Free online tools for everyday tasks
Use these free online tools in your browser to merge or extract PDF pages, rotate a document, compress an image, prepare text for search, create a QR code, or estimate a discount. No account required.
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Jump straight to a tool, or search by task.
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PDF merge, split & rotate
Choose PDF files to merge, extract page numbers from one PDF (for example 1-3,5), or rotate every page 90° clockwise.
Image compressor & converter
Resize and convert an image to JPEG or WebP. Your original file stays unchanged.
Text & SEO helper
Count words and characters, preview a search title and description, change case, or make a URL-friendly slug.
QR code maker
Create a QR code for a URL or short text, then download the PNG. Text is encoded in this browser.
Discount & tip calculator
Estimate sale price after discount and add estimated sales tax; calculate a tip for a bill.
Tax rates vary by location; this is an estimate, not a tax quote.
Percentage calculator
Find a percentage of a number or compare the percentage change between two values.
Age calculator
Calculate age in years, months, and days from a birth date. Your date stays in this browser.
Unit converter
Convert common length, weight, and temperature units.
JSON formatter & validator
Check whether JSON is valid, then format it for reading or minify it.
Random password generator
Create a password locally with your browser’s secure random generator. It is not saved or sent.
More free online tools for everyday tasks
These browser-based helpers cover common calculations and text tasks without requiring a signup. Use the search box above to find them by name or task.
Calculate percentages and age
The percentage calculator finds a percentage of a value and measures the increase or decrease between two non-zero values. The age calculator compares a chosen birth date with today and shows whole years, months, and days; it rejects future dates.
Convert common units
Choose length, weight, or temperature, enter a value, and select the units. Length and weight conversions use standard fixed conversion factors. Temperature converts between Celsius and Fahrenheit.
Format JSON safely
Paste JSON to check its syntax, format it with indentation, or minify it. The text is processed in this page. Invalid JSON displays the parser error so you can locate a formatting issue.
Generate a random password
Choose a length from 8 to 64 characters and whether to include symbols, then generate a password in this browser. The site does not save it. Copy it only into a trusted password manager; avoid sharing it or reusing it across accounts.
How to use these free online tools
Start by choosing the tool that matches your task. These free online tools run in this page, so you can use their basic features without creating an account. The controls work on desktop and mobile screens, although large files may take longer on older devices.
Merge, extract, or rotate a PDF
Select one or more PDF files. Choose Merge PDFs to combine selected documents in their listed order. To make a smaller PDF, enter page numbers such as 1-3,5 and choose Extract pages. The rotate option turns every page in the first selected file 90 degrees clockwise. Keep each file under 50 MB. Damaged or password-protected PDFs may not process.
Resize and convert an image
Choose an image, set its maximum width, select JPEG or WebP, and adjust quality from 10 to 100. The original file is not changed. JPEG does not preserve transparency; choose WebP when you need a smaller modern image and your destination supports it.
Prepare text, a search snippet, or a URL slug
Enter a search title and description to see character counts; the suggested lengths are guidelines, not ranking guarantees. Paste text to count words and characters, change its case, copy it, or make a URL-friendly slug. Slugs use lowercase English letters, numbers, and hyphens, so some writing systems may not produce a useful slug.
Create a QR code
Enter a short URL or text and choose Create QR code. When the preview appears, choose Download PNG. Scan the code with a trusted device before printing or sharing it, and check the destination URL carefully.
Estimate a discount, tax, and tip
Enter the original price, discount, estimated tax, and tip percentages. The calculator applies the discount, estimates tax on the discounted price, and calculates the tip on the original amount. Tax rates vary by location, so use the result as a shopping estimate rather than a tax quote or receipt.
Privacy and availability
PDFs, images, and text are processed in your browser and are not sent to HappyShopperHub by these tools. The PDF and QR features load open-source libraries from public CDNs, so your browser requests those library files when the page opens. A connection or browser that blocks those CDNs can prevent the related tool from loading. Avoid using a shared device for private files, and close the page when finished.
PDF handling uses the open-source pdf-lib project; QR generation uses QRCode.js. Those libraries load from their public CDNs. If a library is unavailable, its tool will show an error. This page does not promise that an online tool replaces professional legal, tax, or medical advice.
Looking for printable planners and digital downloads? Explore HappyShopperHub downloads and curated picks.
Loan payment calculator
Estimate a fixed-rate monthly payment from the amount, annual interest rate, and term. Results are estimates; lender fees and taxes are not included.
Compound growth calculator
Project how an initial amount and monthly deposits could grow at a steady annual rate, compounded monthly. Actual returns vary and are not guaranteed.
This illustration excludes taxes, fees, and changing rates. It is not investment advice.
Bill split calculator
Split a bill evenly and add an optional tip percentage.
Image dimensions checker
Check an image’s pixel width, height, and aspect ratio in your browser. The file is not uploaded.
Campaign URL builder
Add UTM campaign tags to a link so analytics can group visits by source and campaign. The URL is built on this device.
Meta tag generator
Draft a page title, description, and canonical URL tag. Preview the snippet and copy HTML to your page head.
Keyword frequency checker
Count how often a word or phrase appears in your draft. This is a writing check, not a search ranking score.
Color contrast checker
Check text/background contrast against WCAG AA guidance. Verify colors in your actual design too.
Product break-even calculator
Estimate the number of sales needed to cover fixed costs after per-sale fees and variable costs. Estimate only; check your actual platform fees.
Images to PDF
Combine selected JPG or PNG images into one PDF, in the order you choose. Files stay on this device.
Simple invoice maker
Create and print a basic invoice or save it as a PDF from your browser. This tool does not send invoices or collect payment.
Reading time estimator
Estimate reading time for an article, email, or script. Your text stays in this browser.
Unit price comparison
Compare two package prices using the same quantity unit, such as ounces, grams, or items.
VAT & sales tax calculator
Calculate tax-exclusive or tax-inclusive prices in the same currency as your input.
Illustrative calculation only. Tax rules, exemptions, rounding, and applicable rates depend on your location and transaction; confirm with your local tax authority or adviser.
Date difference calculator
Count whole calendar days between two dates. Date values stay in this browser.
Image aspect ratio & social size helper
Find an image’s aspect ratio and compare its dimensions with common social image sizes. This is a planning aid; platform specifications can change.
Choose the right free tool quickly
Use the search field for a task such as “merge PDF,” “compress image,” “write meta description,” or “split bill.” PDF and QR functions need their public libraries to load. If a tool reports a library error, refresh the page or try another browser. Check generated files before sharing them.
Image sizes for social sharing
Use the image ratio helper to compare a draft image against a common square, portrait, vertical, or link-preview ratio. These are starting points. Always verify current requirements in the platform where you plan to post, because image recommendations may change.
Privacy and safe use
Do not use a shared computer for sensitive files. Browser-based processing can keep file content on the device, but external libraries still load from their providers. For important documents, keep an original copy and inspect every downloaded result.
Add or subtract days from a date
Calculate a calendar date before or after a chosen day.
PDF properties editor
Read or update a PDF’s title, author, and subject, then download a copy. This changes document properties, not visible text on its pages.