Free Tools for
Students & Developers
A growing collection of calculators, decoders, and converters — built to be fast, free, and no-nonsense. No sign-up, no ads, no fluff.
CGPA Calculator
Calculate your Cumulative Grade Point Average instantly using the 10-point scale. Add subjects, assign credits and grades — results update in real time.
Percentage Calculator
Convert CGPA to percentage and vice versa. Supports multiple university formulas including the standard ×9.5 method and custom multipliers.
BMI Calculator
Calculate Body Mass Index using metric or imperial units. Includes WHO classification bands and healthy weight range for your height.
Age Calculator
Find your exact age in years, months, days, hours, and minutes. Also calculates days until your next birthday and day of the week you were born.
Base64 Encoder / Decoder
Encode plain text or binary data to Base64 and decode it back. Useful for API payloads, JWT inspection, and email attachment encoding.
Word & Character Counter
Count words, characters, sentences, and paragraphs in any text. Also estimates reading time and speaking time at average pace.
Get in Touch
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All written content on this site is AI-generated and reviewed by me. Tool logic and code are human-authored.