Become a sponsor to Tacettin TEZER
Hi, I'm Tacettin 👋
I build open-source tools for public transport data. Right now, I’m actively working on two main projects:
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GTFS City
An open-source platform that makes GTFS data easier to explore through interactive maps, simulation, and analysis tools. -
GTFS Validator
An open-source validation and analysis tool that helps detect quality, compliance, and logic issues in GTFS datasets.
Why I’m building these:
Public transport data should be more accessible, understandable, and verifiable for everyone. City planners, researchers, developers, and transit enthusiasts should be able to use strong tools without high costs.
Your support helps me:
Keep these projects free and ad-free
Build new features
Maintain and improve performance
Cover hosting and development costs
Every contribution, big or small, helps keep these projects alive. Thank you! 🚌
Featured work
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ttezer/gtfs-city
GTFS viewer and transit analysis tool with an Electron desktop app and a free web demo / Electron masaüstü uygulaması ve ücretsiz web demosu olan bir GTFS görüntüleme ve toplu taşıma analiz aracı
JavaScript 9 -
ttezer/gtfs-analyzer
TR: Tarayıcıda çalışan açık kaynak GTFS doğrulama ve analiz aracı. Veri sunucuya gitmez. / EN: Open-source GTFS validation and analysis tool that runs in the browser. Data never leaves your device.
Rust