I was tired of paying for tools that don't own their own time.
For years I relied on whatever sketchy YouTube downloaders I could find — most of them bloated with ads, many carrying viruses that steal data and sell it. The "free" ones locked high-res downloads behind paywalls. When my footage was bad quality, I had to pay a $50 license just to upscale it with tools like Real-ESRGAN, except Real-ESRGAN has no GUI. Most people don't want to touch the terminal, so they end up paying for a wrapper app instead.
I built OPNduck because I was tired of paying subscription fees for something I could already do on my own GPU. No terminal required. No login. No limits. No monthly bill. And I'm not hiding where the inspiration came from.
IF YOU WANT OTHER OPTIONS
If OPNduck isn't for you, these projects and tools deserve your time — they inspired this one and they're genuinely good.
WHY LOCAL-FIRST
The pitch cloud tools won't make
Every "cloud AI upscaler" is renting you access to a GPU. You already own one. It's idle most of the day, sitting under your desk while a subscription service queues your file behind everyone else's — and charges you monthly for the privilege of waiting.
Uploading a 40GB source file so it can be "processed in the cloud" is slower than just processing it, full stop, on an ordinary home connection. Local-first isn't a privacy feature bolted onto the real product — it's faster, because there's no upload step, no queue, and no render slot you have to pay extra to skip.
Most "free" upscalers and interpolation tools cap your output resolution, watermark the result, or throttle you until you upgrade. OPNduck doesn't have a paid tier to upsell you into — there is no tier at all. It's the whole tool, or nothing.
And it's open source. Read the code that touches your media files, or don't — but the option exists, which is more than you get from a closed binary that phones home to a license server before it'll let you export.
TYPICAL CLOUD TOOL
OPNDUCK
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HONEST ROADMAP
What works, and what doesn't yet
OPNduck is beta and this is the whole truth. The downloader, converter, upscalers, interpolation, subtitles, AI audio and trimmer all work today, but expect rough edges. The Windows installer is unsigned and the maintainer has not tested it on real Windows hardware.
PLANNED · NOT DONE
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