| Document and Entity Information | Dec. 10, 2020 |
| Document and Entity Information [Abstract] | |
| Entity Central Index Key | 0001506439 |
| Amendment Flag | false |
| Document Type | 8-K |
| Document Period End Date | Dec. 10, 2020 |
| Entity Registrant Name | SharpSpring, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-36280 |
| Entity Tax Identification Number | 05-0502529 |
| Entity Address, Address Line One | 5001 Celebration Pointe Avenue |
| Entity Address, City or Town | Gainesville |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32608 |
| City Area Code | 888 |
| Local Phone Number | 428-9605 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Trading Symbol | SHSP |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
