NextGenUp vs SupaRes

NextGenUp is a free tool for enlarging images and video, available as desktop software for macOS, Windows 10/11 and Linux, or as a self-hosted web app. Processing runs on the user's hardware: its models, FFmpeg and server run locally, and files are not sent to cloud processing. Images can be enlarged to 8K using Quick, Quality, Enhance or Ultra modes; video upscaling reaches 4K through basic and professional AI modes. Enhance reduces noise and blur without enlarging the image, while GFPGAN v1.4 detects faces and restores detail. Real-ESRGAN handles super-resolution. Processing uses the CPU by default and accelerates with a GPU when available. The browser app can use WebGPU on Chrome or Edge 113 and later. The software is MIT licensed and needs no subscription, watermark or account. There is no trial limit. Web files are limited to 2 GB, and older processed files are automatically removed after 24 hours. PNG is the listed output format.

SupaRes is an AI image enhancement platform that upscales, restores, denoises, fixes, and optimizes images. Its listed tools include super-resolution, face enhancement, tone adjustments, artifact reduction, low-light boost, and noise removal. An image optimization engine is intended to balance file size with visual quality. The browser-based image manager includes cloud storage and team collaboration, and API access supports processing through HTTP requests. The API accepts direct uploads or public image URLs, supports webhooks, and documents external storage such as AWS S3. API calls require an API key and HTTPS, with HTTP Basic Auth or Bearer Auth available. Temporary processed-image URLs are deleted after one hour; the documentation says external storage URLs can point to permanent storage. SupaRes sets one credit per processed image, even when multiple available enhancements are applied. The Free plan is free and includes a one-time quota of 10 credits, a 64-megapixel limit, and one user. Paid monthly plans start at $9.00 per month for Basic, with 100 credits and a 128-megapixel limit. SupaRes is based in Berlin, Germany, and has no desktop app.