Why ChainLog
I'm Guillaume, cyclist and developer. Ultras, audax rides, multi-day crossings. What I love most is heading out on the bike with no fixed plan. I was tired of replacing parts blindly, too early out of anxiety or too late when it was already done for. So I built the tool I was looking for.
What makes ChainLog different
No ads, ever
ChainLog will never show ads. Your data serves you, not an advertiser.
Free, no catch
Everything you need to maintain and resell your bike is accessible to all. If I offer a paid option someday, it'll be to support the project, not to gate what already works.
A solo project
One person behind the code, design, and support. Your feedback lands directly, decisions move fast.
Your data is yours
Full export anytime, permanent deletion in one click. No resale, no sharing.
I built ChainLog for myself first. As long as I ride, I maintain it. And you keep your data: exportable anytime, even if one day I pull the plug.