The library has a page listing early modern online sources: go to ‘Databases’ tab on the library catalogue main page and then select 'History' from the list of databases listed by subject. Within History you will find an option to view early modern resources.

You may also find this edited collection useful:

L. Sangha and J. Willis (eds.), Understanding Early Modern Primary Sources (London: Routledge, 2016) (ebook)

Some highlights:

Early English Books Online: E-book platform featuring full facsimile access to over 100,000 titles catalogued in three classic works of early English scholarship between c.1475 and 1700. The same texts are also included on the Historical Texts platform. https://search.proquest.com/eebo/index

Online Deposition Website of Irish Rebellion: Fully searchable digital edition of the 1641 Depositions at Trinity College Dublin Library, comprising transcripts and images of all 8,000 depositions, examinations and associated materials in which Protestant men and women of all classes told of their experiences following the outbreak of the rebellion by the Catholic Irish in October 1641. http://1641.tcd.ie/

Civil War Petitions - a fully-searchable digital edition of over 4,000 petitions for relief from maimed soldiers and war widows. It includes the accompanying certificates from military commanders, medical practitioners and local communities in support of their cases. https://www.civilwarpetitions.ac.uk/ 

America’s Historical Imprints: covers 1639 to 1800. It includes a collection of early American books, pamphlets, broadsides, government documents and other printed materials. http://encore.lib.warwick.ac.uk/iii/encore/record/C__Re1000144__Samericas%20historical%20imprints__Orightresult__U__X6?lang=eng&suite=cobalt

British History Online: Medieval and early modern sources for British history. Particular strengths include parliamentary and local history (e.g. OS maps). http://www.british-history.ac.uk/

The Cecil Papers: The Cecil Papers consists of the correspondence of William Cecil, Lord Burghley (1520-1598) and his son, Robert, the 1st Earl of Salisbury (1563-1612). These men dominated the administration of government during the reign of Elizabeth I. https://search.proquest.com/cecilpapers/history/fromDatabasesLayer?accountid=14888

Colonial State Papers‎ (1574-1757): The Colonial State Papers provides access to over 7,000 manuscript papers and 40,000 bibliographic records concerning English activities in the American, Canadian, and West Indian colonies between the sixteenth and eighteenth centuries. https://search.proquest.com/csp/history/fromDatabasesLayer?accountid=14888

Connected Histories: Cross-searches a range of digital resources relating to British history in the period 1500 – 1900, including the British Museum Images, British History Online, British Newspapers 1600-1900, Parliamentary Papers, Bodleian Library’s collection of ephemera, Old Bailey online – and many more. http://www.connectedhistories.org/

Electronic Enlightenment: Edited correspondence of the early modern period, linking people across Europe, the Americas and Asia from the early 17th to the mid-19th. http://0-www.e-enlightenment.com.pugwash.lib.warwick.ac.uk/

Empire Online: A searchable dates of images and printed documents from 1492-1969, relating to Africa, the Americas, Australasia, Oceania and South Asia. Accompanied by essays from leading scholars in Empire Studies. http://0-www.empire.amdigital.co.uk.pugwash.lib.warwick.ac.uk/

English Broadside and Ballad Archive:Includes a range of ballads and broadsides from the C16th and C17th. http://ebba.english.ucsb.edu/

European Views of the Americas: 1493-1750: Index and comprehensive guide to printed records about the Americas written in Europe before 1750 containing more than 32,000 entries. http://web.b.ebscohost.com/ehost/search/advanced?sid=026df28f-5a02-42b5-8735-588e735fcce8%40sessionmgr113&vid=0&hid=101

Old Bailey Online: Proceedings of the criminal trials of the Old Bailey, 1674-1913. http://www.oldbaileyonline.org/

State Papers Online 1509-1782: a searchable archive of 16th, 17th and 18th-century State Papers Domestic, Foreign, Scotland, Ireland and Registers of the Privy Council. http://0-go.galegroup.com.pugwash.lib.warwick.ac.uk/mss/start.do?p=SPOL&u=warwick&authCount=1