Prepare an assignment PDF
Combine chapters, shrink the file for upload, then confirm the word count.
Free Online Tools for Students
Tareas, notas y plazos - resueltos.
Todo lo que un estudiante necesita durante el semestre: cálculo de notas, limpieza de PDF para tareas, conteo de palabras para ensayos, conversiones de unidades para deberes y un temporizador para terminarlo de verdad.
Featured tools
Start with these - they cover the most common jobs for this audience.
Combinar PDF
Combine multiple PDF files into one
Compresor de PDF
Shrink PDFs up to 25 MB in your browser. Save 94%+ on scans without blurring text
Contador de Palabras
Count words, characters and sentences
Calculadora de Promedio (GPA)
Work out your GPA on the 4.0 scale from letter grades or percentage marks, with credit hours
Compresor de Imágenes
Compress images without losing quality
Temporizador Pomodoro
Focus timer with work/break cycles and desktop notifications
Dividir PDF
Split PDF into separate pages
Creador de Horarios
Free online schedule maker - drag-and-drop weekly planner, export PNG/PDF
Study & documents
Clean up assignment PDFs and keep files under upload limits.
Combinar PDF
Combine multiple PDF files into one
Dividir PDF
Split PDF into separate pages
Compresor de PDF
Shrink PDFs up to 25 MB in your browser. Save 94%+ on scans without blurring text
PDF a Imágenes
Convert PDF pages to images
PDF a Word
Convert PDF to editable Word with accurate layout, headings and tables
Contador de Palabras
Count words, characters and sentences
Writing & text
Essay length, case fixes and quick text cleanup before you submit.
Contador de Palabras
Count words, characters and sentences
Contador de Palabras de Ensayos
Count words and see how many double-spaced pages your essay fills
Convertidor de Mayúsculas/Minúsculas
Convert text between cases
Buscar y Reemplazar
Find and replace text in bulk
Calculadora de Tiempo de Lectura
Estimate reading time and detailed text statistics
Images
Shrink photos for LMS uploads and slide decks.
Compresor de Imágenes
Compress images without losing quality
Redimensionador de Imágenes
Resize images to any dimension
Herramienta de Recorte de Imágenes
Crop images with fixed or custom aspect ratios
Convertidor de Formatos
Convert images between formats in your browser - quality and upscale options included
Redimensionar Imagen a KB
Compress an image to an exact target size - 20KB, 50KB, 100KB or any value
Calculators & focus
Grades, unit homework and a timer when you need to sit down and work.
Calculadora de Promedio (GPA)
Work out your GPA on the 4.0 scale from letter grades or percentage marks, with credit hours
Convertidor de Unidades
Convert between various units
Calculadora de Porcentajes
Work out what X% of Y is, percentage change, increase or decrease - plus split profit between partners
Temporizador Pomodoro
Focus timer with work/break cycles and desktop notifications
Creador de Horarios
Free online schedule maker - drag-and-drop weekly planner, export PNG/PDF
How ToolBox helps
Todo lo que un estudiante necesita durante el semestre: cálculo de notas, limpieza de PDF para tareas, conteo de palabras para ensayos, conversiones de unidades para deberes y un temporizador para terminarlo de verdad.
Popular workflows
Prep images for a slide deck
Resize for the slide, compress so the file emails cleanly, convert if the LMS is picky.
Plan a study block
Map the week, then run a focus session when it is time to work.
Related categories
Helpful guides
Frequently asked questions
Most students need PDF merge/compress, a word counter, image resize/compress for LMS uploads, a GPA calculator and a simple focus timer. This pack groups those ToolBox tools in one place.
Yes. Open the tool in your browser, run the job, and download the result. Many student tools process files on your device; server tools are labelled on the tool page.
Merge PDF combines chapters, Split PDF pulls out pages, PDF Compressor shrinks uploads, and PDF to Word / PDF to Images help when you need another format.
The pack page and the listed tools are free to open. Standard jobs do not require an account. Check each tool page for any size or daily limits.