KeyDecoder

Name: KeyDecoder
Rating: 3.21875 (124 reviews)
Author: FrenchKey

By: FrenchKey App

Decode your keys from a picture in seconds

Overview

Google Play Store

Downloads

46,115 ▲ 76

Data as of 2026-10-04

Rating:

3.22

(124)

Version:

1.1.0

Last updated: 2024-02-04

Ranking

#313,482 ▼ 2,002

Overall

Features & Capabilities

KeyDecoder is a powerful Chrome extension that transforms your smartphone or tablet into a precise mechanical key decoder. Simply place your key on an ISO-sized card, capture a photo, and mark key features within the app. Within a minute, KeyDecoder delivers accurate key cuts with a precision of 0.1mm or less, dependent on photo quality and lighting conditions.

This free and open-source tool is perfect for penetration testers conducting legal physical intrusion assessments and anyone needing to decode keys securely. Released under the Aladdin Free Public License, its source code is fully accessible on GitHub. Emphasizing security, users are advised to treat their keys with the same care as passwords to prevent unauthorized duplication.

User Growth & Download Statistics

App Privacy & Security

By:

Downloads:

Rating:

Version:

1.1.0 Last updated: 2024-02-04

Version code:

Creation date:

2020-12-20

Publisher country:

Permissions:

android.permission.READ_EXTERNAL_STORAGE High risk
android.permission.WRITE_EXTERNAL_STORAGE High risk
com.keydecoder.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Size:

38.65MB

Email:

fr*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-10-04

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:: FrenchKey
Google Play Store: https://play.google.com/store/apps/details?id=com.keydecoder
Email:: fr*****@gmail.com
Website:: https://intrusion.eu

User Reviews

Users find KeyDecoder simple and useful for decoding keys and taking notes, especially in locksport. However, multiple reviews mention difficulties with aligning the grid properly, inaccurate cropping, and problems with the import picture function. The app's measurement reference based on credit cards rather than direct key blanks causes confusion. Lack of project deletion also frustrates users. While not as accurate or fast as physical gauges, it serves as a free alternative and works well once users understand how to use it properly.

Pros

Simple and convenient to use after initial learning curve
Helps take notes and perform key decoding useful for lock sport and cutting keys
Provides a free alternative to other key decoding apps
Gives accurate readings once properly aligned
Helpful for keys that are uncommon or require detailed measurements

Cons

Difficult to align grid correctly leading to crop or measurement errors
Lack of ability to delete projects causes inconvenience
Importing pictures feature is buggy or non-functional
Measurement system based on credit card reference instead of key blank or precise units causes confusion
App can be cumbersome and less accurate compared to dedicated physical gauges