As developers, we often need quick access to reliable US data — whether for side projects, research, or building features. Here are some free tools powered by public government data that I've found incredibly useful.
SalaryByCity
US salary data for 800+ occupations across 400+ cities.
Check it out: salarybycity.com
CostByCity
Cost of living comparison across US metro areas (BEA RPP).
Check it out: costbycity.com
ZipPeek
ZIP code demographics, income, and IRS migration flow data.
Check it out: zippeek.com
DegreeWize
College tuition, acceptance rates, and earnings-to-debt outcome data.
Check it out: degreewize.com
CalcPeek
Free online calculators and unit converters.
Check it out: calcpeek.com
Related Free Tools
- KotobaPeek — Japanese dictionary with 34,000+ word definitions and POS tagging
- HomePricePeek — Compare home prices and rent across 500+ cities worldwide
- RebatePeek — Federal and state energy rebate stacks (IRA credits, DOE)
- EvictionLawPeek — Eviction laws, notice periods, and tenant rights by state
More from the DataPeek Network
- ChildCarePeek — Childcare costs by state and care type
- CatBreedPeek — Cat breed profiles, AAFP Five Pillars, and WSAVA BCS reference
- NameBlooms — Baby name meanings, SSA cohort interpretation, and popularity trends
- DrugPricePeek — Prescription drug prices, NADAC data, and pharmacy comparison
All data tools are free and use public US government data. No signup required. Full directory: datapeekfacts.com.
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