Guide / 01
Why compressing a PDF sometimes makes it bigger
Compare the actual result before replacing a PDF. Learn when image-based compression can help, why it can enlarge text documents and what features it loses.
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Count words, blur faces, scale a recipe, arrange PDF pages or work out a loan payment. Find the tool for your next task and use it in your browser.
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11 categories, 113 tools, nothing behind a login.
Text
13Count words, tidy lists and compare drafts
+ 9 more in TextDeveloper
16Format data, inspect tokens and generate IDs
+ 12 more in DeveloperMoney
12Bills, loan payments, savings and returns
+ 8 more in MoneyMath
11Percentages, fractions, units and grades
+ 7 more in MathTime
8Count days, add up hours and compare time zones
+ 4 more in TimeImages
16Resize photos, blur faces and edit screenshots
+ 12 more in ImagesFiles
20Arrange PDFs, add signatures and convert subtitles
+ 16 more in FilesHealth
5Adult body estimates and running pace
+ 1 more in HealthFood
3Cooking measures, recipe portions and baking tins
Random
4Roll dice, flip coins and pick from a list
Creative
5Pixel art, ASCII, dithering and palettes
+ 1 more in CreativeA few things worth knowing
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No account is needed. Tools have their own format, size and batch limits, and large files can use a lot of memory. The instructions help you choose suitable settings.
Understand the result
Use the examples, method notes and guides to check units and assumptions. A financial or health estimate depends on more than the numbers a calculator can ask for.
Understand the result
All guidesPractical explanations of what the tools do, where they help and where their limits matter.
Guide / 02
What photo metadata can reveal — and how to remove it
Check photos for GPS, camera and author details, save a cleaned copy and understand the trade-offs around orientation, colour profiles and metadata removal.
Guide / 03
Percent vs percentage points: a small wording difference that changes the number
An interest rate rising from 2% to 3% is one percentage point, and also a 50% increase. Why the two phrasings differ, and the percentage traps hiding in everyday claims.
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