Activity › Forums › Salesforce® Discussions › What is blob in Salesforce? Salesforce® Discussions What is blob in Salesforce? Posted by Aditya on November 24, 2020 at 3:55 PM What is blob in Salesforce? Marziya replied 5 years, 6 months ago 3 Members · 2 Replies 2 Replies Deepak Member November 25, 2020 at 5:59 AM Blob is a collection of binary data stored as a single object. You can convert this data type to String or from String using the toString and valueOf methods, respectively. [adinserter block='9'] Marziya Member November 25, 2020 at 9:55 AM This data type converts the attachments into a single object. Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me