Yes, there may be file size limits, which may vary depending on the policies of the file sharing site. In general, capacity limits may differ between free and paid accounts.

To share an uploaded file, select it and select the 'Share' option. You can then share the file with others by choosing your preferred sharing method (link sharing, email sharing, etc.).

Anyone can upload without registering as a member. Uploaded files can be easily shared as a sharing link is provided.