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ExpressLRS Configurator

  • Software
  • Drones and boats
  • Tool

A cross-platform desktop tool for building and configuring ExpressLRS radio control link firmware and flashing it onto hardware. It runs as an Electron app.

Made by ExpressLRS.

Source on GitHub: github.com/ExpressLRS/ExpressLRS-Configurator (opens in a new tab). Facts read at commit 6ef609e (opens in a new tab).

Licenses

Code
GPL-3.0-only (opens in a new tab)

Read by Robotheca from LICENSE (opens in a new tab) (GPL-3.0-only) at commit 6ef609e (opens in a new tab), on 16 Oct 2026.

Commercial use
Yes

Copyleft: Modified source must be published.

What it does

  • Builds and configures ExpressLRS firmware and flashes it onto supported hardware.
  • Ships as a standalone installer for 64-bit Windows, Linux and macOS.
  • Uses PlatformIO Core, which the app installs into its own virtual environment on first run.
  • Consists of a local API server doing the work and a UI layer, communicating over GraphQL.
  • Translated into several languages, with the interface language detected from the system or chosen in Settings.
  • Can simulate Wi-Fi devices on the local network when started with the MULTICAST_DNS_SIMULATOR_ENABLED environment variable.

Written by Robotheca from the project's README (opens in a new tab) at commit 6ef609e.

Getting started

Difficulty
Beginner
Hardware it needs, as the project states it
Windows 8 or later (minimum); 64-bit Windows, Linux or Mac; Linux users need PlatformIO udev rules installed; for development, node >= 24, git >= 2.25 and python >= 3.10.

Maintenance

Status
Active: a commit in the last 90 days
Newest commit
3 Oct 2026 on master
Latest release
ExpressLRS Configurator 1.8.3 (22 Jul 2026)

Checked on GitHub on 16 Oct 2026.

Links

Robots that can run it

No robot on Robotheca is linked to it yet. Links come from a robot's robot.yaml, from its dependency files read as text, or from Robotheca's editors.

Robotheca lists software as a reference: nothing is hosted or run here, and every fact links to where it was read.