The ToolBlur Blog

Guides, tips and tutorials to help you get more done with free online tools.

8 Free Online Tools Every Student Needs in 2026

From counting words in an essay to summarizing long readings, these free browser tools save students hours every week — no downloads required.

Weak passwords are the number-one cause of hacked accounts. Here is exactly what makes a password strong — and how to generate and test one for free.

Large images are the top reason web pages load slowly. Learn how compressing them boosts speed, SEO and user experience — for free.

BMI is a quick way to check whether your weight is in a healthy range for your height. Here is what the number means — and its limits.

HEX, RGB and HSL all describe the same colors in different ways. Here is what each one means and when to use it in your designs.

JSON is the language of modern APIs. Learn what it is, why formatting matters, and how to validate and beautify it in seconds.

Need to combine several PDFs into one document? Do it in seconds, right in your browser, without installing anything or uploading your files.