====== mtools ======
|PyPI version| |PyPI pyversions| |PyPI license|
mtools is a collection of helper scripts to parse, filter, and visualize
MongoDB log files (`mongod, mongos). mtools also includes mlaunch, a
utility to quickly set up complex MongoDB test environments on a local machine,
and mtransfer, a tool for transferring databases between MongoDB instances.
.. figure:: https://raw.githubusercontent.com/rueckstiess/mtools/develop/mtools.png :alt: mtools box
What's in the box? ------------------
The following tools are in the mtools collection:
mlogfilter __
slices log files by time, merges log files, filters slow queries, finds
table scans, shortens log lines, filters by other attributes, convert to
JSON
mloginfo __
returns info about log file, like start and end time, version, binary,
special sections like restarts, connections, distinct view
(requires numpy)
mplotqueries __
visualize log files with different types of plots (requires matplotlib)
mlaunch __
a script to quickly spin up local test environments, including replica sets
and sharded systems (requires pymongo, psutil, packaging)
mtransfer __
an experimental script to transfer databases between MongoDB instances by
copying WiredTiger data files (requires pymongo and wiredtiger)
For more information, see the mtools documentation
__.
Requirements and Installation Instructions ------------------------------------------
The mtools collection is written in Python, and most of the tools only use the standard packages shipped with Python. The tools are currently tested with Python 3.11, 3.12, 3.13, and 3.14.
Some of the tools have additional dependencies, which are listed under the
specific tool's section. See the installation instructions
__ for more information.
The mtools suite is only tested with
actively supported
(non End-of-Life) versions of the MongoDB server. As of October 2026,
that includes MongoDB 7.0 or newer.
Recent Changes --------------
See Changes to mtools __
for a list of changes from previous versions of mtools.
Contribute to mtools --------------------
If you'd like to contribute to mtools, please read the contributor page
__ for instructions.
Disclaimer ----------
This software is not supported by MongoDB, Inc. __
under any of their commercial support subscriptions or otherwise. Any usage of
mtools is at your own risk. Bug reports, feature requests and questions can be
posted in the Issues
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