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Introducing the New DesignSpark Toolbox App

After months of hard work, we are delighted to unveil DesignSpark Toolbox, our new app for iOS and Android devices. The DesignSpark Toolbox app is available to download free-of-charge, and provides a single point of access to common electronic reference materials, calculation and conversion tools in an easy-to-use format for electronics design engineers, makers and students.

The app has been developed in conjunction with Marcus Roskosch, the creator of a range of highly successful apps for engineers, and replaces the RS Toolbox app.

The app is a must have for engineers, students and makers around the globe and is available in 17 different languages. There are over 25 engineering tools and calculators to access for free. 

Users will also be able to access many DesignSpark community features within the app, placing thousands of member-contributed articles and projects at their disposal, covering everything from Arduino and Raspberry Pi to IoT and Blockchain.

The ‘Make’ section provides the perfect place to keep track of projects on the go with sections to store website links, images, technical documents and much more. There is even access to the new DesignSpark Marketplace, where makers and start-ups can buy and sell their creations.

The app aims to support your designs, BOM, procurement and stock keeping. In addition to the common calculation tools and component comparison tables, it incorporates product search, barcode scanning, reference materials, 3D models and much more.

We have listened to feedback from members on our previous app and in particular your desire for an Android version, and improved functionality. We are delighted to be able to deliver both today.

We're also proud to commit to you that the DesignSpark Toolbox app, like our design software, will always be free-of-charge to support our community and will be regularly updated in the future to offer more and more functionality. So make sure you let us know your thoughts in the comments section below. 

Download Now

App Store (iOS): Download Now

Google Play (Android): DOWNLOAD NOW 

Microsoft Store (Windows): DOWNLOAD NOW


The app features an extensive list of tools, which are grouped as icons on the main screen, including engineering calculators, converters and lookup tables.

These include: 

  • Resistor Calculator
  • Capacitor Calculator
  • SMD Resistor Calculator
  • Inductor Calculator
  • Ohms Law Calculator
  • LED Calculator
  • Voltage Regulator Tool
  • Constant Current Tool
  • NE555 Tool
  • OpAmpTool
  • Number Systems Converter 
  • Units Converter
  • Packages Guide
  • PCB Width Calculator
  • Microstrip Mitre Tool
  • Delta Star Calculator
  • Raspberry Pi Guide
  • Filter Tool
  • NTC PTC Calculator
  • Comparison Tables (IP-ratings, cable colours, torque conversion etc.) 
  • DesignSpark Product Search
  • RS Product Search
  • RS Pro Product Search
  • 3D Model Viewer
  • Vishay inductor core loss calculator 

DesignSpark is an engineer and maker community from RS Components, we provide free CAD software, online resources and design support. Our flagship CAD software includes DesignSpark PCB, DesignSpark Mechanical and DesignSpark Electrical. Join our community at

9 Apr 2018, 8:00