Open Source
100% Local & Secure

Refog Employee Monitor ((free)) ★

The world’s fastest GTFS validator. Catch errors instantly before they reach Google Maps. Runs entirely on your device-your data never leaves your computer.

0x Faster than Java
0 Validation Rules
0kb Data Uploaded
Browser Validator (WASM)
Local

Drop GTFS.zip here

or click to browse

Why Switch to GTFS Guru?

Inspired by the official standards, rebuilt for the modern era.

Feature
Canonical Java Validator
GTFS Guru (Rust)
Speed (Small Feed)
~1.5s
~0.01s (100x Faster)
Speed (Large Feed)
40s
20s (2-5x Faster)
Memory Usage
~1.5GB RAM
~150MB RAM
Privacy
Local code / Cloud validator
Local App / Working in your browser
Python Support
Wrapper only
Native (`pip install`)

Get the Desktop App

The easiest way to validate feeds on your machine.

macOS

Universal (Intel & Apple Silicon)

Download DMG

Windows

x64 Installer

Download EXE

Linux

Debian / AppImage

Download DEB Download AppImage

Refog Employee Monitor ((free)) ★

Administrators can deploy tailored software configurations depending on the unique topology of their enterprise environment:

Tracks text exchanges across prominent chat services, emails, and instant messaging clients to actively defend corporate intellectual property.

offers a robust solution for businesses looking to maintain high standards of accountability and data protection. Why Monitoring Matters for Modern Teams

If you are writing a formal academic paper, you should consider citing sources on the following topics to bolster your arguments regarding Refog:

Detect unauthorized file transfers or suspicious communications before they become costly breaches.

Administrators can deploy tailored software configurations depending on the unique topology of their enterprise environment:

Tracks text exchanges across prominent chat services, emails, and instant messaging clients to actively defend corporate intellectual property.

offers a robust solution for businesses looking to maintain high standards of accountability and data protection. Why Monitoring Matters for Modern Teams

If you are writing a formal academic paper, you should consider citing sources on the following topics to bolster your arguments regarding Refog:

Detect unauthorized file transfers or suspicious communications before they become costly breaches.