Should I resize my images before I upload them so they are smaller?
You should not resize images before uploading them. There is no need. Rocketspark takes care of optimising the image sizes for you. Reducing file size beforehand only decreases resolution, potentially making images appear blurry or pixelated on your website.
The only exception is if your image exceeds 20 MB, which Rocketspark cannot accept. Additionally, resizing an image in the editor to dimensions larger than the original upload will significantly reduce quality.
Basically, the larger the images you upload, the easier they are to work with inside the editor as it will give you a wider range of possibilities in terms of image display; whether you want the image to appear large or small, Rocketspark will be able to adjust the file size to suit your needs as closely as possible, automatically.
Does Rocketspark automatically resize my images when I upload them?
The platform automatically adjusts image height, width, and file sizes based on how you customise them on your website. This means uploading larger images gives you greater flexibility for display options — whether you want them large or small, Rocketspark adapts accordingly.
As well as resizing your images, Rocketspark also automatically converts and serves them in modern, optimised formats:
- WebP — Supported by 96% of browsers, typically 25–35% smaller than JPEG
- AVIF — Supported by 94% of browsers, even better compression than WebP
This happens automatically behind the scenes. You just upload standard JPG or PNG images, and Rocketspark will serve the best format for each visitor's browser — giving your site faster load times without any extra work on your part.
Note: Very large images (over 2500 px) may be served as WebP rather than AVIF due to encoding time constraints.
Will my website become slow because of the sizes of the images?
Website speed is not significantly affected because the system compresses their file size as optimally as possible, so the file sizes are as small as they can be without the image losing its quality.