A flight simulator for developers
To assess real-world skills, you need a real-world development environment. Set your candidates up for success with the same powerful tools they use every day to edit, install, run, and debug code.
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A state-of-the-art development environment
From advanced auto-complete, to dynamic real-time previews, to a fully integrated terminal, we’ve got everything developers need to do what they do best.
A Flight Simulator for Developers
Evaluate candidates in a hyper-realistic development environment that feels just like coding locally.
How is this possible? Every CodeSignal interview session is run in a persistent Linux environment where the candidates and interviewers have full reign.
Support for full-stack applications
Start a service, interact with a database, and run a live frontend preview. With a built-in filesystem, you can even import larger projects from your GitHub repository.
Advanced code editor features
Our IDE feels like native VSCode, with the functionality you expect right at your fingertips. Stay in the flow with fast autocomplete and other smart features like find references and jump-to-definition.
Terminal access to the development environment
With a powerful integrated terminal, you’re free to install tools and packages, run a debugger, load data, call APIs, and more within your dedicated Linux environment.
Features that make it easy to assess for any role
File-system & project support
Enables close simulation of real-world situations.
Collaborative editing
Conduct live interviews with one or multiple interviewers.
Jupyter Notebooks integration
Make data-focused assessments more interactive.
Tab Size, Font-size & auto-tabbing configurations
Allow candidates to make the environment their own.
A variety of themes
From Dark to Bright to Solarized, we have all the best themes.
Vim, Emacs & Sublime key bindings
Key bindings that make programming in our IDE even more effortless.
I had a smooth and a bug free experience during an online assessment which I was giving. The responsiveness and fluidness of the platform is way above when compared to other platforms. The code evaluation experience is flawless and allows you to concentrate on your tasks as the platform gives a hassle-free experience. Highly recommended.
CodeSignal has the best IDE experience of all other competitors I've used. 
Intuitive design! Also, there was very nice autocomplete that you don't see on most online editors. 
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I had a smooth and a bug free experience during an online assessment which I was giving. The responsiveness and fluidness of the platform is way above when compared to other platforms. The code evaluation experience is flawless and allows you to concentrate on your tasks as the platform gives a hassle-free experience. Highly recommended 
— Sanket S, Software Engineer
See the magic of our IDE for yourself.
Advanced code editor features
Our IDE feels like native VSCode, with the functionality you expect right at your fingertips. Stay in the flow with fast autocomplete and other smart features like find references and jump-to-definition.