Break down silos with open APIs
Many of the images and audio/visual resources that are fundamental to research exist in silos, with access restricted to locally-built applications. IIIF gives you and your audience freedom to work across barriers.
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The Wellcome Collection uses IIIF to make medical and scientific materials available via the custom-built Wellcome Viewer, and to offer multiple image download sizes to users.
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The SAT Daizokyo Database Project includes individual mandalas with over 400 IIIF annotations, using Mirador.
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McGill University's Distributed Digital Music Archives & Libraries Lab uses the Presentation API to integrate audio and moving images.
View demosSimplify and enhance your work
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Great for researchers
Examine, compare, annotate, and share. IIIF enables easy use across repositories, with tools to aid research and presentation.
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Efficient for developers
Publish once, reuse often. IIIF serves high-quality digital objects to your own site and others in many formats, without vendor lock-in.
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Practical for leaders
Share your collections as widely as possible. IIIF is a cost-effective way to serve billions of digital objects with open-source, community-driven ethics.
Start building
The six IIIF APIs fit together to deliver endless possibilities.
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Image API
Retrieves images from anywhere in the world and allows the user to select an area of the image and to resize, rotate, and edit the quality.
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Presentation API
Packages each image with its metadata so users know the origin, title of the image, and even what page of a book the image was from.
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Authorization Flow API
Control and restrict access by creating a link to a user interface for logging in and services that provide credentials.
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Content Search API
Perform search for text within or annotations related to digital objects.
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Change Discovery API
Harvest any changes published by organizations that deliver digital objects.
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Content State API
Generate a very specific link to a particular view of an object, like a specific area on a particular page rotated at a certain angle.
Join the community
IIIF community groups tackle a range of topics, from implementing IIIF for specific communities to crafting new technical specifications.
Learn moreFunded by global technology leaders
IIIF is funded by a 67-member global consortium, and leveraged by aggregators, research institutions, national libraries, archives, museums, software companies, and digital agencies around the world. Consortium members include:
Latest news
IIIF Consortium Welcomes KB National Library of the Netherlands
| IIIF-C Staff
The International Image Interoperability Framework Consortium is delighted to announce KB National Library of the Netherlands as a Full Member.
Executive Committee Election Results
| IIIF Consortium Staff
Congratulations and welcome to the institutions recently elected to the Executive Committee.
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IIIF Online Training March 2025 (5 Day course)
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IIIF Online Training May 2025 (5 Day course)
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IIIF Annual Conference & Showcase 2025
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IIIF Online Training September 2025 (5 Day course)
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