Moony
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Personal wealth manager

Your whole net worth. Only on your computer.

Bank accounts, investments, crypto, property, loans and insurance in one encrypted database on your computer.

DownloadView the source

Free and open source (AGPL-3.0) · Version 0.10.0 · beta for 1.0

No accountNo cloudNo telemetryAES-256 encrypted databaseWorks offline10 languages
Dashboard with the net worth, its history and the totals of a sample profile

Sample profile

One number for everything

Net worth across everything you own and owe.

  • Deadline and maturity reminders
  • Main currency from 36 currencies
  • History from 30 days to all time
The totals of assets, liabilities and free cash of a sample profile, with the deadlines and reminders coming up next

Statements in, a categorized ledger out

Import a bank CSV; 16 bank presets, column detection for the rest.

  • Duplicates skipped, imports undoable
  • Rules learned from your choices
  • Balance history and monthly flows
Bank account page with the balance, a 12-month chart of incoming and outgoing money and the start of the transaction ledger

Where the money went, and where it will go

A report by period and category, and a plan ahead.

Cashflow report with income, expenses and savings for a year and a chart by month
Cashflow planning with planned income and expenses grouped by category

Investments with honest returns

Time-weighted and money-weighted return, drawdown, deposits against gains, positions split by tag.

  • Stocks and ETFs with live prices
  • Crypto with CoinGecko prices
  • Broker exports: XTB, Trading 212, Degiro, Interactive Brokers
Stock analysis with time-weighted and money-weighted return, a return chart split by region and a drawdown panel

The other half of the balance sheet

Property valuations and costs, loan schedules, insurance payment calendar.

Loans with outstanding balances, rates and the debt trajectory over ten years

What it tracks

  • Bank accountsStatements, rules
  • BudgetsMonthly limits
  • CashflowReport and plan
  • Stocks and ETFsReturns, dividends
  • CryptoHoldings, history
  • Real estateValues, rent, costs
  • Bonds and other assetsCoupons, maturities
  • LoansSchedules, extra payments
  • InsurancePayment calendar

10 languages · 45 currencies · 16 bank presets

What leaves your computer

No balances, no names

Only prices, exchange rates and the update check go online; the price services see the ticker symbols and coin IDs you track, never amounts or names.

Encrypted on disk

AES-256 database. Attachments and the JSON export are plain; add full-disk encryption.

Your keys, your copies

Recovery key, one-file backup, JSON export.

The complete list, written to be checked against the code →

Every request also reveals your IP address to the service that receives it, as any internet request does.

Off by default

Connect an AI assistant to your finances

Claude or another MCP client can read and change your data through a local server. The client processes it, usually in its provider's cloud.

claude mcp add --transport http moony http://127.0.0.1:41414/mcp --header "Authorization: Bearer <token>"

Install it. There is no sign-up after.

Version 0.10.0 · released 12 October 2026 · What changed →

macOS

Apple Silicon16.1 MBIntel17.3 MB

Not signed by Apple yet. If macOS calls the app damaged, run xattr -cr /Applications/Moony.app once.

Windows

Installer15.0 MB

SmartScreen warns once: More info, Run anyway.

Linux

AppImage91.3 MBDebian/Ubuntu17.8 MBFedora/openSUSE17.8 MB

x86_64; AppImage may need libfuse2.

Updates are verified with the project's signing key.All releases and details →
Questions

The honest answers.

Is it really free?
Yes: Moony is open source under the AGPL-3.0 licence, with no paid tier, no trial and no account.
Why does my computer warn me when I open it?
The installers are not signed with Apple and Microsoft certificates yet, which is planned; until then macOS and Windows warn once, though the app is not damaged. Updates are signed by the project and verified before they install.
Does Moony collect any data about me?
No: the app has no analytics, crash reports or usage statistics. Its only requests are for prices, exchange rates and the update check, listed in full on the Privacy page.
What if I forget my password?
Use the 24-character recovery key Moony showed you at setup; it is the only way to reset a password. If you lose both, nobody can open your data, so keep a backup (Settings → Data and backups).
Can I use it on two computers, or on my phone?
No: Moony is desktop only and does not sync, because sync means a server. You can move your data to another computer with a backup file.
Does it connect to my bank?
No: you import the CSV statements you export from your bank, with 16 presets and column detection for other files. A bank connection would put a third party between you and your data.