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Stable release
1.1 / December 3, 2010
Written inJava
Operating systemCross-platform
Typekey-value store
LicenseApache License 2.0

TreapDB is a kind of NoSQL data store, and it is based on Treap data structure. Treap is a randomized balanced search tree, which has O(log(n)) complexity to insert or find a key. TreapDB supports many operations besides "get" and "set". For example, "prefix foo" fetch all the pairs whose key startswith "foo". TreapDB can be used in two ways: embedded library or standalone server.[1][2][3]

TreapDB is sponsored by Sino-German Joint Laboratory of Software Integration.


  1. ^ "TreapDB official home page".
  2. ^ "TreapDB report in is the biggest Java programming community in China)".
  3. ^ "TreapDB is a recommended project by OSChina( is a famous open source community in China)".

External links[edit]