SD6 Tools
14 free dev & finance tools in one place. No signup.
SD6 Tools launched on April 1, 2026.
What it does
I kept switching between 5 sites for UUID generation, Base64 encoding, and mortgage math. So I built one toolbox with everything I use daily. 14 tools: password generator, UUID, text encoder, base converter, unit converter, QR codes, timestamps, mortgage calculator (4-scenario comparison), retirement, auto loan, compound interest, savings goals, debt payoff, gas vs electric. All tools run client-side. 4 languages with locale-aware formatting. No account needed.
Access useful tools including GUID generation, password creation, unit conversion, text encoding, and base conversion. All tools are free and work offline.
Transform data between formats, units, and encodings instantly. Convert temperatures, lengths, weights, colors, numbers between bases, and encode/decode text. Financial calculators for mortgage payments, auto loans, retirement planning, and compound interest. Compare scenarios and view detailed amortization schedules. Secure password generators and cryptographic tools to protect your data. Generate strong passwords, UUIDs, and SSH keys with industry-standard algorithms. Professional developer tools for debugging, testing, and coding. Includes JSON formatters, regex testers, hash generators, and JWTfrom sd6tools.net
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