UpSynth is a browser-based AI tool that lets you upscale, restore, and modify images with precision. It offers three core tools: Upscale for intelligent enlargement and artifact reduction, Restore for selectively reconstructing distorted areas, and Modify for prompt-based edits with multiple variants. You can control the AI’s creativity with a magic value, and undo steps anytime. Ideal for old photos, illustrations, and artwork, UpSynth helps you achieve razor-sharp results without losing the original character.