OnlineFreeToolBox

How-to Guides

Step-by-step guides for every tool on this site. Each guide takes a few minutes to read and ends with the free tool that does the job — in your browser, with no sign-up and no uploads.

PDF Tools

Guide

How to Merge PDF Files

Learn how to merge PDF files into one document for free, in your browser. Step-by-step guide with no sign-up, no uploads and no watermarks.

Guide

How to Compress a PDF

Learn how to compress a PDF and make the file smaller for free, in your browser. Step-by-step guide, no sign-up, no uploads.

Guide

How to Convert PDF to Word

Learn how to convert a PDF to an editable Word document for free, in your browser. Works on scanned PDFs too, with OCR. No sign-up.

Guide

How to Crop a PDF

Learn how to crop a PDF and trim wide white margins so the content fills the page better. Free, in your browser, no sign-up.

Guide

How to Edit a PDF

Learn how to edit a PDF directly: click any text and change it in place, then download the edited PDF. Free, in your browser, no sign-up.

Guide

How to Convert Excel to PDF

Learn how to convert an Excel spreadsheet to a PDF for free, in your browser, so a table can be shared, printed or archived unchanged.

Guide

How to Convert Images to PDF

Learn how to convert images to a single PDF, one image per page, for free, in your browser. Photos, scans and screenshots.

Guide

How to Extract Text From an Image

Learn how to extract text from an image with OCR for free, in your browser, and turn a photo or screenshot into text you can copy.

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How to Convert JPG to PDF

Learn how to convert JPG images to a single PDF, one image per page, for free, in your browser. Photos, scans and screenshots.

Guide

How to Organize PDF Pages

Learn how to organize PDF pages: reorder them, delete the ones you do not need, and download a clean file. Free, in your browser.

Guide

How to Add Page Numbers to a PDF

Learn how to add page numbers to a PDF for free, in your browser — choose the position, starting number and size. No sign-up.

Guide

How to Convert PDF to Excel

Learn how to convert a PDF to an Excel spreadsheet for free, in your browser, so lists and report text become rows you can work with.

Guide

How to Convert PDF to Images

Learn how to convert every page of a PDF to PNG images for free, in your browser, for sharing, presentations or designs.

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How to Convert PDF to JPG

Learn how to convert every page of a PDF to JPG images for free, in your browser, for messages, social media and websites.

Guide

How to Convert PDF to PowerPoint

Learn how to convert a PDF to PowerPoint for free, in your browser — each page becomes a slide with its text, ready to design.

Guide

How to Use the PDF Toolkit

Learn how to use the PDF Toolkit: find the right tool for any PDF job — merge, split, edit, convert and more. Free, in your browser.

Guide

How to Convert PowerPoint to PDF

Learn how to convert PowerPoint slides to a PDF for free, in your browser, for sharing, printing or archiving. No sign-up.

Guide

How to Rotate PDF Pages

Learn how to rotate PDF pages by 90, 180 or 270 degrees for free, in your browser — all pages, or only the ones you list.

Guide

How to Split a PDF

Learn how to split a PDF for free, in your browser — into single pages, a page range, specific pages, or fixed chunks of equal size.

Guide

How to Unlock a PDF

Learn how to unlock a PDF for free, in your browser, by re-saving it without its password — and when that is not possible.

Guide

How to Add a Watermark to a PDF

Learn how to add a text watermark to every page of a PDF for free, in your browser — size, opacity and position you choose.

Guide

How to Convert Word to PDF

Learn how to convert a Word document to a PDF for free, in your browser, so it can be shared, printed or archived unchanged.

Calculators

Guide

How to Calculate Percentage

Learn how to calculate a percentage of a number and percentage change, with easy examples and the formula. Free calculator included.

Guide

How to Calculate BMI

Learn how to calculate BMI from weight and height, what the healthy range is, and what your result means. Free BMI calculator included.

Guide

How to Calculate Age

Learn how to calculate age exactly, in years, months and days, from any date of birth to any date you choose. Free calculator included.

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How to Calculate CGPA

Learn how to calculate CGPA from your semester SGPAs and credits, on a 10-point or 4.0 scale, and how to convert it to a percentage.

Guide

How to Calculate Discount

Learn how to calculate a discount: the amount saved and the sale price, from any original price and discount percentage. Free calculator included.

Guide

How to Calculate Duration

Learn how to calculate the duration between two dates and times — in hours, minutes and seconds, with totals in days. Free counter included.

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How to Calculate Loan EMI

Learn how to calculate loan EMI from the amount, interest rate and term, with total interest and total repayment. Free calculator included.

Guide

How to Calculate Negative Marks

Learn how to calculate your final score with negative marking: marks earned, marks deducted and percentage. Free calculator included.

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How to Calculate SGPA

Learn how to calculate SGPA from your subjects, credits and grades, on a 10-point, 4.0 or custom scale. Free calculator included.

Guide

How to Calculate a Tip

Learn how to calculate a tip and the total bill from any bill amount and tip percentage — restaurants, cafes, taxis and delivery.

Guide

How to Convert Units

Learn how to convert units — length, weight and temperature — for free, in your browser, with the exact definitions the converter uses.

Image Tools

Guide

How to Compress an Image

Learn how to compress an image and reduce its file size for free, in your browser, keeping the same pixel dimensions. No sign-up.

Guide

How to Convert Image Format

Learn how to convert an image between PNG, JPG and WebP for free, in your browser, and which format to pick for each job.

Guide

How to Resize an Image

Learn how to resize an image to exact dimensions — or crop out just the part you need — for free, in your browser. No sign-up.

Guide

How to Make a Passport Photo

Learn how to make a passport photo online for free, in your browser — the right size, background and framing for your country.

Generators

Guide

How to Make a QR Code

Learn how to make a QR code from text or a link for free, in your browser, and download it as a PNG. No sign-up, no watermark.

Guide

How to Generate a Strong Password

Learn how to generate a strong, random password for free, in your browser, with the length and character types you choose.

Text Tools

Guide

How to Count Words

Learn how to count words, characters, sentences and paragraphs as you type, for free, in your browser. No sign-up.