Guides
How to Convert PDF to Word Without Losing Formatting
Why PDF formatting breaks in Word, how to check your file first, and the best free method for text PDFs, scanned pages, brochures and tables.
Our Blog
TooliFyra Blog.
Practical tutorials, clear steps and honest notes for everyday digital tasks.
Guides
Calculators
How to Calculate GPA on a 4.0 Scale (With Examples)
Convert letter grades to points, weight them by credits and divide. A step-by-step GPA formula with worked examples, cumulative GPA and CGPA conversion notes.
Calculators
How to Calculate GST Online: Inclusive and Exclusive Price Formula
Calculate the tax on a pre-tax price or find the GST portion inside a tax-inclusive total. Rates depend on the item and current rules, so verify the applicable rate.
Tutorials
How to Convert Word to PDF for Free—and When to Use a Different Method
Choose the right free Word-to-PDF method for your document. TooliFyra creates a simple text-based PDF; use Word or LibreOffice when exact layout matters.
Tutorials
How to Create a QR Code for Free and Test It Before Printing
Generate a QR image for a URL, text or Wi-Fi details, then scan it before printing. Learn the difference between static codes and redirect-based services.
Calculators
BMI Calculator Explained: What Body Mass Index Can—and Cannot—Tell You
BMI is a screening measure based on height and weight, not a diagnosis. Learn the adult formula, standard categories and important limitations.
Tutorials
How to Merge PDF Files Online and Check the Page Order
Combine multiple PDF files in the order you choose, then review page size, orientation, forms and signatures before sharing the merged document.
Tutorials
How to Compress Images for the Web Without Visible Artifacts
Resize to the dimensions you actually need, choose an appropriate format and compare quality before publishing. Learn how image optimization fits into page speed.
Guides
How to Compress a PDF and Keep Text Readable
PDF compression can reduce image quality or remove searchable text. Learn how to choose a method, inspect the result and understand TooliFyra’s rasterized output.
Guides
How to Make a Simple Text Overlay for OBS Studio
Use TooliFyra’s HTML generator for a lightweight text overlay, save it locally and add it as an OBS Browser Source. Learn what the generator does not create.
Guides
How Many Hours of Sleep Do You Need by Age?
See CDC-referenced daily sleep ranges by age, understand what the numbers do and do not mean, and use a bedtime calculator as a planning aid.
Guides
What Is Keyword Density in SEO? Formula, Example and Limits
Learn the keyword-density formula and use it as a text check—not a ranking target. See why there is no official ideal percentage and how to write naturally.
Guides
How to Convert JPG to PNG Without Adding More Quality Loss
Convert a JPG to PNG while keeping the decoded pixels unchanged. Learn why this does not restore lost detail or create transparency, and when PNG is useful.
Guides
What Is ads.txt? How to Set It Up for Blogger and AdSense
Understand the ads.txt seller declaration, use the exact publisher ID from AdSense and set it up in Blogger. It helps authorize inventory but does not guarantee approval.
Tutorials
How to Resize Images for Instagram, Facebook and X
Resize a photo for social posts, stories or headers without stretching it. Learn how to use presets, check crops and verify each platform’s current specs.
Guides
10 Free PDF Tools for Everyday Study and Work
A practical guide to ten common PDF tasks, from merging and splitting to converting and adding page numbers—with notes on quality and file limitations.
Guides
PNG vs JPG vs WebP: Which Image Format Should You Use?
Compare PNG, JPG and WebP for photos, graphics and transparent images. Learn the trade-offs before converting a file or publishing it on the web.
Guides
3 Free Text Tools: Count Words, Change Case and Create Placeholder Text
A practical guide to counting words, changing text case and generating placeholder copy—plus when each free TooliFyra text tool is useful.