🎓 Herramientas Gratis para Estudiantes
Herramientas esenciales gratuitas que todo estudiante necesita: calculadoras, conversores, herramientas de texto y ayudas de estudio. Sin descargas, sin anuncios molestos.
Students spend hours searching for reliable online tools. We've organized the best free tools for students in one place. Calculate your age, BMI, or loan payments. Convert units for science homework. Count words for essays. Generate Lorem Ipsum for design projects. Check your writing with case converters and text diff tools. All tools are free to use, work on any device, and require no registration. Bookmark this page for quick access whenever you need a homework helper or study tool.
Age Calculator
Calculate exact age in years, months, and days from any birth date. Shows total months, weeks, and days lived. Also calculates age on a specific future or past date.
Percentage Calculator
Calculate percentage of a number, percentage change between two values, and find the original number from a percentage. Three calculators in one, no confusing math required.
BMI Calculator
Calculate your Body Mass Index from height and weight. Shows your BMI number and weight category from underweight to obese. Supports both metric (kg/cm) and imperial (lbs/in) units.
Unit Converter
Convert between common units: length, weight, temperature, area, volume, speed, and time. Real-time conversion as you type. Covers metric and imperial with one-click unit swapping.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal. See all four bases at once when you type a number in any format. Includes hex color reference.
Roman Numeral Converter
Convert Roman numerals to numbers and numbers to Roman numerals. Handles values up to 3,999,999 with proper vinculum notation. Quick reference for dates and page numbers.
Word Counter
Count words, characters, sentences, and paragraphs in real time. Shows reading time and speaking time estimates. Copy-paste or type directly — no buttons to click, updates as you write.
Case Converter
Convert text to uppercase, lowercase, title case, sentence case, or toggle case. Handles bulk text with one click. Useful for fixing all-caps text, formatting headlines, or normalizing copy-pasted content.
Lorem Ipsum Generator
Generate placeholder text for mockups, wireframes, and design drafts. Choose paragraph count and length. Standard Lorem Ipsum with optional customization.
Text Diff Checker
Compare two pieces of text side by side and see exactly what changed. Highlights additions, deletions, and modifications. Drop in old and new versions to spot edits.
Loan Calculator
Calculate monthly loan payments including interest and principal. See full amortization schedule showing how much goes to interest vs principal each month. Adjust loan amount, rate, and term.
Mortgage Calculator
Estimate your monthly mortgage payment including principal, interest, property tax, and insurance. See total cost over the loan term and how extra payments shorten it.
Preguntas Frecuentes
What are the best free online tools for students?
Essential free tools for students include calculators (age, percentage, BMI, loan), unit converters for science and math homework, word counters for essays and assignments, text tools like case converters and diff checkers, and Lorem Ipsum generators for design and layout projects. All of these are available free on our site with no registration required.
Do these student tools work on mobile?
Yes — all our student tools are fully responsive and work on phones, tablets, and laptops. Use them in the classroom, library, or at home with any device.
Are these tools really free for students?
Yes, completely free. No registration, no credit card, no hidden fees. We support the site through non-intrusive advertising while keeping all tools accessible to students worldwide.