Browser tools

StationSoft

Privacy-focused finance calculators and developer utilities. Everything runs in your browser.

Tools

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Developer tools

Text Find & Replace

Quickly search and replace text with regex support.

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Markdown Preview

Live markdown editor with real-time preview.

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JSON Formatter

Format, validate, and minify JSON data.

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Finance

VAT Calculator (KDV)

Add Turkish VAT to a net amount or extract it from a gross amount. Rates are 1%, 10%, 20%, or a custom rate.

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IBAN Checker

Validate any IBAN with the ISO 13616 mod-97 check. Turkish IBANs show the bank code and bank name. Nothing leaves your browser.

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Vehicle Tax Calculator (MTV)

2026 Turkish motor vehicle tax for cars, using the official GIB (I) and (I/A) tariffs.

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Loan Calculator

Monthly payment, total interest, and an amortization schedule from principal, monthly rate, and term. Optional Turkish consumer-loan tax estimate.

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Utilities

Simple Counter

A simple tally counter with step control.

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Free online tools

StationSoft is a set of browser tools for finance and development. VAT, vehicle tax, IBAN checks, loan schedules, and developer utilities all run locally on your device.