Free Tools for Students & Researchers

Combine multiple PDFs, extract specific pages, reduce file size, rotate pages, add watermarks, and extract text from scanned pages.

Write formatted notes with live mathematical formulas ($E=mc^2$), flowcharts, and Draw.io diagrams. Export directly to clean printable PDF.

Convert Word documents (.docx) into clean Markdown, and easily turn simple text outlines into native PowerPoint (.pptx) presentation decks.

Live LaTeX math equation preview with symbol cheatsheets and automated APA & IEEE citation generators for academic papers.

Analyze essays and drafts: Check readability grade scores, vocabulary richness, top keywords, and estimated AI token lengths.

Interactive truth table solver for digital circuits. Click cells to toggle 0, 1, and Don't Care (X) to generate simplified Boolean equations.

Convert numbers across bases and see the exact sign, exponent, and mantissa bit breakdowns of 32-bit and 64-bit floating-point numbers.

Calculate determinants, inverse matrices, matrix multiplication, rank, and trace with clear step-by-step mathematical explanations.

Synthesize sound waves and adjust harmonic frequencies in real time to observe the live Fast Fourier Transform (FFT) frequency spectrum.

Convert units across pressure, energy, temperature, and data storage, plus generate complete Boolean algebra truth tables.

Chat with advanced AI models right in your browser. Ask questions about math, code, engineering concepts, or get explanations for your homework with zero setup.

Inspect generated assembly in real-time across GCC, Clang, MSVC, and Rust with full compiler optimization flags (-O3).

See C++ code through compiler eyes: expands template instantiations, lambda closures, structured bindings, and move semantics.

Interactive deep dive into how CPUs, system calls, virtual memory, and operating systems execute your code on silicon.

Compute symbolic integrals, solve differential equations, calculate eigenvalues, and query scientific constants.

Interactive 3D geometry engine for visualizing surfaces, vector cross products, planes, and parametric curves.

Search engine tuned for developers with technical answers, source links, and code snippets for software libraries.