Live demo · synthetic data
Personal finance dashboard
Cash flow, budgets, net worth, recurring charges and search, over two years of fake transactions. Click a category, change the period, or generate a whole new household.
Every number here is fictional. No real financial data is used, stored or requested.
Apr 26 to Sep 26
Seed 42. Same seed, same data, every time.
Net worth
$62,448
+$13,591 in period
Income
$36,371
-4% vs previous 6 mo
Spending
$22,780
-11% vs previous 6 mo
Savings rate
37%
+4 pts vs previous 6 mo
Cash flow
Income and spending by month, with the net as a line.
- Income
- Spending
- Net
Insights
Computed from this data. No model involved.
- GoodYou saved 37% of income over this period, up 4 points on the previous 6 months.
- WatchTravel grew the most: $325 more than the previous 6 months.
- GoodFitPass Gym stopped after Jun 26, saving about $468 a year.
- WatchOver budget in September 2026: Travel ($175 over), Dining out ($39 over).
- NoteLargest one-off expense: $395 at Harbor Stay Hotels on 2026-09-19.
Spending by category
Select a category to filter the transactions below.
Budgets
Latest month in the data.
Budgets for September 2026
- Travel$395 of $220
Over by $175
- Dining out$359 of $320
Over by $39
- Housing$1,924 of $1,924
$0 left, close to limit
- Insurance$152 of $152
$0 left, close to limit
- Utilities$232 of $240
$8 left, close to limit
- Personal care$63 of $65
$2 left, close to limit
- Transport$178 of $190
$12 left, close to limit
- Groceries$387 of $560
$173 left
- Entertainment$45 of $80
$35 left
- Subscriptions$37 of $85
$48 left
- Gifts & giving$25 of $70
$45 left
- Shopping$65 of $300
$235 left
- Health$0 of $50
$50 left
Net worth
Checking plus savings, minus card balance.
Recurring charges
Detected from timing and amounts, not from labels.
$44.96/mo in subscriptions, about $540 a year.
Subscriptions
StreamBox
Monthly · next about Oct 3 ▲ was $15.49
$17.99/mo
Tunewave Music
Monthly · next about Oct 14
$10.99/mo
The Weekly Brief
Yearly · next about May 18
$96.00/yr
CloudNote Pro
Monthly · next about Oct 9
$4.99/mo
Pixel Cloud
Monthly · next about Oct 21
$2.99/mo
Bills and regular charges
Maple Court Apartments
Monthly · next about Oct 1
$1,924.00/mo
Shield Auto Insurance
Monthly · next about Oct 10
$138.00/mo
FiberNet Internet
Monthly · next about Oct 18 ▲ was $65.00
$69.99/mo
Clearline Mobile
Monthly · next about Oct 22
$55.00/mo
Aqua Municipal Water
Monthly · next about Oct 16
$45.00/mo
Local Food Bank
Monthly · next about Oct 11
$25.00/mo
Haven Renters Insurance
Monthly · next about Oct 10
$14.00/mo
Ended
FitPass Gym
Monthly · last charged Jun 1 Ended
$39.00/mo
Transactions
287 transactions
| Merchant | ||
|---|---|---|
| 2026-09-30 | Apex Fuel | -$48.57 |
| 2026-09-30 | Noodle Theory | -$13.64 |
| 2026-09-30 | Savings Interest | +$158.38 |
| 2026-09-28 | Blue Door Cafe | -$26.47 |
| 2026-09-27 | Ember Pizza | -$26.10 |
| 2026-09-27 | RideLoop | -$12.23 |
| 2026-09-26 | Bulk Barn Wholesale | -$102.70 |
| 2026-09-26 | Noodle Theory | -$23.41 |
| 2026-09-26 | RideLoop | -$8.99 |
| 2026-09-25 | Noodle Theory | -$17.76 |
| 2026-09-23 | Corner Fresh | -$100.97 |
| 2026-09-22 | Clearline Mobile | -$55.00 |
| 2026-09-22 | Ember Pizza | -$40.18 |
| 2026-09-21 | Pixel Cloud | -$2.99 |
| 2026-09-20 | Rewards Card payment Transfer | -$986.66 |
| 2026-09-20 | The Daily Grind | -$24.55 |
| 2026-09-19 | Harbor Stay Hotels | -$395.00 |
| 2026-09-19 | Harvest & Co Market | -$68.40 |
| 2026-09-18 | FiberNet Internet | -$69.99 |
| 2026-09-18 | Employer Payroll | +$2,673.47 |
Under the hood
How it's built
A seeded generator
Plain TypeScript with a fixed seed. Merchants are invented, amounts follow skewed distributions, and the household has paydays, rent, seasonal bills, lumpy travel, a subscription price rise and a cancellation. Automated tests check determinism, signs, solvency and seasonality.
An analytics layer
Pure functions for monthly totals, category breakdowns, budgets, net worth and recurring-charge detection. Recurring charges are found from the timing and amounts of payments, never from their labels.
A small, accessible UI
Hand-written SVG charts with snapping crosshairs, keyboard navigation and table views of every chart. No charting library, so the page stays fast.
A Firefly III adapter
The UI only knows a Dataset shape. An adapter maps a self-hosted Firefly III into it: a local export script holds the API token, and the page loads the resulting file in your browser without uploading it. Checked against the official API spec and a mock server; not yet run against a live instance.