Palette.fm is the leading AI photo colorization tool in 2026, transforming black-and-white images into realistic, vibrant colors with advanced AI accuracy, 21+ filters, and keyword-based customization. It offers unlimited free previews (watermarked/low-res), paid credits/subscriptions for watermark-free high-res (up to 5000x5000px) outputs, batch processing, and natural lighting details. Ideal for photographers, historians, families restoring old photos, and creators seeking lifelike results without complex editing.