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Chat instantly to your website visitors with Chatstack

Chatstack is the leader in self-hosted PHP live chat software for your website and has many compelling advantages over competing live chat solutions.
Quick Installation

Quick Installation

Chatstack is a self-hosted chat application, powered by PHP and MySQL and is quick and easy to install on your website, especially for non-technical users.
Easy to Use

Easy to Use

Send messages to your customers and respond quickly to their needs with our user friendly interface, allowing you to build and nurture customer relationships.
Cost Effective

Cost Effective

With no subscription and no ongoing monthly fees, our online chat software is the most cost effective customer service solution for your businesses web site.

Customize our chat widget to suit your website design

Our live chat widget or optional popup client window is fully customizable to include your own brand logo, colors and desired welcome message. Advanced customization is also available by editing the template CSS files for a fully custom design.
Customizable Chat Tab

Self-hosted with apps for Web, Windows, Mac, Linux, iPhone and Android

Chatstack is available on major platforms with our Windows, Mac and Linux apps that can be installed on all your team computers. After you have placed the live chat HTML code snippet on your web site, you can start chatting with visitors and customers. Chatting with your customers will help you provide exceptional customer service leading to improved customer satisfaction and increased sales.
Live Chat Software by Chatstack - Web App
Jamie Whitney - Customer Testimonial
“I've been using Chatstack chat software for many years. I find it indispensable, and it has been a great way to provide immediate sales assistance. The iOS app makes it so that I never miss a sales opportunity, even when mobile.”
Jamie Whitney - Squirrelcart

Chat with and monitor your customers as they browse your website

Easily monitor your customers that are browsing your web site with our admin panel, where you can view their country location, what they are looking at, where they have been and how long they have been on your web site. The visitor details also includes specific information about the visitor's browser version, operating system, screen resolution, HTTP referrer and IP address which can aid our support agents in providing outstanding technical support.
Saskia van Vliet - Customer Testimonial
“Chatstack boosted our sales and our customers are happy the chat feature finally has been added to our website. Besides these fantastic benefits, their support team is outstanding with fast response times and their problem solving abilities are much better than we expected. We think the price and usability is spot on!”
Saskia van Vliet - ServerDirect

Grow your business and engage your customers by using live chat software

Chatstack provides you with the tools that will allow you to chat and engage your customers to increase conversions on your web site. You can also see who is currently browsing your web site in real-time and offer immediate customer support with our proactive chat feature.
Proactive Chat / Initiate Chat
Delight your Customers

Delight your Customers

Everything you need to offer a memorable customer service experience.
Connect with your customers instantly to boost engagement and build meaningful relationships. Chatstack is easy to use and provides you with the tools to offer fast and efficient support in a user friendly interface.
Increase your Sales

Increase your Sales

Generate more leads and increase your sales when you reach out to customers.
Chatstack is an essential messaging tool that offers proactive chat and allows you to help customers immediately and provide answers right away to close the sale and increase your conversion rate.
Boost your Business

Boost your Business

Skyrocket your business and exceed your customer's expectations.
Good customer experiences encourage customer loyalty. Chatstack allows you to collect valuable business intelligence from customer feedback and chat transcripts that allows you to better serve your customers.

Discover the features that will boost customer happiness

With over 14 years of experience in customer support software, we have developed Chatstack into a product with plenty of features to help you keep your customers happy and build new customers relationships.

Simple and quick installation on your own hosting account or server

Our PHP live chat software is a complete self hosted solution that you can install on your own Linux or Windows hosting account or web server. If your hosting account or server supports PHP and MySQL and meets the system requirements, simply upload the PHP files to your web host and include the HTML script on your web pages. By using self hosted live chat software you can avoid on-going monthly fees and keep all of your customer's data private and secure on your own server.
PHP MySQL JavaScript

Chat with your customers on the go with mobile apps for iPhone and Android

Keep in contact with your customers while you are out of the office with optional mobile apps for iPhone and Android. The mobile apps are available for purchase separately in the iPhone and Google Play app stores for $9.99 USD.
Live chat from your iPhone and Android device

Trusted worldwide to connect businesses with millions of customers


happy customers



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OpenCart is a free PHP and MySQL based shopping cart software application and online store management system. Install the OpenCart live chat software on your online store.

Get started with Chatstack now from only $189

Self-Hosted and No Monthly Fees

14 Day Money Back Guarantee