Trezor Firmware

April 16, 2026 ยท View on GitHub

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Repository Structure

  • ci: Ancillary files, data, and scripts for the CI pipeline
  • common/defs: JSON coin definitions and support tables
  • common/protob: Common protobuf definitions for the Trezor protocol
  • common/tools: Tools for managing coin definitions and related data
  • core: Trezor Core, a firmware implementation for Trezor T, Trezor Safe 3, Trezor Safe 5, and Trezor Safe 7
  • crypto: Stand-alone cryptography library used by both Trezor Core and the Trezor One firmware
  • docs: Assorted documentation
  • legacy: Trezor One firmware implementation
  • python: Python client library and the trezorctl command
  • storage: NORCOW storage implementation used by both Trezor Core and the Trezor One firmware
  • tests: Firmware unit test suite
  • tools: Miscellaneous build and helper scripts
  • vendor: Submodules for external dependencies

Contribute

See CONTRIBUTING.md.

Using Conventional Commits is strongly recommended and might be enforced in the future.

Also, please have a look at the docs, either in the docs folder or at docs.trezor.io before contributing. The misc chapter should be read in particular, as it contains useful assorted knowledge.

Security Vulnerability Disclosure

Please do NOT create publicly viewable issues for suspected security vulnerabilities. See the Security tab for reporting instructions.

Documentation

See the docs folder or visit docs.trezor.io.