Browser-based firmware flasher for the C3RB3RU5 pentesting firmware on ESP32-DIV hardware.
Flash directly from your browser — no drivers, no CLI, no setup.
| Board | Status |
|---|---|
| ESP32-DIV V2 (ESP32-D0WD-V3, 16MB) | Ready |
| ESP32-DIV S3 (ESP32-S3, 16MB, native USB) | Ready |
| ESP32-DIV V1 | Coming soon |
| CYD (Cheap Yellow Display) | Coming soon |
- Visit raddad87.github.io/C3RB3RU5
- Connect your ESP32-DIV via USB
- If the board doesn't auto-enter download mode, hold BOOT, tap RESET, then release BOOT (the S3 has native USB and usually needs no BOOT hold)
- Click Install and select the serial port
- Wait for the flash to complete (~30 seconds)
Requires a Chromium-based browser (Chrome, Edge, Brave) with Web Serial API support.
C3RB3RU5 is custom pentesting firmware for the ESP32-DIV platform. It runs a full suite of 2.4GHz WiFi, Bluetooth/BLE, RF/SubGHz, NFC, and detection modules across both the ESP32 (V2) and ESP32-S3 boards — built for testing your own equipment.
C3RB3RU5 didn't start from scratch — it stands on two projects, and this build takes the best of both and expands on them:
- CiferTech — created the ESP32-DIV hardware and the original ESP32-DIV firmware. The device and its base software are entirely CiferTech's work; C3RB3RU5 is a firmware built for that platform. (ESP32-DIV repo · MIT · cifertech.net)
- HaleHound-CYD by JesseCHale — elements and feature ideas were borrowed and adapted from its firmware.
- RadDad87 — C3RB3RU5: combined the strongest parts of both firmwares, then expanded them with additional modules, a full UI overhaul, and the C3RB3RU5 branding.
Web flasher powered by ESP Web Tools.
MIT. C3RB3RU5 firmware © 2024–2026 RadDad87, built on CiferTech's ESP32-DIV (MIT). For authorized security testing only.