OFF — 4K Upscaler
Output
4K
Codec
H.265
Audio
Kept
Upscaling — beach_clip.mp41080p → 4K · ETA 2m 10s
Real-ESRGANDetailedRAM-awareSegmented
OFF turns 480p, 720p and 1080p footage into sharp 4K using on-device Real-ESRGAN AI — your original audio kept, your files never leaving your Mac.
New to the app? Installation Guide →
Join early and unlock OFF — 4K Upscaler free, for life. No subscription and no per-video credits, ever. It's our thank-you to the first 100,000 people on board.
Claim your lifetime accessPowerful enough for pros, simple enough for anyone. No cloud uploads, no waiting in queues you don't control.
Bring 480p, 720p and 1080p clips up to razor-sharp 4K with on-device Real-ESRGAN super-resolution. Portrait or landscape, any length.
Sharpen and enlarge images with a live before/after slider, optional sharpness, brightness, contrast and saturation, and match-original-file-size export to PNG or JPG.
Original music and voice are muxed back in untouched. Export clean MP4.
Drop one file or a hundred — the Video and Image screens flip to batch automatically and upscale the whole list, each clip saved hands-free.
Compare any two videos or photos with a synced slider or side-by-side, looped and in sync.
RAM-aware tiling and a segmented pipeline keep long videos moving without stalls, and without hogging your Mac. Runs comfortably on an 8 GB M2 Air.
Watch real-time progress and estimated time per job — shown inside the Image and Video tabs and the floating Now bar. Stack jobs, reorder the queue, keep adding more while one runs.
Tells you the free space a 4K job needs, keeps a safety buffer, and cleans temp files automatically.
Everything runs locally. Your videos and photos never get uploaded anywhere.
OFF checks for new versions and downloads them right inside the app — from Settings, on your terms.
The left is the original. The right is upscaled. Real photos look even better.
A floating bar sits quietly at the bottom while you work. Tap it and it expands into the full processing queue — watch live progress, reorder what's next, or remove jobs without leaving what you're doing. It's live at the bottom of this page right now, try it.
Cloud upscalers charge credits for every single video. OFF runs on the Mac you already own.
Cloud video upscaling typically costs about 50 credits per clip. Slide your usage and see the gap.
Based on Google-style credit pricing: $20→1,000, $100→10,000, $200→25,000 credits, at 50 credits per video upscale. OFF runs locally at no per-video cost.
Add a video or photo — or several at once. OFF reads the resolution and recommends the best settings.
Choose 1080p or 4K, pick Fast, Detailed or Max, and the codec. See the storage and time estimate upfront.
Watch live progress with an ETA. Your audio is kept and the MP4 is saved right where you want it.
No. All processing runs on-device with Real-ESRGAN and FFmpeg bundled inside the app. Nothing is uploaded, so it works fully offline and keeps your footage private.
OFF uses RAM-aware tiling and a segmented pipeline so it stays efficient — it's designed to run comfortably on an 8 GB M2 Air without taking over your machine.
Input from 480p up to 1080p (portrait or landscape), output to 1080p or 4K as MP4 with H.264 or H.265. Photos export as PNG or JPG at 2×, 3× or 4×. Sources already at 4K are skipped — no pointless upscales.
Yes. The original music and voice track is muxed back into the upscaled MP4 untouched.
OFF checks for new versions and can download and install them right from Settings — only when you choose to.
Crisp 4K video and photos, your audio kept, fully private — running on the Mac you already own.
Download for macOSSetting up for the first time? Installation Guide →