Stop guessing where your money goes.
The high-precision financial ledger built for engineers and thinkers. Track transactions with sub-millisecond precision, automate envelopes, and monitor accounts with developer-grade clarity.
Interactive Observability For Every Transaction.
Explore every dimension of your finances before signing up. Test interactive cashflow timelines, inspect category breakdowns, simulate budget limits, and monitor multi-account net worth.
Income & Expense Realtime Trajectory
Monitor cash velocity and net surplus with sub-millisecond precision.
Sub-Millisecond Speed
Powered by Bun runtime and PostgreSQL with indexed transactions. Input entries in seconds with automated hotkeys and quick action FAB.
Dynamic Budget Envelopes
Establish category guardrails that roll over month-to-month. Get immediate visual alerts long before your accounts experience overflow.
Instant CSV & Excel I/O
Never get locked in. Export sanitized ledger histories to CSV or Excel with one click. Import statements from any banking provider seamlessly.
Double-Entry Precision
Every credit is balanced by an offsetting debit. Real-time balance sheets and trial balances ensure zero reconciliation drift.
Multi-Account Orchestration
Manage bank accounts, high-yield vaults, crypto assets, and credit cards across multiple currencies seamlessly.
Private & Zero Telemetry
Your financial records belong strictly to you. Self-hostable, no third-party trackers, no advertisements, and zero surveillance.
Input transactions at the speed of thought.
Whether using our Quick Transaction FAB modal or analyzing ledger categories, everything in MExpense responds with instantaneous feedback. No bloated ads, no upsells, and zero third-party telemetry.