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Colibri Wallet

Colibri is an open-source DIY cryptocurrency hardware-wallet project built around off-the-shelf ESP32 development boards and Arduino IDE firmware.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Colibri Wallet — OpenViST project profile in Wallets.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Colibri to explore or contribute to an ESP32-based hardware-wallet build; its pre-alpha status and project warning make it unsuitable for real-key custody at this stage.

Who it is for

  • Makers who want to assemble a hardware wallet from ESP32 development boards.
  • Developers or contributors interested in open-source wallet firmware and hardware interfaces.

Documented uses

  • Build and flash wallet firmware using Arduino IDE.
  • Store and switch between encrypted mnemonic phrases on an ESP32 device.
  • Sign Ethereum messages, typed data and transactions using the device.
Before you choose

Requirements & limits

  • Arduino IDE is the documented build tool, with ESP32 development boards as the hardware foundation.
  • The pre-alpha preview lists BLE JSON-RPC communication, encrypted mnemonic storage and Ethereum signing.
  • The README says third-party wallet use and setup or unlocking through the companion web app are not yet available.
  • The project states that it has not been peer-reviewed or audited and advises against using real keys.
  • The software is licensed under AGPL-3.0.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Review the documented ESP32 wallet build requirements

Find the hardware, firmware-build, and wallet-use instructions before starting a Colibri build.

Before you start

  • Access to the Colibri GitHub repository and its firmware README.
  • An ESP32 development board; the project README reports firmware testing with ESP32-C3 and ESP32-S3.

Steps

  1. Open the repository README.

  2. Follow its link to the README in the firmware folder.

  3. Consult that firmware README for the required hardware and the documented firmware build, flashing, setup, and wallet-use instructions.

Expected outcome

You reach the project’s instructions for hardware selection, firmware build and flashing, and wallet setup and use.

Guide limitations

  • The available project README does not include the actual firmware-folder instructions, so it does not support a step-by-step build or flashing recipe here.
  • The project is labeled pre-alpha and says it has not been peer-reviewed or security-audited; it advises against using real keys.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
8 October 2026
Original website title
xtools-at/colibri · Official homepage title · retained in its source language
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