Tesla Dashcam Decryptor

Batch-decrypt Tesla 2026.20+ encrypted dashcam .mp4 files locally.

Tesla's 2026.20 update encrypts all dashcam and Sentry Mode recordings on USB. This tool lets you decrypt an entire drive's worth of clips at once — no need to load files one-by-one in a browser.

How it works

Reverse-engineered from dashcam.tesla.com:

• Each encrypted .mp4 has a unique UUID embedded in its 20-byte header
• The tool posts those UUIDs to Tesla's API to retrieve per-file AES-128-CBC keys
• Files are decrypted in 4096-byte chunks (each chunk has its own 16-byte IV prepended)
• Your footage never leaves your machine — only the UUID list touches Tesla's servers

Requirements

• Python 3.10+
• A Tesla account with 2026.20+ firmware
• A Bearer token from dashcam.tesla.com (instructions below)

Setup

python3 -m venv .venv
source .venv/bin/activate   # Windows: .venv\Scripts\activate
pip install -r requirements.txt

Getting your token

1. Open dashcam.tesla.com and log in
2. Open DevTools → Network tab
3. Drop any encrypted clip into the page
4. Click any /api/1/ request → Headers → copy the value after Authorization: Bearer

Usage

source .venv/bin/activate

python tesla_dashcam_decrypt.py \
  /Volumes/TESLA/TeslaCam \
  ~/Desktop/TeslaCam_Decrypted \
  --token "YOUR_BEARER_TOKEN"

Options:

--token         Bearer token from dashcam.tesla.com (required)
--batch-size    Files per API call, default 20
--skip-existing Skip files already in output folder (default: on)
--dry-run       Fetch keys but don't write files

Running tests

pip install -r requirements-dev.txt
pytest tests/ -v -m "not integration"

For integration tests with real clips, copy .env.example to .env, add your token, put encrypted clips in EncryptedClips/, then:

pytest tests/ -v -m integration

Security notes

• Your token expires periodically — grab a fresh one each session
• .env, EncryptedClips/, and DecryptedClips/ are all gitignored
• Never commit real clips or tokens

License

MIT