Free online calculators and tools
Online calculators, converters and browser tools
A RapidTables-style utility directory: simple pages, direct answers, local browser execution, and one focused URL per tool.
Popular Tools
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Browse tools by category
Calculators
- Percentage CalculatorLive
- Etsy Profit CalculatorLive
- Compound Interest CalculatorLive
- BMI CalculatorLive
- Average CalculatorLive
- Discount CalculatorLive
- Sales Tax CalculatorLive
- Loan CalculatorLive
- Date CalculatorLive
Conversion
- Length ConverterLive
- Weight ConverterLive
- Temperature ConverterLive
- Area ConverterLive
- Volume ConverterLive
- Speed ConverterLive
- Time ConverterLive
- Number Base ConverterLive
- Timestamp ConverterLive
- Data Storage ConverterLive
- Image ConversionPlanned
Code Tools
- Base64 Encoder DecoderLive
- URL Encoder DecoderLive
- JSON FormatterLive
- SHA Hash GeneratorLive
- UUID GeneratorLive
- CSS FormatterLive
- JavaScript FormatterLive
- Regex TesterLive
- ASCII TableLive
- XML FormatterLive
Text Tools
- Word CounterLive
- Case ConverterLive
- Duplicate Line RemoverLive
- Text CompareLive
- Line SorterLive
- Markdown PreviewerLive
Web Design
- Color ConverterLive
- Color PickerLive
- HTML ViewerLive
- HTML MinifierLive
- HTML Entity ConverterLive
- URL ParserLive
- User Agent ParserLive
- CSS FormatterLive
- QR Code GeneratorLive
Online Tools
- Password GeneratorLive
- Online NotepadLive
- Image ResizerLive
- Image CompressorLive
- WebP to JPG ConverterLive
- PNG to JPG ConverterLive
- JPG to PNG ConverterLive
- Image Metadata ViewerLive
- Online NotepadPlanned
- PDF ToolsPlanned
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Multilingual static-tool foundation
The current version supports a front-end language switcher and keeps each tool as a separate static URL. The next SEO step is generating real `/zh/`, `/es/`, and other language URL copies for indexable multilingual pages.