Open Source
100% Local & Secure

Docer Download | !!link!!er

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

Docer Download | !!link!!er

: The Docer Downloader Firefox Add-on is the most accessible version for non-technical users.

These downloaders may take the form of:

Searching for a "Docer downloader" is a gamble. While the promise of free premium templates is tempting, the reality often involves broken links, low-quality files, and potential viruses.

sudo mv docer /usr/local/bin/

Unlike generic "document downloaders," this extension is hard-coded to handle the specific security layers of Docer sites. While tools like Document Downloader exist, they often fail when sites update their backend. The developer of Docer Downloader, seszele , frequently updates the script to ensure it remains functional against the latest site changes.

: The Docer Downloader Firefox Add-on is the most accessible version for non-technical users.

These downloaders may take the form of:

Searching for a "Docer downloader" is a gamble. While the promise of free premium templates is tempting, the reality often involves broken links, low-quality files, and potential viruses.

sudo mv docer /usr/local/bin/

Unlike generic "document downloaders," this extension is hard-coded to handle the specific security layers of Docer sites. While tools like Document Downloader exist, they often fail when sites update their backend. The developer of Docer Downloader, seszele , frequently updates the script to ensure it remains functional against the latest site changes.