The council will pledge to give you up to half your fund-raising target, up to a maximum of £2,000, if you raise the other half through Crowdfund Hertfordshire.
Eligible projects include building improvement works, delivery costs and training.
Suzanne Rutland-Barsby, executive member for communities, said: “In addition to raising funds, this is a good opportunity to test out a new idea and see if the crowd will get behind it.
“Your campaign itself will create awareness of your project and we expect that groups will find new volunteers this way too.
“Eligible projects will help to create stronger and more connected communities and schemes which lead to improved health and wellbeing for people living in East Herts.”