Best Free Online Tools for Students
A curated list of free, browser-based tools that help with GPA calculations, essay writing, citations, time management, and academic conversions. All tools are completely free, require no sign-up, and run entirely in your browser.
Grade & GPA Calculators
GPA & CGPA Calculator
Calculate semester GPA and cumulative CGPA across multiple semesters on 4.0, 5.0, and 7.0 scales.
Final Grade Calculator
Find out exactly what score you need on your final exam to hit your target grade.
Weighted Grade Calculator
Calculate your overall course grade from weighted assessments.
Percentage to GPA
Convert any percentage score to a GPA on the 4.0 or 5.0 scale.
Writing & Text Tools
Word Counter
Count words, characters, sentences, paragraphs, and keyword density in real time.
Reading Time Calculator
Estimate reading, speaking, and teaching time for any text.
Case Converter
Convert text to uppercase, lowercase, title case, sentence case, and 10+ other formats.
Passive Voice Checker
Detect passive voice constructions in your writing.
Essay & Readability Tools
Essay Feedback Tool
Get automated feedback on word count, sentence length, vocabulary diversity, readability, and passive voice.
Readability Checker
Check Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, and SMOG scores.
Pomodoro Timer
Use the Pomodoro technique to study in focused 25-minute sessions with regular breaks.
Deadline Calculator
Calculate exactly how much time you have until any deadline.
Citation Tools
Academic Converters
Words to Pages
See how many pages your word count will fill at different fonts, sizes, and spacings.
Words to Minutes
Convert a word count into estimated speaking or reading time.
CGPA to Percentage
Convert CGPA on 4.0, 5.0, or 10.0 scales to an equivalent percentage.
Number to Words
Convert any number to its written word form — useful for essays and legal documents.
Why These Tools?
Every tool listed here is free, requires no account, and processes all data locally in your browser — meaning your text, grades, and academic information are never sent to or stored on any server. All tools on Studylio are built specifically for students, researchers, teachers, and writers.