Utility Tools
Converters for units and color formats, plus a calculator. Useful when you need an answer without opening a spreadsheet.
- Convert common units without leaving the browser
- Pick and convert colors between formats
- Use a simple calculator for quick math
Tip: Results are computed locally. Double-check critical engineering or medical conversions with a second source.
Tools in this category
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- How to prepare a freelance invoice and client files
Create a simple invoice PDF, check line-item totals and organize client attachments without an account.
- How to create a simple invoice PDF
Line items as description | qty | rate, automatic totals, and the difference between a PDF and bookkeeping software.