I'm Jan Klosowski (aka klos). I build things and write about stuff.

DCA bot for crypto

Deltabadger is a dollar-cost averaging bot for crypto exchanges that as a SaaS helped thousands of users invest over $72M into digital assets. Now, since MiCA officially killed the business, I'm releasing the source code and the bot will be free to use.

DCA calculator for stocks, crypto, and whole portfolios

DCA Calculator is the only dollar-cost averaging calculator for stocks, crypto, and whole portfolios. It also allows you to test rebalanced DCA and compare results against other assets.

ETF comparison tool for stocks, crypto, and whole portfolios

ETF Savant is an ETF comparison tool where I collect personal research on ETFs and Mutual Funds on top of data collected by LLMs. The unique features are backtesting of DCA and detailed simulation of expense ratio impact.

Chart generator for stocks, crypto, and whole portfolios

Anybody who follows me on X or reads my Substack knows that I love charts. A few times someone asked me how I generate them. For a long time, I was manually crafting them in Figma, but now I use this Chart Generator.

Some other posts: