Using GPU acceleration Resize Pro is the fastest Texture2D resize tool for Unity.
Has no limits on texture formats and works even with textures that aren’t Read/Write enabled.
Inside Editor textures can be resized directly from Project window or by using batch converter with builtin Texture Converter tool.
Run-time API adds ResizePro() extension methods to the Texture2D class.
Compatible with all render pipelines.
Asset is already included in the Amazing Tools Bundle.
Note:Scripts are packed in dll.
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Supported Unity versions:
• Unity 2019.4, 2020.3 and 2021.3 LTS versions are fully supported.
• Unity alpha and beta versions are never supported.
• Unity ‘tech release’ versions are not officially supported.
Original_Link: https://assetstore.unity.com/packages/tools/utilities/resize-pro-61344