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Generate original mathematics practice questions across school, competitive-exam, university, and advanced levels. For students, teachers, and tutors.
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Generate TypeScript interfaces from JSON with optional readonly and export. Use for TS types; for Go use json-to-go, for generic code use json-to-code. Input: JSON ≤10MB. Returns .ts interfaces or JSON error. 100% client-side.
Infer JSON Schema from sample JSON for validation. Use when authoring schemas; for validating instances use json-validator. Input: JSON ≤10MB. Returns JSON Schema draft. 100% client-side.
Estimates income tax from income, deductions and filing regime. Use when comparing old vs new regime liability; differs from capital-gains-tax by salary income vs asset-sale gains. Returns tax payable, effective rate and slab split. 100% client-side.
Estimates tax from buy price, sell price, holding period and asset type. Use when selling stocks, property or funds; differs from income-tax-calculator by asset gains vs salary income. Returns taxable gain, tax due and STCG/LTCG split. 100% client-side.
Plans multi-debt payoff from balances, APRs, minimums and monthly budget. Use when comparing snowball vs avalanche; differs from credit-card-payoff by multiple debts vs single card. Returns debt-free date, interest total and order. 100% client-side.
Plans single-card payoff from balance, APR and monthly payment. Use when clearing one card fastest; differs from debt-payoff by single card vs multi-debt snowball/avalanche. Returns months to payoff, interest cost and schedule. 100% client-side.
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