Small and static.
46 are static builds, 2 are Next.js apps, and 2 are Node API apps. 48 of the 50 have no npm dependencies. All of them run on Cloudflare.
UTILITY PORTFOLIO
50 small web tools I built and run.
Calculators, planners, and lookup tools. Each one answers a single practical question, like what a 3D print job should cost or how much tile a room needs. 33 are live on their own domains and 17 are deployed as previews.
- 50 sites built and running
- 33 live on their own domains
- 17 deployed as previews
- 6 categories
HOW THEY ARE BUILT
Small sites on shared tooling.
One shared data service.
One shared Cloudflare Worker serves public data from sources like FRED, SEC EDGAR, FINRA, and NYC Open Data to the sites that need it, with caching, timeouts, and a last good fallback.
Repeatable releases.
Live sites are released from pinned commits, with a receipt recorded for each one. A launch controller checks preview builds before they go out, and previews stay out of search engines.
Analytics only with consent.
Every site asks before measuring anything, and sends no analytics request until the visitor agrees.
Markets and investing
10 live
BuybackLedger
Compare reported share buybacks with trading volume.
buybackledger.com
DividendPathCalc
Model dividend growth, reinvestment, taxes and inflation.
dividendpathcalc.com
EarningsMoveBook
Compare earnings implied moves with actual past moves.
earningsmovebook.com
FundOverlapCheck
Compare two ETFs and see their shared holdings.
fundoverlapcheck.com
InsiderFilingContext
Track SEC Form 4 insider filings back to their source.
insiderfilingcontext.com
InsiderFilingDesk
Read SEC Form 4 insider filings with research guides.
insiderfilingdesk.com
OptionHistoryDesk
Reproduce max-pain calculations from open-interest snapshots.
optionhistorydesk.com
OptionsPositionDesk
Learn max pain and options positioning with sample data.
optionspositiondesk.com
ShortInterestDesk
Look up short interest and days to cover by ticker.
shortinterestdesk.com
SplitDilutionDesk
Separate stock split mechanics from dilution.
splitdilutiondesk.com
Money, work and immigration
5 live
RSUPlanningDesk
Compare RSU withholding with estimated tax owed.
rsuplanningdesk.com
SponsorFilingMap
Look up H-1B labor-condition filings by employer.
sponsorfilingmap.com
TreasuryLadderCalc
Compare T-bills with a savings account after taxes.
treasuryladdercalc.com
VisaDateLedger
Compare your priority date with visa bulletin cutoffs.
visadateledger.com
WARNNoticeDesk
Track WARN layoff notices, amendments and date changes.
warnnoticedesk.com
Home and property
6 live · 3 previews
ApplianceAgeBook
Record appliances and plan replacement reserves.
applianceagebook.com
HomeMathKit
Estimate mortgage payments with taxes, PMI and extra payments.
homemathkit.com
KerfCount
Turn wood project parts into cut layouts and a lumber list.
kerfcount.com
PermitRevisionDesk
Track changes to NYC building permits over time.
permitrevisiondesk.com
RoomTakeoff
Calculate tile, paint and trim materials and budget.
roomtakeoff.com
WattReplay
Compare flat and time-of-use electricity cost from meter data.
wattreplay.com
Previews
- Home Backup Power Runtime Planner Estimate backup battery runtime from your home load list.Preview
- Rental Turnover Budget Planner Plan rental turnover tasks, labor, supplies and budget.Preview
- Replacement Water Filter Finder Compare replacement water filters by fit, life and yearly cost.Preview
Hobbies, gear and travel
8 live · 3 previews
BackfocusLab
Check telescope backfocus spacing and sensor coverage.
backfocuslab.com
BikeFitDelta
Compare bicycle stack, reach and stem cockpit geometry.
bikefitdelta.com
PlantingWindowPlan
Find a frost-safe planting window from forecast and crop limits.
plantingwindowplan.com
PortDayPlan
Plan a cruise port day around the all-aboard deadline.
portdayplan.com
Rider Triangle
Check rider knee and elbow angles from your measurements.
ridertriangle.com
SleeveCount
Match board game cards to sleeve packs by fit and price.
sleevecount.com
TankStockPlan
Check aquarium stocking against water ranges and tank size.
tankstockplan.com
Yarnally
Find yarn substitutes and compare gauge, fiber and skeins.
yarnally.com
Previews
- Camera Rig Power Compatibility Check camera-rig power specs for voltage, current and headroom.Preview
- Espresso Accessory Compatibility Compare espresso accessory sizes against machine references.Preview
- RV Payload and Trip Planner Check RV payload, axle, hitch and trailer weight ratings.Preview
AI and tech tools
3 live · 2 previews
ImageClueCheck
Check image metadata and provenance markers for AI clues.
imagecluecheck.com
TextClueCheck
Check writing patterns and repetition for AI clues.
textcluecheck.com
VersionEndWatch
Track software end-of-life dates in a support queue.
versionendwatch.com
Previews
- Home Network PoE Budget Planner Plan switch ports, uplinks and PoE power headroom.Preview
- NAS Storage and Backup Planner Compare RAID capacity with backup storage needs.Preview
Small business and trades
1 live · 9 previews
SpoolMargin
Price 3D print jobs from filament, machine time, labor and fees.
spoolmargin.com
Previews
- Carton Fit and Shipping Planner Compare carton sizes, rotations, cushioning and packaging cost.Preview
- Catering Menu Cost Planner Cost a catering menu from portions, yields, labor and margin.Preview
- Commercial Cleaning Bid Builder Build a cleaning bid from scope, labor, supplies and margin.Preview
- Consumables Reorder Planner Plan consumables reorders from daily use and lead time.Preview
- Contractor Change-Order Ledger Track approved and pending change-order value.Preview
- Event Rental Kit Planner Check rental kit stock against dated event bookings.Preview
- Field Job Photo Report Builder Build a printable field job report from photo captions and labor costs.Preview
- Small Business Label and Barcode Batch Create printable Code 39 barcode label batches from SKUs.Preview
- Wholesale MOQ Landed-Cost Planner Work out landed unit cost of an MOQ order with freight, FX and fees.Preview
Live sites run on their own domains. Previews are deployed and working but not launched yet, so search engines are asked not to index them.
GET IN TOUCH
Have a role in mind?
Applied AI · Forward Deployed Engineering · Product engineering