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A simple script exporting chats from a rocket chat instance using the public REST API. Useful if no administrative access is possible.
Apache License 2.0

Rocket Chat Exporter CLI #

A simple Java CLI tool to export the messages from a Rocket Chat server. It currently supports groups, channels and direct message export. You can either choose a single conversation or export all in a batch. As export format this tool only supports the Slack CSV output format as of now, but adding new output format is quite easy (check out the ExportFormat interface).

This tool uses the RocketChat API and is useful for situations where the user does not have administrative access to the server.

Quickstart #

Provide the tool with your host URL, output file and username.

java -jar .\rocketchat-exporter.jar --host "" -o "./out" -u ""

After that the password will be prompted. The tool will print all available channels. Choose one and the resulting export will be written to the provided file. Example output:

Please enter your RocketChat password: ************
Authentication successful (fname.lastname).

What type do you want to export:
	(1) group
	(2) channel
	(3) direct message
Select option (1-3):

Please choose the channel you want to export:
	(1) [ALL]
	(2) channel a
	(3) channel b
	(4) channel c
Select option (1-4):
Successfully exported 122 channel messages to 'out\channel_channel-b_20190927013945.csv'

Manpage #

Usage: export [-hV] [--debug] [-m=<maxMessages>] [-o=<file>] -t=<host>
Exports rocket chat messages from a specific group/channel.
      --debug             Add debug log output to STDOUT.
  -h, --help              Show this help message and exit.
  -m, --maxMsg=<maxMessages>
                          How many messages should be exported.
  -o, --outFile=<file>    The file or directory to write the export data to.
                            Will write to current directory with auto generated
                            filename if this arg is omitted. If you want to
                            export multiple conversations you must pass a
                            directory not a file.
  -t, --host=<host>       The rocket chat server. E.g. ''
  -u, --user=<username>   RocketChat username for authentication.
  -V, --version           Print version information and exit.

Requirements #

Download #

Grab jar from the latest Release

Development #

Build with Maven #

Use the Maven wrapper to create a jar including all dependencies

mvnw clean install

Checkstyle Config File #

This project uses my common-parent which centralized a lot of the plugin versions as well as providing the checkstyle config rules. Specifically they are maintained in checkstyle-config. Locally the files will be copied after you mvnw install into your target folder and is called target/checkstyle-checker.xml. So if you use a plugin for your IDE, use this file as your local configuration.

License #

Copyright 2019 Patrick Favre-Bulle

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Patrick Favre
Patrick Favre
Software Engineer currently working as architect, backend dev, cloud engineer, IT ops rookie. Cryptography and security are my passions.