Web Application Open Platform Interface

Web Application Open Platform Interface (WOPI) is a protocol that enables a client to access and change files stored on a server. The protocol was first released as version 0.1 by Microsoft in January 2012,¹ and as of August 2025 the specification is at version 15.1. The protocol has been adopted by applications outside of Microsoft, such as by Collabora Online, Google, ownCloud and Nextcloud.²³⁴⁵

References

"[MS-WOPI]: Web Application Open Platform Interface Protocol". Microsoft. 2020-11-17. Retrieved 2021-04-17.
"How to integrate Server for hosting Collabora Online". Collabora. Retrieved 2025-03-17.
Palmer, Jody Hupton; Cowan, Gary Clayton; Reynolds, Robert David James (2018-08-09). "Web application open platform interface (wopi) server architecture and applications for distributed network computing environments". Google. Retrieved 2021-04-17.
"Microsoft Office Online / WOPI Integration".
"Wopi - Utgivelser". Nextcloud. 2020-10-25. Retrieved 2021-04-17.

[1] "[MS-WOPI]: Web Application Open Platform Interface Protocol". Microsoft. 2020-11-17. Retrieved 2021-04-17.

[2] "How to integrate Server for hosting Collabora Online". Collabora. Retrieved 2025-03-17.

[3] Palmer, Jody Hupton; Cowan, Gary Clayton; Reynolds, Robert David James (2018-08-09). "Web application open platform interface (wopi) server architecture and applications for distributed network computing environments". Google. Retrieved 2021-04-17.

[4] "Microsoft Office Online / WOPI Integration".

[5] "Wopi - Utgivelser". Nextcloud. 2020-10-25. Retrieved 2021-04-17.

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