8K Video Upscaler
Resize short videos to 8K or 4K dimensions using browser interpolation, without AI detail reconstruction.
Choose video files to begin. Files stay in this browser.
This is 8K resizing, not AI super-resolution: it cannot recover missing detail. 8K encoding is demanding and may not work on your device. Try 4K if export fails. Limit: one clip up to 30 seconds, 300 MB.
Output is re-encoded WebM, or MP4 when supported. Processing runs in real time; keep this tab visible. Clips are fitted inside a 16:9 frame with black bars where needed. Unsupported codecs or encoders produce an error rather than an incomplete download.
How this tool works
Select a short video and target resolution, then export. The tool fits each frame to 7680 × 4320 or 3840 × 2160 with high-quality interpolation. The browser encoder must support those dimensions. Smaller source videos will look larger, but are not transformed into genuine high-detail footage.
Quality and compatibility
No external editing engine or upload is needed. Browser interpolation and recording change compression and may change timing. Use a current desktop browser, keep the tab visible and review every downloaded file. Audio/codec support depends on your browser.