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About cashlog.org

Not a fintech startup with buzzwords — a tool I wished I had when my brokerage and my spreadsheet did not tell the same story.

What cashlog does for you

cashlog.org helps you understand your portfolio the way it feels in real life: with XIRR across all cash flows — buys, sells, dividends, coupons and FX. Bonds and foreign currency are built in, not “coming later”.

Everything runs locally in your browser. Your data stays with you. No subscription — a cashlog.org licence when you want to stay. Pricing and details on cashlog.org.

How cashlog came about

I come from a banking background — there you quickly see how professionally returns are discussed. Privately, my picture was often different: the brokerage shows +8 %, yet it still does not feel right because dividends, coupons or FX are missing.

As a self-employed person you manage a lot yourself — including your wealth. I maintained my portfolio in spreadsheets and broker views for years. At some point it was clear: either I accept rough approximations, or I build something that answers my questions.

Around me is a network of people with similar topics — long-term oriented, with ETFs, bonds, income, sometimes several currencies. The same question keeps coming up: “How much did I really earn?” Not the price alone, but what remains after all inflows and outflows.

That is what cashlog.org is for: calm, traceable, no social feed — so you base decisions on numbers you can trust.

What you can expect from us

  • Honest numbers: XIRR and bond logic are explained in the product — you can verify instead of blindly trusting.
  • Your data: No mandatory account, no portfolio in our cloud. You decide what lives where.
  • Clear terms: Imprint, Terms and Privacy are public — no hidden clauses.
  • We listen: No fake testimonials. If something is missing or unclear, write to us — we read every message.

Who is behind it

Christian Bahnmüller — founder, development and product, Austria. I use cashlog for my own portfolio and improve it where everyday use shows gaps.

Legal and contact: Imprint · built-in Contact in the app