Toptal Blog

Hidden in Excel and Power BI is a powerful data analysis pack named Get & Transform (previously known as Power Query). It is an ETL pack for cleaning and sorting raw data from a range of input sources, such as CSV and text files. This tutorial demonstrates how to–quite literally– get and transform data in Excel, in ways that can help the data analyst save time and uncover more insight.

Let’s face it, robots are cool. In this post, Toptal Engineer Nick McCrea provides a step-by-step, easy-to-follow tutorial (with code samples) that walks you through the process of building a basic autonomous mobile robot.

There are many UX design tools on the market, but their capabilities vary. This review examines the effectiveness of Sketch, Axure, and Figma with a task-based comparison.

While often overlooked, the data warehouse enables companies to reveal valuable insights concealed within their vast data troves. In this article, domain expert Josip Saban shares foundational principles and applications that are essential knowledge for all modern managers.

Possibly with the exception of color, the typeface styles used in a design have a greater impact on the way a user perceives that design than virtually any other individual design element.

The humble ERC20 token specification has become the de facto standard for Ethereum tokens. If you come across an Ethereum smart contract, chances are it’s ERC20-compliant.

In this guide, Toptal Freelance Ethereum Developer Gilad Haimov demonstrates how you can create and deploy your own ERC20 token in under an hour.

The existence of RESTful APIs is a popular myth in web development—but it’s a myth we can work with. The right tools can help keep documentation consistent and streamline automated testing. In this article, Toptal Freelance JavaScript Developer Alexander Zinchuk explores several time-saving approaches to developing REST APIs, with examples in Node.js and Ruby on Rails.

Conversational user interfaces are a new frontier that requires thoughtful consideration. The design process should include defining the purpose of the chatbot, and other design considerations to create a successful user experience.

Relatively unknown until recently, representation and warranty insurance is an interesting—and often extremely effective—tool for helping M&A deals cross the finishing line. By shifting the financial risk for breaches of representation and warranties to an insurance firm, these arrangements can enable sellers to receive all the purchase price proceeds at closing as opposed to being exposed to liquidity risk post deal close.