Your financial history,
exactly as it happened.

ChronoLedger turns any financial scenario into a tamper-proof audit trail you can trust, share, and reproduce — deterministically.

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Immutable Ledger

Every event is stored with a cryptographic hash. Any tampering is immediately detectable — event by event.

Reproducible Valuation

The same scenario always produces the same result, regardless of when it is replayed. No hidden dependencies on live market data.

Audit-Ready Export

Export a hash-chained CSV with every event, price, and portfolio value — ready for your accountant or auditor.

How it works

Enter your transactions

Buys, sells, dividends, fees, transfers — enter events in any asset or currency.

Price your assets

Add mark-to-market prices manually or auto-fetch historical closing prices via Yahoo Finance.

Export & verify

Download a tamper-proof CSV audit trail. Anyone can verify the integrity of your ledger independently.

Ready to build your audit trail?

Free during the early access period.

Create your account

After registration, a pre-loaded Demo-scenario (AAPL · CSPX.L · BTC · 2022–2025) will appear on your profile — ready to explore immediately.

Investment Disclaimer: ChronoLedger is a personal record-keeping tool only. It does not provide investment advice, tax advice, or financial recommendations of any kind. All data is for informational and record-keeping purposes only. Past performance does not guarantee future results. Always consult a qualified financial or tax professional before making investment decisions. See our Terms of Service and Privacy Policy.

Your financial history, exactly as it happened.