Hey Product Hunt 👋 I kept hitting the same wall with video upscalers: upload your footage to the cloud, wait, and pay credits per clip. Modern Macs are plenty fast for this, so I built OFF — 4K Upscaler to do it all locally. What it does: • Upscales 480p/720p/1080p video to 1080p or 4K with on-device Real-ESRGAN • Keeps the original audio, exports clean MP4 (H.264/H.265) • Photo upscaling too (2×/3×/4×) with a before/after slider • Batch + a live queue with progress and ETA • 100% offline and private — nothing is uploaded It runs comfortably on an 8GB M2 Air thanks to a segmented pipeline and RAM-aware tiling. To say thanks to early users, the first 100,000 get it lifetime free — no subscription, no per-video credits. I'd love your feedback, especially on quality and speed with your own clips. Happy to answer anything!

Offline Video Upscaler

Upscale video & photos to 4K, locally on your Mac

Upscale video & photos to 4K, locally on your Mac