30 tools.One click.
Free, no sign-up and nothing uploaded: every tool runs inside your browser.
See all 30 toolsIt starts with this page's headline. Change it and watch every tool respond.
Most popular
- QR code generatorLink, Wi-Fi, contact…PNG and SVGGenerators
- Secure password generator8 to 128 charactersWeb CryptoGenerators
- Percentage calculator4 calculationsWith the formulaCalculators
- Image compressorUp to 30 imagesZIP downloadImage and text
- Word counterReading timePlatform limitsImage and text
- JSON formatterErrors with line and columnIndented or minifiedDeveloper
Clear interfaces, instant results.
All 30 tools,
by task.
Create QR codes, passwords, random numbers, usernames, placeholder text and slugs.
- QR code generatorCreate and download QR codes as PNG or SVG.
- Secure password generatorStrong random passwords generated on your device.
- Random number generatorRandom numbers within a range, with or without repeats.
- Username generatorOriginal username ideas for social networks and games.
- Lorem ipsum generatorPlaceholder text by paragraphs, sentences or words.
- URL slug generatorTurn titles into clean URLs without accents or symbols.
Percentages, VAT, rule of three, hours worked, net salary and compound interest.
- Percentage calculatorCalculate percentages, discounts and changes.
- VAT and discount calculatorAdd or remove VAT and apply discounts with an editable rate.
- Rule of three calculatorDirect and inverse rule of three, step by step.
- Hours worked calculatorAdd up shifts with breaks, even across midnight.
- Net salary estimatorExplained gross-to-net estimate with visible assumptions.
- Compound interest calculatorProjection with contributions, formula and yearly table.
Compress, resize and convert images in your browser; count words and clean up text.
- Image compressorReduce image file size right in your browser.
- Image resizerChange pixel dimensions while keeping the aspect ratio.
- PNG, JPG and WebP converterChange image formats without uploading them.
- Word counterCount words and characters and estimate reading time.
- Uppercase and lowercase converterUppercase, lowercase, title case, camelCase and more.
- Remove extra spacesClean up double spaces, tabs and blank lines.
JSON, Base64, URL encoding, Unix timestamps and unit conversion.
- JSON formatterValidate and pretty-print or minify JSON data.
- JSON validatorCheck whether JSON is valid with clear error messages.
- Base64 encoder and decoderConvert UTF-8 text and files to and from Base64.
- URL encoder and decoderPercent-encode URL components or full URLs.
- Unix timestamp converterConvert timestamps in seconds or milliseconds to dates.
- Unit converterConvert length, weight, temperature and more.
Date differences, adding days, world clock, HEX/RGB colors, palettes and digital sizes.
- Date difference calculatorDays, weeks and months between two dates, with weekdays.
- Add or subtract days from a dateFind a future or past date by days, weeks or months.
- World clockCurrent time in several time zones and a converter.
- HEX and RGB color pickerPick a color and convert between HEX, RGB and HSL.
- Color palette generatorHarmonious palettes with accessible contrast checks.
- Digital storage converterConvert bytes, KB, MB, GB and their binary equivalents.
Practical guides
- How to create strong passwords (and remember them)
- How to calculate percentages: discounts, increases and VAT
- How to optimize images for the web
- The 8 most common JSON errors and how to fix them
- Time zones and daylight saving: how to get them right
- Bytes, bits, MB and MiB: why your drive has “less” space
- How to make a QR code that always scans
- Accessible colours: WCAG contrast explained
Common questions
Yes. Every tool is free with no usage limits. The site is funded by discreet ads that only load if you accept them.
No. Images, text and passwords are processed in your browser with standard technologies such as Canvas and Web Crypto. Go offline and you'll see they keep working.
There are no accounts. Your favourites and recent tools are stored only in this browser, and you can delete them at any time.
Yes, after your first visit. You can also install TodoEnUnClick as an app from your browser's menu.
Every tool explains how it calculates and where its limits are. Tax and financial calculations are estimates and do not replace professional advice.
Of course. Write to us from the contact page and tell us which task you'd like to solve.