Instant messaging software for PC that fits perfectly on any business or home


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Download Spark 3.0.2

  -  59 MB  -  Open Source
  • Latest Version:

    Spark 3.0.2 LATEST

  • Requirements:

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating:

    Click to vote
  • Author / Product:

    Igniterealtime / Spark

  • Old Versions:

  • Filename:


Spark is an Open Source, cross-platform IM client for Windows PC optimized for businesses and organizations. It features built-in support for group chat, telephony integration, and strong security. It also offers a great end-user experience with features like in-line spell checking, group chat room bookmarks, and tabbed conversations.

The app is a full-featured instant messaging (IM) and group chat client that uses the XMPP protocol. The Spark source code is governed by the GNU Lesser General Public License (LGPL), which can be found in the LICENSE.html file in this distribution. The app also contains Open Source software from third-parties. Licensing terms for those components are specifically noted in the relevant source files.

The Internet has revolutionized the way we connect with acquaintances, and one of its benefits is the availability of instant messaging. Spark is a Java-based client that provides features similar to those of popular messengers, including file transfers, group chat, and voice calling.

Although Spark is primarily designed for businesses and organizations, it can also be used by individuals who want an alternative to the popular messaging apps. The setup process is straightforward, requiring only a username, password, and server.

Spark's interface is customizable but not exceptional. It offers support for avatars, emoticons, and user-defined colors, but the settings menu can be overwhelming. The conversation window has standard options, including sending files and taking screenshots.

Spark's interface is well-organized, and conversations can be grouped into tabs, making it easy to chat with multiple users simultaneously. The settings menu offers options for group chat, media, privacy, login, file transfers, sounds, appearance, notifications, and taskbar flashing.

It runs smoothly and doesn't consume many resources. It includes a spell checker and a "Buzz" tool that requests the user's attention.


Overall, Spark for PC is a decent instant messaging application that offers basic features and is user-friendly. It could be a viable alternative to more popular messaging apps.

Also Available: Download Spark for Mac

What's new in this version:

- Roar custom popup can't be closed after closing the chat window
- TicTacToe throws exception for username with a space
- Roar ignores Popup display settings
- Save password from Preferences menu
- Chat window freezes when opponent is typing to you

- Update Roar Plugin to 1.0 version

- Roar popups shouldn't be shown when a tab is in focus
- Don't show empty broadcast message
- Raise the minimum requirements for plugins
- Upgrade XStream to v1.4.20 or later
- Update HTTP Client library

New Feature:
- Update Translator plugin to use other translation API

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