There are several photo websites making life easier. I default
to a German site, called Picr.de Reliable, fast, resizing on autopilot so always a perfect fit for publication on forums or just resizing to please email servers with only an url in the text message and not an overload of attachments.
Department technicalities, translated from their website where you have to register:
" One click opens or closes the options. The default setting is already perfect in 99% of cases and ideal for online forums. Select size and output format as usual. If you want to upload an extremely large number of images in one go, option two is ideal, as you then only copy thumbnails to the forum that can be loaded quickly and the reader can enlarge those that interest him. For auctions, the last option. Use keywords to find images more quickly later. This way you can easily reuse or quickly delete images. Allowed image formats: gif, jpeg, pdf and png.
Each image may be a maximum of 36 megapixels in size. The old file size limit of 24 megapixels was lifted at the beginning of 2020. The number is arbitrary. "