JavaScript & Web Developers

We are a full-stack Javascript agency based in Toronto
& Montreal. Our team of JavaScript programmers are highly skilled and ready to take on your project.

How can your business leverage JavaScript?

When it comes to web development, JavaScript has been a promising programming language. Alongside HTML and CSS, JavaScript is one of the three core technologies of World Wide Web content production. The majority of websites employ it, and all modern web browsers support it without the need for plug-ins by means of a built-in JavaScript engine. Additionally, thanks to Node.js, we’re able to bring the speed and performance of JavaScript to the back-end.

Our expertise with JavaScript

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Front-End Development

We believe careful consideration of every detail is vital and really important for the user experience. Our experts are highly skilled in enriching the user experience through animations and feedback to user input.

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Back-End Development

Developing custom projects from single-page applications to high-traffic e-commerce platform is our area of ​​expertise. Core services: SOLID Development, RESTFul API, Scalable Architecture, Third-party Integrations.

Our Front End Development Stack

react web app technology


– Various dynamic effects, such as: drop down menus, slideshows, image and menu rollovers, news scrollers, embedded audio and video, toggle buttons, text collapsing and expanding widgets
– Stunning rollover effects, animations, carousels, datagrid behaviours, flash charts, bookmark integrations, paginations, sliders, chat applications and real-time tracking applications
– Validation of data inputted by users on website forms
calendars and interactive event notification widgets

Our Back End Development Competence

node js web app development

Our team love using Node.js for the back end of our projects. Not only it deals with APIs (or real-time web programming) but you it has a rich set of areas driving open source modules. Node.js apps produce a high amount of traffic and are highly scalable.

Let’s chat about your project!


Guaraná Technologies
250 University Ave Suite 200
Toronto, ON M5H 3E5

+1 (647) 559-3001


Guarana Technologies
4446 St Laurent Blvd #1000
Montreal, QC H2W 1Z5

+1 (514) 613-6050

Top App Developers in Canada

Guarana was recently named a Top Application Development Agency in Canada for 2018 by and CrowdReviews.

Guarana Technologies develops best-of-class mobile apps for smartphones, tablets and wearable devices. We develop your app ideas, make them smart and sexy, code them and launch them. Native iOS and Android app development.


4446 Saint Laurent, Suite 1000
Montreal, QC, H2W 1Z5, Canada


250 University Ave, Suite 200
Toronto, ON, M5H 3E5, Canada

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