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The Best All-in-one Car Key Programming and Diagnostic Tool 2022 Review

Looking for the best all-in-one car key programmer and diagnostic tool? There are many types of car key programmers with different specifications and functions. In addition to choosing a key programmer based on what you'll be using it for, most people also consider the budget. You work for your money and you know what you're paying for is right. We have prepared a comprehensive list of five unique key programmers for you to choose from.

1. Autel IM608 Pro

IM608 Pro

Autel IM608 Pro is the best one-button programming and diagnostic scanner tool with powerful IMMO capabilities, OE level full system diagnostics, and full-service capabilities. Features include an Android operating system for fast startup and multitasking, a 10.1-inch LED touchscreen with a resolution of 1920x1200 for a crisp display. It has a user-friendly interface and comes with a built-in 8-megapixel rear camera with autofocus and flashlight, Wi-Fi connectivity for accessing the internet, and an extra-long 15,000 mAh battery.

Advanced XP400 Pro Key Programming

This sophisticated key programming and the diagnostic tool come with an XP400 Pro key programmer and a MaxiFlash JVCI for ECU programming.

XP400 is designed to accurately read and write transponder data (including Mercedes-Benz infrared smart key), ECU/MCU/EEPROM data (such as 9S12 encryption chip), IC card, and remote frequency detection capabilities.

These tools allow you to program new keys and also handle chip encryption. Additionally, with the Autel IM608 Pro, key programming and vehicle diagnostics can be performed on multiple vehicles simultaneously.

All System Diagnostics

The Autel IM608 Pro provides powerful OE level diagnostics for over 80 US, Asian and European makes and models. With just one tap on your screen, the Auto Scan tool can perform a comprehensive system scan of all ECUs in your vehicle. It has functions such as reading and deleting error codes, viewing freeze frame data and retrieving ECU information. This high-quality diagnostic scanner takes an easy-to-use route to search for and troubleshoot your vehicle's interior. If you're diagnosing a new model, you can easily update your device when new software is available for free. This upgrade offer is only valid for one year.

Maintenance Services

Autel IM608 Pro can perform more than 20 maintenance services such as EPB, DPF, SAS, Oil Reset, BMS, and TPMS Sensor ID Relearning. Autel IM608 Pro includes Smart Mode and Expert Mode to guide technicians while performing IMMO. Smart Mode provides guided automatic key learning. This option is easy for beginners as they can step through a series of functions. And the expert mode provides advanced key learning. This option allows experts to quickly access the desired functionality.

IM608 Advantages and Disadvantages


  • Easy to use.
  • Free software updates.
  • It comes with a warranty.
  • Good memory capacity.
  • The diagnostic tool is fast thanks to its sensitive touchscreen.
  • Excellent scan sensitivity.


  • It is not compatible with pre-1996 vehicles.
  • quite expensive.
  • It is difficult to replace the battery.

2. Launch Pad VII plus

Launch X-431 PAD VII

Launch X-431 PAD VII is a diagnostic tool with an X-PROG3 immobilizer and key programmer, it also supports ADAS calibration, 32 service functions, TPMS, and online programming. X-431 PAD VII integrates Smartlink C, which can support SmartLink remote diagnosis and 8 expansion modules such as a video endoscope, oscilloscope, sensor box, TPMS tool, key immobilizer, and battery tester. Has system-wide vehicle coverage for the US, Asian and European markets, over 110 brands, and is constantly updated. An intelligent diagnostic tool that automatically identifies VINs and quickly accesses the system

The most powerful hardware

Launch Pad Vii runs on the Android 9.0 operating system. The device is equipped with a 13.3 touchscreen display with a resolution of 1920x1200. The Launchpad vii is powered by a 2.0GHz octa-core processor. It has 8GB RAM and 256GB storage for faster operation. The device also has rear 13MP and front 8MP cameras. It has 2.4GHz and 5GHz dual-band communication to ensure a fast and stable connection.

X-PROG 3 Anti-theft and Key Programmer

Launch X-PROG3 is a dynamic anti-theft key programmer with anti-theft type identification, read and write keys, remote control matching, key chip read and write matching, anti-theft password reading, and anti-theft component replacement, etc. Function.

X-PROG 3 can read and write EEPROM, onboard MCU and BMW CAS4+/FEM chip, Mercedes-Benz infrared key, generate a special key and read BMW engine INS code. It is suitable for automatic transmission, instrument systems, CAS, body systems, lock systems, etc. It is compatible with X-431 series diagnostic scanners.

Launch X-431 PAD VII Advantages and Disadvantages


  • Free Online Updates
  • Global version without IP restrictions
  • Wide range of models
  • Powerful diagnostic function
  • Accurate test data
  • Supports multiple languages


  • Expensive

3. Xtool x100 pad3 with kc501

Xtool x100 pad3

Xtool x100 pad3 is an all-in-one key programming and advanced diagnostic tool, equipped with a Kc501 key programmer, with more than 30 functions, two-way control, wide vehicle coverage, OE all system diagnostics, and IMMO keys programming.

The Xtool x100 pad 3 features an 8-inch LED capacitive touchscreen with a resolution of 1024x768. It runs on Android OS and has a powerful Cortex 1.8Ghz 4-core processor. It has a solid 64GB of onboard memory inside for better performance and a 10,000mAh battery. The device features a built-in 8-megapixel rear camera with autofocus and flashlight and dual Wi-Fi for faster internet access.

Mercedes' key programmer

Xtool Kc501 performs infrared key programming for Mercedes-Benz, key matching for Mercedes-Benz FEM3, and reading remote control frequency, chip type, and key ID. Through the app, it supports key-press programming and EEPROM programming via PC.

KC501 supports the functions of reading, writing, and erasing various chips such as registers, single-chip microcomputers, and anti-theft, and supports more than 120 EEPROMs, 7 MCUs, and 11 ECUs. It also supports automatic key recognition, partial key reading and writing, key generation, key information reading, key lock checking, key unlocking, and other functions.

Full System Diagnostics

The device provides robust OE-grade diagnostics for more than 80 US, Asian and European makes and models. Diagnostic scans can access and clear code data, freeze frame data, 5 digit codes, read and clear codes, O2 sensor test results, discontinuous monitoring systems, record vehicle information, pending codes, and bidirectional components. With the bidirectional control feature, you can request information from the ECU or command specific functions to easily identify the source of a car fault and troubleshoot it without using vehicle controls.

Xtool x100 pad3 Advantages and Disadvantages


  • 2 years of free software updates
  • 2-year warranty
  • Wide vehicle coverage
  • Supports multiple languages


  • Not compatible with all cars

4. Obdstar x300dp plus

Obdstar x300dp plus

Obdstar x300dp plus is a diagnostic tool with anti-theft, special functions (EEPROM+key update), all system diagnostics, and ECU functions.

It is based on the Exynos4418 dual-core ARM Cortex A9 1.4GHz processor. It comes with an 8.0-inch LCD and 1280x800. The device comes with a 5MB rear-view camera, 3700mA battery, 32G Micro SD (TF) card, 1GB memory capacity, and 32GB storage capacity. It is specially designed for the Android platform, with a clear and user-friendly interface.

4-System diagnosis

Full-function diagnosis of the electronic control system of mainstream models in Asia, Europe, the United States, and China. Diagnostic functions include reading DTCS, clearing DTCS, reading data stream, special functions, etc.

Key programming for cars around the world

Its special functions include ABS, EEPROM adapter, battery matching, CVT learning, EPB, Gear learning, Immobilizer, TPMS (low tire) reset, cluster calibration, ECU programming, and steering angle reset.

Obdstar x300dp Pros and Cons


  • easy to operate
  • All vehicle system diagnostics
  • ECU can be cloned directly without risk


  • Not compatible with all vehicles

5. Xhorse Key Tool Plus

Xhorse Key Tool Plus

Xhorse Key Tool Plus is equipped with IMMO ECU programmer full version, providing a one-stop solution for locksmiths, with no laptop or mobile phone required. The Xhorse key tool supports IMMO programming of luxury cars like BMW, Mercedes, Audi, and Volkswagen. Can also be used to control the Xhorse key cutter

Choose key tool runs on 8 core 2GHz processor and Android 9.0. Equipped with 4G+128G RAM+ROM, 10.1-inch high-definition anti-glare anti-fingerprint screen, top operating experience, 13.0MP rear high-definition camera, 10000mAh ultra-long battery life, 30W super fast charge. IMMO programming Xhorse keys for

Common car brands can be used for Mercedes-Benz,

BMW, Audi, Volkswagen, and other luxury car brands and Toyota, Honda, Mazda, Ford, and other common car brands for anti-theft programming, supporting more than 20,000 models around the world.

It also provides the basic functions of Key Tool such as identify transponder, remote update, transponder clone, generate transponder, IC/ID clone, remote clone, generate remote, frequency detection, and remote cloud identification.

Controlling Xhorse Key Cutter The

Choose key tool can be used to control key cutters (CONDOR Mini Plus, DOLPHIN XP-005, XP-005L, and PANDA), perfect as an operating screen. By using the Xhorse key tool, you don't need a smartphone.

Many other program functions are supported.

The prog functions include EEPROM and FLASH, IMMO, Instrument, CAN read ECU, data editing, airbag and ECU, etc. finite element.

It also supports Land Rover RFA module reading and immobilizer programming, and Porsche BCM programming. It is capable of reading AUDI, BMW, and Volkswagen ECUs with CAN. It supports instrument programming for Honda, Kia, and Hyundai. The device has EEPROM read and writes capabilities. It supports the reading and writing of most types of transponders on the market. Such as ATMEL, Mitsubishi, Winbond, Catalyst, ST, XICOR, Microchip, SEIKO, Xhorse, MXIC, and Toshiba.

Advantages and Disadvantages of Xhorse


  • Supports multiple languages
  • Free lifetime online updates
  • 1-year warranty
  • easy to use


  • All missing critical functions require an internet connection


We have listed the best all-in-one key programming and diagnostic tools above. None of these tools can do everything and be compatible with every vehicle, instead, each tool has specific features and functions. They all have their advantages and disadvantages. Some are better suited for specific purposes than others, and vice versa. Although some offer more features than their counterparts. Choosing the best tool for you will depend on what you plan to use it for and how much you're willing to pay.

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