Small tools that just work, and hardware explained without the jargon.
Free browser-based utilities for everyday development work, plus plain-language breakdowns of the computer parts and terms people search for before buying a laptop or building a PC.
Tools
Developer tools
Five free tools that run in your browser: a JSON formatter, regex tester, Base64 encoder and decoder, JWT decoder and UUID generator.
Student tools
A free GPA calculator, plus the Punjab University merit calculator and COMSATS merit calculator.
Latest blogs
RAM vs ROM: what the difference actually means for you
A plain explanation of the two, without the textbook wording.
i5 vs i7: which processor is better?
Why a newer i5 can beat an older i7, and how to compare two laptops.
Dev Explained, beginner guides: JSON explained, Regex explained, Base64 explained, JWT explained and UUIDs and GUIDs explained.
Frequently asked questions
What is DevToolsKit Hub?
DevToolsKit Hub is a small collection of free browser-based tools, plus plain-language articles. The tools include developer utilities (JSON formatter, regex tester, Base64, JWT and UUID tools) and student calculators (GPA and university merit calculators). The articles explain hardware, programming basics and university admissions without jargon.
Do I need an account or to pay to use the tools?
No. Every tool on the site is free and works without signing up or creating an account.
Is the text I paste into the tools sent to a server?
The browser-based tools process what you type or paste locally in your browser and do not send it to a server. Each tool page repeats this where it applies.
Which tools are available right now?
Developer tools: JSON formatter, regex tester, Base64 encoder/decoder, JWT decoder and UUID generator. Student tools: a GPA calculator, plus merit calculators for Punjab University and COMSATS.