This is something you will have to investigate with your course coordinator; some Higher Education Institutions have a recommended ePortfolio that they will guide you to use. However others have a number of different ePortfolios that they recommend and use.
Some ePortfolio platforms are available for free, examples of these include
(a) WordPress https://www2.le.ac.uk/offices/careers-new/information-for-students/apps/online-networking/creatingaeportfolios.pdf, https://www2.le.ac.uk/offices/careers-new/information-for-students/apps/online-networking/creatingaeportfolios.pdf.
(b) Using Google Sites to create an e-Portfolio, https://sites.google.com/site/resourcecentereportfolio/how-to-use-google-sites, http://electronicportfolios.com/google/.
(c) Blackboard Virtual Learning Environment (VLE) has its own built in e-Portfolio.
(d) LinkedIn to record and document learning and development and hence it can be considered an e-Portfolio. http://careerservices.bju.edu/job-searching-process/interview-portfolio/creating-an-eportfolio/linkedin-eportfolio-feature/
(e) Weebly weebly.com
(f) Pathbrite pathbrite.com
(g) FolioSpaces foliospaces.org
(h) me http://foliofor.me/
(i) PortfolioGen http://www.portfoliogen.com/
There are also a number of e-Portfolios that charge a fee. Examples include PebblePad, My Knowledge Web, and Halogen. . Note, with most e-portfolios, in order to be able to use all of the available features you will need to pay a fee.
The advantages and disadvantages of free and paid subscription e-Portfolios are discussed in our comparison of e-Portfolios document (include link)
Selecting a free on-line ePortfolio this might be of further help http://electronicportfolios.org/eportfolios/tools.html
Creating your own ePortfolio, this document might be a further help http://www.informationweek.com/software/7-ways-to-create-e-portfolios/d/d-id/1110673?