWi‑Fi only on phonesSigned updates12 languagesOpen source

KuAirSend

Your devices,
one tap apart

Nearby KuDownloader devices show up on a radar, each with its own pixel animal. Tap one to send files, folders, text or links. Nothing goes through the internet.

  • Send a link from your phone and let your PC download it, now or tonight at 2:00
  • Encrypted between devices, with an optional PIN and trusted devices
  • Phone to PC, PC to phone, PC to PC

Built for the way
you download

Big files

Games, ISOs and 50 GB archives

Many connections, resume after a restart, and a checksum at the end so you know it is intact.

Creators

Reference videos, music and stock

Pick quality and format, keep subtitles, and let whole playlists download while you work.

Students

Lectures and course files

Fetch every PDF on a course page at once, or queue lectures to download overnight.

Slow internet

Make the most of what you have

Speed profiles, schedules for off-peak hours, and Wi‑Fi only on your phone.

Home

One family, many devices

Send a link from any phone and let the always-on PC do the downloading.

Download KuDownloader

Free and open source. Pick your system.

Browser extension

Hands the browser's downloads and videos to KuDownloader. It comes with the desktop app: open Settings › Browser integration and choose your browser (Chrome, Edge, Brave, Opera, Vivaldi or Firefox).

Get the desktop app first

Questions

Is it really free?

Yes. KuDownloader is free and open source, with no ads, no accounts and no paid tier.

Does it collect any data?

No. Your downloads, history and settings stay on your devices. See the privacy policy.

Windows or macOS says the app is from an unknown developer.

The installers are not yet signed with a paid code-signing certificate. The app updates themselves are signed and verified before they install.

Why isn't the Android app on Google Play?

Google Play does not allow apps that download from video sites, so KuDownloader for Android is published here and on GitHub.

Does it download DRM-protected videos?

No. KuDownloader does not bypass DRM.

Start downloading
at full speed

Download for free