Tools that just work
Free, browser-based utilities for developers and finance. No sign-up, no upload — everything runs in your tab.
28 tools
Developer Tools
Format, convert, validate, and generate. JSON, JWT, regex, timestamps, and more.
JSONJWTRegexBase64
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6 tools
Finance Tools
Model loans, mortgages, take-home pay, and investments — clear numbers in seconds.
LoansMortgageSalaryInvesting
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22 tools
Miscellaneous Tools
Diffs, QR codes, encoders, and regional utilities for Southeast Asia.
DiffQREncodingSEA
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