All Free Online Calculators & Tools
Browse our complete collection of 5 free tools. Every calculator works instantly in your browser – no signup required, no data stored, completely free.
Date & Time
Calculate durations, count days, and manage dates
Days Between Dates Calculator
Calculate the exact number of days, weeks, and months between any two dates. Includes business day counting, date swapping, and multiple output units. Perfect for planning vacations, tracking project timelines, or counting down to events.
Countdown Timer & HTML Widget
Create live countdown timers for any event with customizable display formats. Generate embeddable HTML widgets and shareable countdown pages for your website or blog — great for product launches, events, and deadlines.
Money & Tax (Canada)
Canadian tax and salary calculators with 2026 rates
Planning & Productivity
Tools to help you plan, write, and calculate
Word Counter & Readability Analyzer
Count words, characters, sentences, and paragraphs instantly. Get reading time estimates and Flesch readability scores for your content.
Percentage Calculator
Multi-mode percentage calculator: find X% of Y, calculate percentage change between values, determine what percent X is of Y, and reverse percentage calculations.
Coming Soon
We're constantly adding new tools. Coming soon:
- Age Calculator
- Mortgage Calculator (Canada)
- Unit Converter
- Tip Calculator
Have a tool suggestion? Let us know!
Why Use infinit5 Tools?
100% Free: Every tool is completely free with no hidden costs or premium tiers.
Privacy First: All calculations happen in your browser. We don't store or track your data.
No Signup: Use any tool instantly without creating an account.
Canada-Focused: Our tax and financial tools are built specifically for Canadians with accurate local rates.
Last updated: March 2026