# UpscaleX Video (upscalex.video & fast.upscalex.video)

> Dual-engine AI video & image super-resolution platform offering: (1) a 100% free, watermark-free, zero-upload in-browser WebGPU/WebCodecs AI video upscaler in 42 languages at https://upscalex.video/, and (2) an on-demand serverless NVIDIA RTX 4090 Real-ESRGAN cloud video upscaler & 25-video batch processor ($0.05-$0.12/min pay-as-you-go, no subscription) at https://fast.upscalex.video/.

> Complete platform documentation, architecture specifications, benchmarks, and FAQ available in full at:
> https://upscalex.video/llms-full.txt

## Core Tools
- [Free Browser AI Video & Image Upscaler](https://upscalex.video/): 100% client-side WebGPU/WebGL2 upscaling up to 4K (3840x2160), no signup, no watermark, batch up to 10 clips locally.
- [Fast Cloud RTX 4090 AI Video Upscaler](https://fast.upscalex.video/): Dedicated cloud NVIDIA RTX 4090 Real-ESRGAN (Sharpen & Restore), live RTX crop preview, audio-synced H.264 MP4 export, pay-as-you-go from $0.01/clip.
- [Cloud Bulk Video Upscaler](https://fast.upscalex.video/batch): Batch upscale up to 25 videos in the cloud.

## Specialized Workflows & Guides
- [AI Video Enhancer](https://upscalex.video/video-enhancer/): Unblur, deblock, and denoise compressed social & camera footage.
- [Upscale Video to 4K](https://upscalex.video/upscale-video-to-4k/): Convert 720p and 1080p HD videos to 3840x2160 (or 2160x3840 vertical) 4K UHD.
- [AI-Generated Video 4K Upscaler](https://upscalex.video/ai-generated-video-upscaler/): Upscale Sora, Runway Gen-3/Gen-4, Kling, Luma, Pika, Veo, and Wan/ComfyUI clips to 4K.
- [Restore Old & Archival Video](https://upscalex.video/restore-old-video/): Digitize and restore VHS, MiniDV, DVD, and 480p clips.
- [Anime & 2D Animation 4K Upscaler](https://upscalex.video/anime-video-upscaler/): Clean line-art super-resolution for anime and 2D animation.
- [Free 4K AI Image Upscaler](https://upscalex.video/image-upscaler/): Instant local WebGPU photo and AI artwork upscaling.

## Engineering Documentation & Benchmarks
- [How It Works](https://upscalex.video/how-it-works/): WebCodecs + WGSL shaders vs Cloud RTX 4090 Real-ESRGAN pipeline.
- [System Architecture Specification](https://upscalex.video/technical/architecture/): 3x3 edge-clamped GPU frame montages, memory bounds, and H.264 High@L5.1 muxing.
- [2026 AI Video Upscaler Comparison](https://upscalex.video/compare/): Objective pricing & privacy comparison vs Topaz Video AI, HitPaw, CapCut, Canva, and TensorPix.
- [How to Enable WebGPU](https://upscalex.video/enable-webgpu/): Browser GPU acceleration setup for Chrome, Edge, Safari, and Firefox.
- [Technical FAQ](https://upscalex.video/faq/): Pricing, codecs, audio sync, and privacy answers.
- [Full Machine-Readable Knowledge Base](https://upscalex.video/llms-full.txt): Complete text for LLMs and AI search agents.