B4R
5.7#20 in embedded development idesFree planFree planWindows
VisitB4R vs IAR Embedded Workbench
IAR Embedded Workbench
6.9#4 in embedded systems toolchainsFree planFree planExtensionLinuxWindows
VisitWhat both publish
| Fact | B4R | IAR Embedded Workbench |
|---|---|---|
| Documentation | The page links to learning resources, example projects, tutorials and a B4R forum. | IAR’s documentation portal covers most releases after June 30, 2025, while older product documentation is supplied in installed software. |
| Purpose | B4R is a development tool for building native programs for Arduino, ESP8266 and ESP32. | IAR Embedded Workbench is an embedded development toolchain with an optimized compiler, debugger, and analysis tools. |
B4R plans
- B4RFree
IAR Embedded Workbench plans
- IAR Embedded Workbench evaluationFree
- IAR Platform subscriptionPriced on request
Pick B4R if…
B4R suits developers building native programs for Arduino-compatible boards, ESP8266, or ESP32 on Windows. It may also suit commercial users seeking a free tool with accessible source and compiled objects.
Pick IAR Embedded Workbench if…
It suits embedded development and embedded security teams working with supported architectures on Linux or Windows. Teams evaluating the tool should note the trial's non-commercial restriction and excluded features.