Free & privacy-friendly tools for daily academic work
This collection of privacy-friendly free tools are designed for daily academic work: Data processing happens locally in your browser. This means data is never sent to any cloud server, no AI is ever involved, and no login or sign-up is necessary.
PDF editing tools
All tools run locally in your browser, so your files stay on your device and under your control. No uploads, no AI, no cloud processing, and no unnecessary data collection – just fast, private PDF editing for work, study, and everyday use.
Compress PDF Files
Reduce file size without sacrificing readability. Ideal for emailing documents, uploading files online, or saving storage space.
Merge PDF Files
Combine multiple PDF files into a single document in seconds. Perfect for reports, contracts, applications, and scanned pages.
Split a PDF File
Divide one PDF into smaller files by page range. Useful when you only need to share, store, or review specific sections.
Remove page(s) from a PDF File
Delete unwanted pages quickly and cleanly. Great for removing blank pages, duplicates, or outdated content.
Extract page(s) from a PDF File
Create a new PDF from selected pages only. A simple way to save or send just the pages that matter.
Productivity tools
These tools help streamline common research tasks, from creating citations and study aids to improving focus and saving time during writing and review.
Citation Generator
Generate properly formatted citations in popular academic styles such as APA, MLA, Chicago, and more. A quick way to build accurate references for essays, papers, and reports.
QR-Code Generator
Turn links or contact details into clean QR codes that are easy to share in print or digital materials. Useful for posters, handouts, lab pages, and event materials.
Pomodoro Timer
Stay focused with timed work sessions and short breaks based on the Pomodoro method. Great for reading, writing, revising, and maintaining momentum during long study sessions.
Visual tools
These tools are ideal for creating clear, engaging visuals for presentations, articles, posters, teaching materials, and research communication.
Research Poster Creator
Design professional academic posters with structured sections for titles, authors, methods, results, and conclusions. Built to help you present research clearly and effectively in conferences and events.
Word Cloud Generator
Create word clouds from text to highlight the most frequent or important terms in a document. Useful for presentations, classroom materials, text analysis, and visual summaries.
Statistical tools
These tools support common statistical tasks in research, from exploring relationships in data to estimating effects, building models, and planning studies.
Correlation Coefficient Calculator
Measure the strength and direction of relationships between variables with clear, easy-to-read results. Useful for exploratory analysis, hypothesis testing, and reporting findings.
Effect Size Calculator (Cohen's d)
Calculate effect size quickly to understand the practical magnitude of differences between groups. Ideal for research reports, study interpretation, and comparing results beyond p-values.
Linear Regression Calculator
Analyze how variables predict an outcome using straightforward regression outputs. Helpful for modeling trends, testing hypotheses, and interpreting statistical relationships.
Sample size calculator
Estimate the sample size needed for your study based on key statistical inputs. A practical tool for planning experiments, surveys, and research designs with adequate power.