BigImg is a free-in-the-browser AI image toolkit. Drop in a JPG, PNG, WEBP or AVIF and upscale 2x–16x, remove the background, erase a watermark, denoise, enhance, or make an ID photo. No signup for the daily free quota. Anime and photo modes. Pro adds faster servers, 50MB uploads, batch processing and history. Developers get an API and a one-line embed widget. Built for people who want Bigjpg-style web upscaling without the old free-tier size cap, and without installing a desktop app.