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Life & fun · February 3, 2016

ION, a JSON alternative – Versatile, compact, fast, binary data format

A Java toolkit for working with the IAP network protocol and its data format ION. - jjenkov/iap-tools-java

ION, a JSON alternative – Versatile, compact, fast, binary data format launched on February 3, 2016 with 29 votes, #1,873 of 4,386 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 10 years on.

In plain words

ION is a Java toolkit for working with the IAP network protocol and its associated ION data format. ION serves as a binary alternative to JSON, designed to be versatile, compact, and fast for data serialization and transmission. The toolkit is intended for Java developers who need to implement IAP network communication or work with ION-formatted data in their applications.

written from the facts on this page · September 2026

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