Local by design
Your financial data stays in the workbook you choose.
Local-first desktop app
Your finances, truly yours.
Understand and manage your financial life without accounts, cloud services or telemetry. Your workbook stays on your computer.
Open source
Transparent, auditable and released under Apache 2.0.
Free to use
No subscriptions, paid accounts or hidden services.
Private
No cloud, advertising, analytics or telemetry.
A calmer financial picture
Everything you need. Nothing between you and your data.
ContaMì brings everyday movements, property, vehicles, investments, pensions, recurring items and shared expenses into one coherent view.
The spreadsheet remains the durable source of truth: portable, readable and recoverable without a proprietary cloud.
Feature chapters
One financial story, told from every angle.
Each area shares the same validated data, so connected movements appear once and remain consistent everywhere.
- 01Overview
- 02Transactions
- 03Properties
- 04Vehicles
- 05Investments
- 06Private pension
- 07Recurring items
- 08Shared expenses
- 09Settings & import
01
Your starting point
A complete overview, without losing the details.
Net worth, liquidity, cash registers, properties, investments, pensions and recurring commitments stay visible and reconcilable.
02
Daily clarity
Follow every movement and every balance.
Searchable transactions, filters, accounts and cash registers reveal what happened, when it happened and how it affects liquidity.
03
Homes and income
Properties, utilities, taxes and rent in context.
Track valuations, costs, consumption, configurable taxes and rent payments with separate due periods and actual receipt dates.
04
Every kilometre counts
Understand the real cost of your vehicles.
Fuel, maintenance, insurance, taxes, tyres and optional financing combine into a clear cost history and vehicle comparison.
05
Long-term perspective
Capital invested and current value, side by side.
Contributions, liquidations, valuations and recurring plans remain connected to cash movements without inflating income or expenses.
06
A future without double counting
Private pensions and compartments stay distinct.
Collector funds, individual compartments, contributions and current values are aggregated once while preserving each position’s history.
07
Plan ahead
Recurring income, expenses and instalments that respect history.
Schedule future movements, confirm them safely and change future rates without rewriting operations already completed.
08
Clear balances together
Shared expenses without separate calculations.
Participants, personal shares, payer and reimbursement status remain linked to the original transaction and monthly totals.
09
Your setup, portable
Configure, import and keep control of the workbook.
Manage accounts, cash registers and catalogues, generate guided Excel templates and import them with preview, validation and backup.
Under the hood
Built to stay understandable, recoverable and yours.
- Portable workbook
- A readable .xlsx file is the canonical source. macOS can optionally keep a Numbers mirror.
- Verified saves
- Temporary write, re-read verification, recoverable backups and protection from external edits.
- Hardened desktop app
- Sandboxed Electron renderer, validated IPC, blocked navigation and no network during normal use.
- Guided import
- Versioned Excel templates, security preflight, row-level preview and atomic confirmation.
- Bilingual and adaptive
- Italian and English, system-aware light and dark themes, keyboard-friendly controls.
- Cross-platform releases
- Packages for Windows x64 and macOS on Intel and Apple Silicon, with SHA-256 checksums.
Free · open source · local-first
Take back control of your finances.
Download the latest release for macOS or Windows, or inspect every line of code on GitHub.