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C++Builder 10.4.2

Native Apps that Perform.
Build Windows C++ and iOS Apps 10x Faster with Less Code



Powerful, Full-Featured Windows Development


Design beautiful, intuitive user interfaces with award-winning and cross-platform frameworks on Windows and iOS. Provide a platform-native experience to your users while designing the interfaces only once, cutting development time by half or more.



Alvaro Reyes 6avv9oehxfo Unsplash



Modern C++17

Featuring a Clang-enhanced compiler, Dinkumware STL, and easy access to Boost, plus common libraries like SDL2, and many more

Single Code Base

Create apps for all major platforms with less coding effort. Write once, compile everywhere

Windows 10 Applications

Modernize aging apps to support Windows 10 with up-to-date responsive controls and Windows Store support

Internet of Things (IoT)

Easily connect your apps to gadgets, devices, sensors, enterprise data, and cloud services

Continuous Integration

Integrate with continuous build configurations quickly with MSBuild, CMake, and Ninja project support either as a lone developer or as part of a team

Accessible Data

Connect natively to over 20 databases like Oracle, SQL Server, MySQL and more with FireDAC’s high speed direct access

iOS Applications

Develop applications for iOS quickly and easily with C++Builder’s tools

Cloud Aware

C++Builder has an HTTP and a REST client library, available on all platforms, to invoke REST services and even specific AWS and Azure components

Rapid Development

Award-winning visual design tools help you deliver projects 5x faster than competing solutions

Responsive UI

Create a single responsive platform-aware UI once and deploy on Windows and iOS

Version Control Integration

Track and manage changes using version control systems including Subversion, Git, and Mercurial repositories

Extend the IDE

Create a plugin that adds new tool windows, draws in the code editor, provides code completion, adds new syntax highlighting, hooks into high-level and low-level events, tracks processes and threads while debugging, and more.





Designed to Fuel Your Imagination


Design Beautiful Desktop and Mobile App UIs with C++Builder

RAD Studio’s C++ version comes with the award-winning VCL framework for high-performance native Windows apps and the powerful FireMonkey (FMX) framework for cross-platform UIs. Visual development for C++ has never been easier and faster – best of all, your designs and code will always be in sync!

  • Rapidly design your Windows application with VCL to ensure unmatched native performance
  • Use the visual design menu to easily drag and drop visual and non-visual components from the palette
  • Extend your visual UIs with components from multiple certified partners
  • Use FMX to create cross-platform apps using the same code base
  • Connect user interface elements to data sources using the LiveBindings Designer
  • Validate designs in real time using Live On-Device Preview to broadcast the active form to multiple devices simultaneously
  • Build fully responsive designs with resolution-aware components for desktop, tablets, and smartphones
  • Deploy platform-specific native controls for an improved user experience


Design Beautiful Desktop and Mobile App UIs with C++Builder

Code Faster and Smarter with C++Builder

Smart developers and Agile software teams write better code faster using modern OOP practices and C++Builder’s robust frameworks and feature-rich IDE

  • Quicken lengthy compiles with highly optimized compilers for every platform
  • Use Code Insight™ for code completion via a modern Language Server Protocol based on your code while libraries help you code quickly and accurately
  • Get native, high-speed direct access to InterBase, SQLite, MySQL, SQL Server, Oracle, PostgreSQL, DB2, SQL Anywhere, Advantage DB, Firebird, Access, Informix, MongoDB, and more
  • Get hints and tips from inline documentation as you code
  • Utilize popular libraries such as Boost, Eigen, and ZeroMQ plus leverage a broad range of community tools and libraries
  • Integrate with version control systems including Git, Subversion and Mercurial

Modern Developer Centric IDE

Fast And Accurate Debugging

Fix bugs faster with integrated cross-platform native debugging. Use the C++Builder IDE to debug applications running remotely on Windows and iOS!

  • Save time with the integrated toolchain bringing the designer, compiler, and debugger together into a single development environment
  • Add conditional breakpoints to quickly pause program execution at a specified location or when a particular condition occurs
  • Explore the entire call stack to trace the route the executing code took to reach its location
  • Inspect the current value of variables while your program pauses during debugging
  • Debug on any device! Deploy your app to Windows and iOS devices and debug as though it was running locally. Use breakpoints, stack exploration, tool tips and expression evaluation on local and remote machines with live debugging across all deployment platforms.
Conditional Breakpoints

Compile and Deploy High-Performance Apps with C++Builder

Reach your users by creating apps for their preferred device. Create both desktop and mobile apps from one codebase with C++Builder and deploy to Windows and iOS.



  • Go from Ad Hoc to App Store fast. Rapidly produce application bundles that can be deployed to Windows Store (using Desktop bridge), Apple App Store and Google Play Store.
  • Define files to deploy by platform and build configuration. Identify within each project the files to deploy based on the target platform (Windows, macOS, iOS) and build configurations for Debug or Release.
  • Deploy files directly from the C++Builder IDE. Quickly deploy files to remote machines using Platform Assistant Server (PA Server). PA Server combines the files defined for deployment and packages them into a single application instance.
Adhoc to AppStore

Improve the Quality of Your Code with C++Builder

Faster development cycles don’t have to mean sacrificing quality! C++Builder comes with many features that employ coding best practices, reduce duplication efforts, and help you become a rockstar coder!



  • Build better code by leveraging well-tested and highly optimized native Windows and iOS libraries
  • Turn documentation into immediate in-line help for you and your team
  • Build unit tests for all of your code using the integrated DUnit frameworks
  • Dive into your project without interrupting the application flow by adding live log-in with CodeSite Logging
Code Quality

Collaborate Better with C++Builder

C++Builder’s collaboration and version control features will help you create better products faster, both as an independent developer or as part of a team. Code Collaboration drives deeper code understanding, better testing, and better products.

  • Track and manage changes quickly using version control systems including Subversion, Git and Mercurial repositories
  • Easily navigate changes and history using the history tab in the code viewer with the built-in difference viewer
  • Integrate with continuous build configurations quickly with MSBuild, CMake, and Ninja project support either as a lone developer or as part of a team
  • Easily access Cloud-Based RESTful Web Services using built-in REST and JSON/BSON support
  • Connect to Amazon and Azure services, including application services, database services and storage services with the C++Builder Amazon API and Azure API
Deep Source Code Repository Integration

Extend the C++Builder IDE

C++Builder comes with hundreds of components for every task, from creating user interfaces to database connectivity, enabling easy and fast builds for connected business applications on desktop and mobile platforms. In addition to the included VCL and FireMonkey components, a broad range of tools and components are available from the Delphi and C++Builder communities.

  • Use GetIt Package Manager to easily download and integrate new components to improve the functionality of your applications
  • Get easy access to popular libraries such as Boost, Eigen, ZeroMQ, SDL2, SOCI, libSIMDpp, and Nematode
  • Easily utilize the broad array of third-party components and controls for Delphi directly in C++Builder
  • Extend the IDE with Tools and Components from Embarcadero’s Technology Partners
  • Employ powerful integrated tools and components like Beyond Compare, FastReport, TeeChart, InterBase, IP*Works, and CodeSight!
  • Extend the IDE even further with addons and plugins from dozens of third parties and customize the IDE to work your way
GetIt Package Manager

Download RAD Studio Feature Matrix




C++Builder 10.4.2 is here! Discover The New Release



Trusted by Over Three Million Developers Worldwide

The Fastest Way to Build Responsive Native Applications on Multiple Platforms

Embarcadero’s Delphi, C++Builder and RAD Studio IDEs enable more than three million independent developers and enterprise development teams worldwide to deploy high-performance responsive native applications on Windows, Android, iOS, macOS and Linux.

Using a single easy-to-write, easy-to-update codebase, IDE tools quickly compile native code for multiple platforms while enabling unprecedented productivity with powerful code completion, and enhanced parallel processing on modern multi-core CPUs.

RAD Studio 10.4.2

Learn More on the Embarcadero Blog

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15 June 2021

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14 June 2021

How Easy Is It To Add A REST API To Your Own Apps?

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13 June 2021

Whitepaper: RAD Studio – Should I Choose Enterprise?

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Whitepaper: Enterprise Data on Mobile: Top 5 Mistakes And How to Avoid Them

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13 June 2021

5 EASY Ways To Integrate Image Processing In Your Apps

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Powerful Dashboards with REST API & Delphi MVC Framework

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Implementing A Blazing Fast IoT Network With MQTT

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12 June 2021

Learn Rigid-Body Heat Transfer Equations With C++ Builder

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11 June 2021

The Future Of Desktop Apps Is Native Code

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