The fast, secure download manager and video downloader for Windows — a modern IDM alternative.
Up to 32 connections per file · YouTube, TikTok, Facebook, Instagram and other video sites · Torrents · MEGA · Phone remote
Windows 11 · 10 · 8.1 · 8 · 7 | Chrome · Edge · Firefox · Opera · Brave · Vivaldi
⬇ Download DDM for Windows (free 30-day trial) · Browser add-ons · Features · FAQ · What's new
DDM (DedSec Download Manager) is a download manager, download accelerator and video downloader for Windows. It splits every file into up to 32 parts downloaded at the same time, resumes broken and expired downloads, and saves videos from YouTube, TikTok, Facebook, Instagram, Reels, Bilibili, X (Twitter), Vimeo, Dailymotion, Reddit, Snapchat and almost any other site with a video player, in every quality from 144p to 4K or as MP3. It also downloads torrents, magnet links and MEGA folders.
What makes it different is security. Before a file reaches your PC, DDM checks where it comes from and what it really is: look-alike sites, fake installers, programs disguised as videos or PDFs, sites on public malware lists. Your antivirus only sees a file once it's already on your disk.
DDM is one small native program written in pure C++. There's no .NET, Java, Electron or Python, so it starts instantly and uses almost no memory while it waits in the tray.
- Why people switch to DDM
- Features
- Download and install
- Browser add-ons
- Built in pure C++
- Free 30-day trial and licence
- Frequently asked questions
Looking for an IDM alternative or a free download manager for Windows you can try with no limits? DDM gives you:
| DDM | |
|---|---|
| Download speed | Up to 32 connections per file, plus all your internet connections at once (Wi-Fi + Ethernet + phone hotspot) |
| Resume | After crashes, restarts and sleep, and even when the link has expired (Refresh download link) |
| Video downloader | YouTube, TikTok, Facebook, Instagram, X, Vimeo and other sites, in every quality (4K, 1080p, 720p…) or MP3 |
| Playlists and channels | A whole YouTube playlist or channel in one click, and new videos download by themselves |
| Torrents | Built-in torrent client with magnet links, so you don't need a second program |
| MEGA | Files and whole folders |
| Phone remote | Add, pause and resume downloads from your phone with a QR code |
| Security | Checks links and files before they download; X-Ray shows what's inside archives while they're still on the server |
| Weight | One native C++ program, about 10 MB, almost no memory when idle |
| Price | Every feature free for 30 days, no sign-up |
- Up to 32 connections per file. Every part is checked when it joins the next.
- Every internet connection at once: Wi-Fi + Ethernet + phone hotspot added together.
- Resumes anything: a dropped connection, a restart, sleep, or an expired link. Refresh download link continues from the exact byte.
- Starts the moment the window opens, so Start Download picks up from what has already arrived.
- A download window like IDM's: URL, status, size, downloaded, transfer rate, time left and resume capability at a glance, a big progress bar, and a second minimize button in its title bar that hides it in the tray.
- Clean folders: unfinished parts wait in DDM's own folder; your folders only ever get finished files.
- Speed limiter that lifts itself when nothing else is using the internet.
- Queues and a scheduler: download at night, shut down or sleep when finished, and set limits for metered connections.
- A "Download this video" button appears above the videos you watch in your browser. Click it and pick a quality: 4K, 1440p, 1080p HD, 720p, 480p, 360p, or just the sound as MP3.
- Sites: YouTube (videos, Shorts and live), TikTok, Facebook (videos and Reels), Instagram (Reels and posts), Threads, Bilibili (up to 4K), Snapchat, X / Twitter, Vimeo, Dailymotion, Reddit, plus any site whose player shows its video in the page, also inside embedded players.
- Streams (HLS .m3u8 and DASH .mpd): every quality, many pieces at a time, encrypted streams (AES-128), separate sound tracks joined. One normal MP4 comes out without re-encoding. Live streams are recorded until you stop.
- Adapts by itself: DDM's site rules update automatically (signed by DedSec) when a site changes, with no new version needed.
- Real names: videos are named after their title or caption, never "(20+) Facebook", and hashtags and view counts are left out.
- Thumbnails and subtitles saved next to the video if you want them.
| The button over every video | Download Video: every quality |
|---|---|
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- Paste a YouTube playlist or channel link (also
@handle, Shorts and live tabs). DDM lists every video, even in very long playlists. - Untick what you don't want, choose the quality (up to MP3) and the folder, and click Download.
- Subscribe to a playlist or channel and its new videos download by themselves, in the quality you chose.
| Download a whole playlist or channel | Subscriptions |
|---|---|
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Right-click a video or song and choose Play while downloading. When you jump ahead, DDM downloads that part of the file next, so you can start watching in seconds. Formats Windows can't play open in your browser instead.
Tools → Phone remote: scan the QR code with your phone and you'll see every download with its progress and speed. You can add links, pause, resume or remove downloads from your phone, with nothing to install on it. It only works inside your own network and only with the link's secret code.
- A fast built-in torrent client: magnet links, choose files and their priority, trackers and peers, limits per torrent, seeding until a ratio or time, UPnP / NAT-PMP port forwarding, DHT, peer exchange, encryption, IP blocklist and a watch folder. You can also create your own torrents.
- MEGA downloads: single files and whole folders.
- Link and site check: before you click Start Download, DDM says whether a link is Safe, Be careful or Dangerous, and why. It looks for look-alike sites (
micros0ft-…,paypa1…), brand-new domains, public malware lists, link shorteners, bare IP addresses, programs disguised as pictures, videos or PDFs, and bait names like "crack" or "keygen". - Security tab while it downloads: the SHA-256 is worked out as the data arrives and compared with the checksum the site published. Your antivirus scans the file the moment it's finished, and it gets Windows' "from the internet" mark, so SmartScreen and Office Protected View keep protecting you.
- X-Ray: see what's inside a ZIP, RAR, 7z, ISO, TAR, CAB, torrent or program while it's still on the server, including who signed a program and risky files hidden in an archive. Then download only the files you want.
- Private vault (encrypted, with a decoy password) and a metadata remover for photos, videos, music and Office files.
| Link check | X-Ray: look inside before downloading |
|---|---|
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Right from the download list: compress video, convert to MP3, trim, video to GIF, compress pictures, remove an image's background (on your PC, nothing is uploaded), extract archives, find duplicates and a connection speed test.
| Right-click → File tools | File tools |
|---|---|
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DDM speaks English, বাংলা (Bengali), हिन्दी (Hindi), اردو (Urdu), العربية (Arabic), Español, Français, Português (Brasil) and Bahasa Indonesia. Pick one in Options → General → Language (or let DDM follow Windows): every window, menu, message and notification changes at once, with right-to-left reading for Arabic and Urdu.
- Browser add-ons for Chrome, Edge, Firefox, Opera, Brave and Vivaldi: catch downloads, Download all links / images, and Save page as PDF.
- Your own categories with their own file types and folders.
- Statistics, sounds, dark mode, Find (Ctrl+F), backups of your list, and a full built-in help.
- Updates itself quietly and safely: every update is signed and checked twice before it runs.
- Works side by side with Internet Download Manager: DDM asks once which one should catch downloads first.
| Statistics | Scheduler |
|---|---|
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- Download
DDM-Setup-4.2.2.exefrom the latest release. - Run it. It doesn't need administrator rights and installs for you only.
- DDM starts and offers its browser add-on. Chrome and Edge also offer it by themselves the next time they start.
System requirements: Windows 7 SP1, 8, 8.1, 10 or 11 (32-bit or 64-bit) · about 10 MB of disk space.
"Windows protected your PC" / "Unknown publisher"? DDM is signed by DedSec Cyber Security Research Institute. SmartScreen warns about new programs until they build a reputation, so click More info → Run anyway. You can check the file first: see SECURITY.md.
Updating: DDM checks for new versions by itself and installs them when nothing is downloading (Help → Check for updates checks now). Uninstalling: Settings → Apps → DDM → Uninstall. DDM asks before removing your downloaded files or its own data.
The add-on puts the Download this video button on video sites, sends your browser's downloads to DDM, and adds Download with DDM, Download all links, Download all images and Save page as PDF to the right-click menu.
| Browser | Where to get it |
|---|---|
| Google Chrome | Chrome Web Store. DDM also offers it right after setup. |
| Microsoft Edge | Edge Add-ons. DDM also offers it right after setup. |
| Mozilla Firefox | Firefox Add-ons |
| Brave, Opera, Vivaldi and other Chromium browsers | From the Chrome Web Store. Opera first needs the Install Chrome Extensions add-on. |
Without the store: DDM's setup also installs the add-on next to the program (%LocalAppData%\Programs\DDM\extension\chromium). Open chrome://extensions (or edge://extensions), turn on Developer mode, click Load unpacked and choose that folder. You can also use ddm-chrome-addon.zip from the Releases page.
The browser says it can't reach DDM? Start DDM once (it introduces itself to your browsers), or use Options → Browser → Repair.
| Add DDM to your browser | Welcome page |
|---|---|
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DDM is written from the ground up in pure, native C++ for Windows, using the Win32 API directly with no runtime or framework to install:
- One small program. The whole download manager, video engine, torrent client and file tools fit in a single native executable.
- Instant start, tiny memory use. There's no .NET, Java, Electron, Python or browser engine underneath, so it waits in the tray using almost nothing.
- Its own video engine. DDM reads sites, streams (HLS/DASH), playlists and channels itself, with no outside downloader programs.
- Runs on old and new PCs alike, from Windows 7 to Windows 11, 32-bit and 64-bit.
- Signed with DedSec's code-signing certificate, and updates are signed too.
DDM is commercial software made by DedSec Cyber Security Research Institute. Every feature is free for 30 days, with no sign-up and no limits. Use it as your only downloader for a month: the expired link that resumes, the big file that survives a Wi-Fi drop, the fake site it flags.
After that, get a licence key from dedseec.com and enter it in Help → Register DDM. See the licence terms.
What is the best IDM alternative for Windows? DDM covers what people use Internet Download Manager for (multi-connection downloads, resume, browser integration, a video download button and a scheduler) and adds torrents, MEGA, playlist and channel downloads, a phone remote and security checks before each download. Try every feature free for 30 days.
How do I download YouTube videos and playlists? Install DDM and its browser add-on, open the video and click Download this video. For a whole playlist or channel, paste its link into DDM (Tasks → Download playlist or channel…).
Can DDM download TikTok, Facebook, Instagram and Reels videos? Yes. Point at the video and click Download this video. Each video is saved under its own caption or title.
Can I download a video as MP3? Yes. Choose Sound only (MP3) in the button's menu, or MP3 in the quality list.
Does DDM replace my antivirus? No. It adds checks your antivirus doesn't make (where a file comes from and what it pretends to be), then hands the finished file to your antivirus.
Does DDM work with Internet Download Manager installed? Yes. DDM asks once which one should catch downloads first.
Is my data private? Yes. There's no account, no ads and no tracking. Your downloads, history and cookies stay on your PC, and the browser add-on talks only to DDM on your own computer.
Where are my files? In your Downloads folder, sorted into Compressed, Documents, Music, Programs and Video (plus your own categories). You can change this in Options → Save to.
I found a bug or have an idea. Please open an issue. For security problems, see SECURITY.md.
DDM — DedSec Download Manager: download manager · download accelerator · IDM alternative · video downloader · YouTube downloader · playlist downloader · TikTok downloader · Facebook video downloader · Instagram Reels downloader · MP3 converter · torrent client · magnet link downloader · MEGA downloader · HLS / m3u8 downloader · for Windows 11, 10, 8 and 7
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