EFILive stores tunes in an encrypted, compressed .ctz container. Drop one below to decode it to a flat .bin — the tool handles both locked and unlocked files, tries both key modes automatically, and rebuilds the calibration byte-for-byte. Everything runs in your browser.
It's EFILive's tune container — an encrypted, custom-compressed image of the ECU calibration. This tool reverses that to a raw .bin.
Yes. The converter decodes both unlocked and locked CTZ files, picking whichever key mode decompresses cleanly.
No. Decoding runs entirely in your browser — the file never leaves your device.
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