One link, one ceiling
Browsers and most download managers open every connection on the same network. Faster Wi-Fi is the only way to go faster.
Every connection you have.
One download.
IDMX pulls a single file over Wi-Fi, Ethernet, your phone's hotspot and cellular at the same time — then puts it back together. Torrents, video from thousands of sites and a browser extension come built in.
Free · No account · Nothing leaves your computer
IDMX
0network types at once
Wi-Fi · Ethernet · tether · cellular
Wi-Fi · Ethernet · tether · cellular
0kinds of download
files · torrents · video
files · torrents · video
0sent to anyone
no account, no telemetry
no account, no telemetry
0engine, three front doors
app · browser · terminal
app · browser · terminal
The problem
You're paying for more internet
than any download uses.
Your laptop is on Wi-Fi. Your phone has a data plan. There may be an Ethernet port, too. A normal download uses exactly one of them and leaves the rest idle — so the slowest link sets your pace, and one hiccup stalls the whole thing.
Try it — switch connections on and off
Any normal downloader—
IDMX—
—
Illustrative simulation using the speeds shown. Real results depend on your connections — and on them being separate (two things on the same router share one uplink; IDMX tells you when it sees that).
Slow servers, slow you
Plenty of servers throttle each connection. One socket on one network means you never reach what your line can actually do.
Fragile by default
A dropped connection, a sleeping laptop, a Wi-Fi switch — and the download starts over. Big files deserve better.
How it solves it
Cut the file up. Send every piece
down a different road.
- 01
Find every way out
IDMX lists your network adapters and works out which are Wi-Fi, Ethernet, a tethered phone or cellular, and which are actually online.
- 02
Bind, don't hope
Each connection is tied to one specific network at the operating-system level, so traffic really leaves through that road — not whichever one your computer prefers.
- 03
Split into blocks
The file is divided into small blocks. Free connections grab the next one; a fast network naturally takes more, a slow one fewer. The last stretch is raced so a laggard can't hold you up.
- 04
Reassemble & verify
Blocks land in the right place on disk, the file is checked against its checksum when one is published, and a download that was interrupted simply resumes.
Wi-FiPhone hotspotCellular
Features
Everything a download manager should be.
Nothing it shouldn't.
Real screenshots from the app. Dark mode is true black for OLED screens; light mode is true white.
Downloads
Screenshots show a demo run with simulated extra networks, because a single Mac only has one real connection to show.
Multi-network engine
Wi-Fi + Ethernet + hotspot + cellular, each pinned to its own road, balanced by how fast each one really is.
Block-level splitting
Dozens of parts of one file download at once, with live per-connection detail and a map of who delivered what.
Self-healing
Unplug a cable, walk out of Wi-Fi range, close the lid — IDMX re-routes, retries and resumes without starting over.
Video from thousands of sites
Pick Low 480p, Med 720p or High 1080p — or audio as MP3 at 216 or 320 kbps. Powered by yt-dlp running on your own computer.
Torrents
Magnet links and .torrent files, with a file picker, seeding limits, and multi-file torrents divided across your networks.
Browser extension
Grabs links, videos and magnets for you — a download button appears over videos and the extension pairs itself with the app.
Use your phone
Plug in an iPhone or Android over USB and its data becomes one more road. Per-network data caps keep your plan safe.
Automation
Schedules, a speed limit, post-download rules (move, extract, run), sleep when the queue is empty.
Private by design
No account, no analytics, no cloud. The API is token-locked even on your own machine.
Browser extension
Stop copying links.
Install the extension once. A ⬇ IDMX chip appears over any video — hover it for quality choices. Magnet links and .torrent files open straight in IDMX, and your logged-in session comes along so private downloads just work.
- Finds streams on the page and counts them on the toolbar icon
- Pairs itself with the app — no token to copy
- Chrome, Edge, Brave, Vivaldi, Arc and other Chromium browsers
⬇ IDMX
Illustration of the hover menu.
For the terminal
The whole engine, one command away.
The same multi-network engine runs headless as idmx. Script it, run it on a server, drive it over SSH — or control the desktop app from any terminal.
zsh — idmx
idmx nets— your networks with live pingidmx get --json— machine-readable progress for scriptsidmx daemon— headless engine with a web dashboardidmx ls · pause · resume · net— control a running instance
Install from source: the script builds a release binary and copies it to /usr/local/bin. Prebuilt CLI binaries are listed in Downloads once published.
Coming soon Mobile
Wi-Fi and mobile data. Together. In your pocket.
We're bringing the multi-network engine to Android and iOS, so a phone can pull a file over Wi-Fi and cellular at once. It's early work — nothing to download yet.
Until then, your phone already works as a connection for the desktop app — plug it in over USB — and the app's web dashboard can be opened on a phone to watch or add downloads.
Download
Get IDMX 0.1.0
Free. No account. Pick your system.
First launch on macOS
Open the downloaded file and drag IDMX into Applications. Builds aren't notarized by Apple yet, so the first time, right-click IDMX → Open and confirm. After that it opens normally.
First launch on Windows
Windows SmartScreen may warn about an unrecognised app. Choose More info → Run anyway. Everything stays on your computer.
Browser extension
Not in the Chrome Web Store yet. IDMX unpacks it for you. Open your browser's extensions page, switch on Developer mode, click Show extension folder in IDMX, then drag the highlighted folder onto the page (or choose Load unpacked). That's it.
Release notes
What's new.
Questions
Straight answers.
Will it make my internet faster?
If you have more than one separate connection — say home Wi-Fi plus a phone on cellular — yes: the file comes down all of them at once. If your two connections share one router and one line, there's nothing extra to add, and IDMX says so instead of pretending.
How do I add my phone's data?
iPhone: plug it in, then on the phone switch on Settings → Personal Hotspot → Allow Others to Join. Android: switch on USB tethering in the phone's hotspot settings — on a Mac you also need the free TetherKit helper (a direct download for Macs with Apple silicon), because macOS can't share an Android phone's data by itself. IDMX has a step-by-step guide with live status on its Networks page.
Does it work with any website?
The server needs to support range requests (almost all do). If it doesn't, IDMX falls back to a single connection and tells you why.
Does streaming video (HLS/DASH) use every network?
Not yet. Videos that are plain files do. Streamed ones are fetched segment-by-segment by yt-dlp, several segments at a time, on one network.
Can a single-file torrent use two networks?
No — that would need a custom BitTorrent client. Multi-file torrents are divided by file across your networks; a single big file uses one.
Will it eat my mobile data?
Only if you let it. Each network has its own rules: mark it metered, set a daily or monthly cap, a speed limit, or exclude it per download.
Is anything sent to a server?
No account, no analytics, no cloud. The only network traffic is your downloads, plus an optional check for a newer version.
What about Linux?
The engine and the command-line tool are built for it, but the desktop app has only been verified on macOS so far. Windows and Linux builds are type-checked and being tested.