Clone this repo:
  1. 01a997e Merge "Create Android.bp for marisa-trie" by Tony Mak · 3 weeks ago master
  2. 5e8c07f Create Android.bp for marisa-trie by Tony Mak · 3 weeks ago
  3. dd2e280 Merge "Merge tag v0.2.6 (e54f296bb52d16693931c8b963744931ef1e37f7)." by Elliott Hughes · 3 weeks ago
  4. 9444d88 Merge tag v0.2.6 (e54f296bb52d16693931c8b963744931ef1e37f7). by Elliott Hughes · 4 weeks ago
  5. 4c5916d Merge "Clean out the obsolete copy of marisa-trie." by Treehugger Robot · 4 weeks ago


Project name


Project summary

MARISA: Matching Algorithm with Recursively Implemented StorAge

Latest version



Matching Algorithm with Recursively Implemented StorAge (MARISA) is a static and space-efficient trie data structure. And libmarisa is a C++ library to provide an implementation of MARISA. Also, the package of libmarisa contains a set of command line tools for building and operating a MARISA-based dictionary.

A MARISA-based dictionary supports not only lookup but also reverse lookup, common prefix search and predictive search.

  • Lookup is to check whether or not a given string exists in a dictionary.
  • Reverse lookup is to restore a key from its ID.
  • Common prefix search is to find keys from prefixes of a given string.
  • Predictive search is to find keys starting with a given string.

The biggest advantage of libmarisa is that its dictionary size is considerably more compact than others. See below for the dictionary size of other implementations.

  • Input
    • Source: enwiki-20121101-all-titles-in-ns0.gz
    • Contents: all page titles of English Wikipedia (Nov. 2012)
    • Number of keys: 9,805,576
    • Total size: 200,435,403 bytes (plain) / 54,933,690 bytes (gzipped)
ImplementationSize (bytes)Remarks
darts-clone376,613,888Compacted double-array trie
tx-trie127,727,058LOUDS-based trie
marisa-trie50,753,560MARISA trie


Build instructions

You can get the latest version via git clone. Then, you can generate a configure script via autoreconf -i. After that, you can build and install libmarisa and its command line tools via configure and make. For details, see also documentation in docs.

$ git clone
$ cd marisa-trie
$ autoreconf -i
$ ./configure --enable-native-code
$ make
$ make install

Source code license

  • The BSD 2-clause License
  • The LGPL 2.1 or any later version