Your Windows utility belt

One tray icon. Every tool you actually use.

Spark Tray is a local-first Windows utility belt — download video and audio, bulk-queue lists, remove image backgrounds, and transcribe media, all on your machine.

Download for Windows

See what’s inside

Windows 10/11
Free
No account
100% local

See it in action

Your whole utility belt, one tray icon away

Click the tray, pick a tool, drop your input — and watch it run, all on your machine. Here's the real app doing exactly that.

9:41

Watch the full demo — all five tools

The utility belt

What's in the tray

Five focused tools, each doing one job well — all running right on your machine.

Video Downloader

Paste a link and pull the video or extract audio as MP3 — pick the quality, grab subtitles, and expand whole playlists. Works with thousands of sites.

Learn more

Audio Extractor

Drop in a video or paste a link and pull the sound out — copy the original track losslessly in an instant, or convert to MP3, M4A, WAV, FLAC, or Opus at the bitrate you choose.

Learn more

Bulk Downloader

Drop in a CSV or paste one link per line and Spark Tray queues them all — downloading in the background, honoring your limits, and retrying anything that fails.

Learn more

Background Remover

Cut the subject out of any photo and get a crisp transparent PNG in seconds — one image or a whole batch, with the option to drop in a solid color or new backdrop.

Learn more

Transcriber

Turn any audio or video into an accurate, timestamped transcript — export SRT, VTT, TXT, or JSON, choose the model for speed vs. accuracy, and translate to English on the fly.

Learn more

Why it's different

Local by design

No cloud in the loop. Spark Tray runs entirely on your machine — so your data stays yours, and stays put.

Cloud

Your PC

Private

Your files and URLs never leave your PC.

Instant

No uploads, no queue, no server round-trips.

Yours

No account, no subscription, no lock-in.

Transparent funding

How Spark Tray stays free

Spark Tray is free because you share a little idle bandwidth. While your PC is idle, the app shares unused network bandwidth through Massive, our vetted partner — that's what pays for development instead of a subscription.

Pauses on metered connectionsNever touches a capped or pay-per-GB network.
Backs off when you're activeYields the moment you need the network yourself.
Only a small fractionEven while active it uses just a sliver of your bandwidth.
Always disclosed at installSpelled out up front — no surprises, ever.

Using Spark Tray means opting in. Don't want to share? Uninstalling is the opt-out.

Read exactly how it's funded

Your PC

Massive

Idle — bandwidth flowsActive — paused instantly

Code-signedEnhanced Verification
Checksum-verifiedevery binary
Open about fundingno hidden strings
Crash-reporting opt-outoff by default

How it works

From download to done in three steps

No accounts, no setup wizard, no learning curve — just a helpful little tray icon.

1
Download & install
Grab the installer and run it. It installs just for you — no admin prompt, no reboot, done in seconds.
2
It lives in your tray
Spark Tray tucks itself into your system tray and waits there, quietly, until the moment you need it.
3
Open any utility, drop your input
Pick a tool, paste or drop whatever you've got, and get your result. Nothing ever leaves your machine.

Ready when you are

Bring the whole tray to your desktop

One small installer, four focused tools — no account, nothing in the cloud.

Download for Windows

Windows 10/11

Free forever, funded transparently.

Good questions

Questions, answered honestly

The things people ask before installing — no spin.

Yes — every core tool is free to use, forever. There’s no trial timer, no paywalled features, and no card required. We’d rather earn your trust than nickel-and-dime you. Curious how that adds up? See how Spark Tray is funded.