Free
ROI calculator
Calculate return on investment, net return and the value returned for each unit of cost.
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Calculate, convert, write, inspect and create with 109 focused tools that work directly in your browser—no account, no downloads and no data detour.
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Tools organised around real tasks.
Start with what you are trying to finish. Every category connects related calculators and helpers, so the next useful step is always close.
Money & business
Clear calculators for VAT, pricing, interest, borrowing, savings and everyday business decisions.
Marketing & growth
Measure campaigns, model customer economics and prepare practical SEO and marketing assets.
Home & lifestyle
Plan decorating, household costs, meals, moves and measurements with less guesswork.
Writing & content
Count, clean, compare and transform text for clearer writing and faster publishing.
Work & productivity
Simple planning tools for focus blocks, priorities, meeting costs and realistic estimates.
Dates & time
Calculate date gaps, deadlines, working days, ages, shifts, countdowns and timestamps.
Travel & transport
Estimate fuel, mileage, luggage and journey timings before you set off.
Health & wellbeing
Gentle planning helpers for sleep, hydration, movement and everyday routines.
Learning & education
Check grades and reading pace, then turn results into realistic study plans.
Digital & media
Resize images, check contrast, estimate files and convert common units locally.
Shopping & decisions
Compare unit prices and stacked discounts before spending.
Developer tools
Format, encode, decode, test and inspect common development data without sending it away.
Data & file tools
Convert structured data, build reusable code snippets and prepare small files in your browser.
Security & privacy
Generate strong passwords and random values, and assess password structure locally.
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Popular problems, solved quickly.
17 tools shown. Search above or open the full library to see everything.
Free
VAT calculator
Add or remove VAT and see the net, tax and gross amounts instantly.
Free
Word counter
Count words, characters with and without spaces, sentences, paragraphs, lines, reading time and speaking time as you type.
Free
Image compressor & resizer
Resize and compress JPEG, PNG or WebP images locally, then download the result.
Free
UTM URL builder
Add consistent campaign tracking parameters to a landing-page URL without losing existing queries.
Free
CSV to JSON converter
Convert delimited tabular text into formatted JSON arrays or objects in your browser.
Free
Profit margin calculator
Calculate gross profit, profit margin, markup and the cost ratio from a selling price.
Free
Meta tag generator
Generate core title, description, canonical, robots and Open Graph tags with a snippet preview.
Free
Schema markup generator
Create a JSON-LD block for a Schema.org type with optional validated extra properties.
Free
Date difference calculator
Count calendar days, weeks and weekdays between two dates.
Free
Event schedule builder
Build a timed event agenda or run sheet from activities, durations and optional changeover time.
Free
Trip budget planner
Estimate a complete travel budget and cost per person from transport, accommodation and daily spending.
Free
Quiz score analyser
Combine several quiz results into an overall percentage, average and ranked breakdown.
Free
Product comparison scorecard
Compare products with the same price, quality, feature and ease-of-use criteria.
Free
Creative brief builder
Turn project facts into a structured, copy-ready creative or content brief.
Free
Unit converter
Convert length, mass, area, volume, temperature, speed, pressure, energy and data units.
Free
Secure password generator
Generate strong random passwords with selected character sets and an entropy estimate.
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20 deeper workflows for repeat work.
Forecast, audit and compare business, marketing, customer, data and SEO work in one advanced suite. Try 1 Premium run as a guest or create a free account for 3 per rolling 24 hours.
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