Best free Custom file upload Shopify apps in 2026 [Updated]

The Best Free Shopify apps for custom file uploads let merchants collect and manage customer-uploaded files, images, and documents directly through their product pages. These essential tools enable personalized ordering experiences - from prescription lens uploads and custom sticker designs to product customization with live previews. Whether you need simple image uploads or complex gang sheet builders, these free apps help handle customer files while maintaining a smooth checkout process. Each solution offers unique features for different business needs, from basic file collection to advanced product configurators with multiple upload fields.