Hi Product Hunt 👋 I built Crispix because every "free" AI upscaler I tried wanted me to sign up, upload my photos to their servers, or slapped a watermark on the result. [Your own trigger, e.g. restoring old family photos / sharpening screenshots for docs.] So I flipped the approach: instead of a server, the AI runs on your own device. Crispix loads Real-ESRGAN models into the browser and runs them with WebGPU (falling back to WASM on older devices). Your image never leaves your computer, and it costs nothing to run, so it can stay free with no account and no watermark. Along the way I added a dedicated model for anime/illustrations, a pixel-art upscaler, and a small JS SDK so developers can drop the same enhancer into their own sites. Known limits: very large images are capped (around 4096px) to keep the browser from running out of memory, and speed depends on your GPU. I'd love feedback on output quality and speed on your device, and which tools you'd want next. Thanks for checking it out! 🙏

Crispix

Upscale & enhance photos with AI, 100% in your browser

Upscale & enhance photos with AI, 100% in your browser