Free online tools and calculators
Over 70 calculators, converters, text utilities, and developer tools that run entirely in your browser. No sign-up, no downloads, and nothing you type is uploaded.
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Why a New Site’s Impressions Drop After the First Month
A common pattern for a new website: a week or two after launch, Search Console impressions jump to hundreds a day. A few...
Search Console Regex: 12 Filters to Copy and Paste
The regex filter in Google Search Console turns the Performance report from a long list of queries into answers: which q...
How to Count Tokens for ChatGPT, Claude and Gemini (Cost Guide)
A token is the unit a language model reads and bills by. It is usually a word, part of a word, or a punctuation mark. To...
Popular Tools
Explore All ToolsWord Counter
Count words, characters, sentences, and reading time as you type.
WritingPercentage Calculator
Percentages, percentage change, and what share one number is of another.
MathsLoan & EMI Calculator
Monthly repayments, total interest, and the real cost of a longer term.
FinanceBMI Calculator
Body mass index in metric or imperial, with the healthy range for your height.
HealthJSON Formatter
Format, validate, and minify JSON with clear syntax error messages.
DeveloperPassword Generator
Strong random passwords built with your browser’s cryptographic source.
SecurityUnit Converter
Length, weight, temperature, area, volume, speed, time, and data.
ConvertersWhat Is My IP?
Your public IP address, approximate location, and internet provider.
Network