About RunTK

RunTK is a collection of simple tools to help with your training, with a focus on endurance. Everything is free and runs in your browser. No accounts, no tracking, no data collection. Your data stays yours.

Most of these tools started because I needed something specific, couldn't find it, or didn't want to pay a subscription for something that should be simple. So I built it. If you find them useful too — great. That's the whole point of putting them here.

About me

I'm just a guy who runs and obsesses over the small details that make endurance training click.

I'm not a company. There's no team, no investors, no roadmap meetings. Just someone with a passion for endurance, health, and longevity who keeps building small tools to solve problems I run into during my own training.

What I care about

Training smarter, not just harder
Tools that do one thing well and stay out of the way
Keeping things simple and respecting your privacy
The long game — health and performance for decades, not just the next race

Privacy Policy

For details on how your data is handled, see the Privacy Policy.

Contact

Questions? email [email protected]

Support RunTK

These tools are free. But if something here saved you time or made your training a little better, you can buy me a coffee to keep the legs moving.

☕ Buy Me a Coffee or gel or endurance support

No pressure. Lace up and go run.