I think you can do this on the SoGive platform. Have sent Sanjay a message.
alexrjl is correct, SoGive can do this.
a “progress bar” of how much has been raised and what the target is
a section showing other people who have donated (and options to anonymise name or amount or both)
customisable sections for the person running the fundraiser, including ability to customise images and text
Here’s an example: https://app.sogive.org/#fundraiser/sanjay.DRHEz44p.ccdce9
If you want minimal clicks from seeing the fundraiser to having donated, you could simply include one of these links and once you’re on that page you have a donate button right there.
If this is of interest to you let me know on firstname.lastname@example.org. Also, might be worth checking where you are based. This was originally designed for the UK, and then adapted for overseas (e.g. USA)
Great! I’ve sent Sanjay an email—my thanks to both of you.