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Read stories, books, or webpages, translate the words you don't know, and we'll generate flashcards to help you remember.

Complete online math courses for test prep, tutoring, and homeschooling. Get the exact Math Help programs you need to conquer math and pursue your dreams.

Reverso's free online translation service that translates your texts between English and French, Spanish, Italian, German, Russian, Portuguese, Hebrew, Japanese, Arabic, Dutch, Polish, Romanian, Turkish.

The encyclopedia of natural numbers, random number generators, Roman numbers, prime numbers etc. All about natural numbers: basic and advanced mathematics, computing, codes and images, writing and naming in other languages, interesting data (numerology, history, culture, philosophy, biology, physics, chemistry, metaphysics, religion, distances, heights, times, crashed planes, games, ...)

The first complete language learning solution. We show you how to learn a new language from zero to fluency. Get started now.

Create, play and print beautiful sheet music with the world's most popular notation software

Learn languages smarter, not harder! Rated 4.9/5, LingoDeer teaches languages most effectively through fun lessons created by real teachers!

High precision scientific calculator with full support for physical units.

The largest language exchange app. Learn languages with native speakers, explore culture, and have fun practicing languages!

Download SciDAVis for free. SciDAVis is a user-friendly data analysis and visualization program primarily aimed at high-quality plotting of scientific data. It strives to combine an intuitive, easy-to-use graphical user interface with powerful features such as Python scriptability.

Solve definite and indefinite integrals (antiderivatives) using this free online calculator. Step-by-step solution and graphs included!

10,000 sentences: an Android app to help you learn new words in foreign languages - tkrajina/10000sentences

A free and open source software to solve partial differential equations (PDE) using the Finite Element Method (FEM)

Learn 180+ languages chatting with a character you design

Clozemaster is language learning gamification through mass exposure to vocabulary in context. Great post-Duolingo app and useful for language learners of all levels. Free to sign up and play!

A community for anybody interested in learning other languages. Whether you are just starting, a polyglot or a language nerd, this is the place for you!

A simple, immediate and fast unit converter!

Discover a new and fun way to learn English and other languages by filling in the lyrics of your favorite songs.

Approach Zero: A math-aware search engine.

Matrix addition, multiplication, inversion, determinant and rank calculation, transposing, bringing to diagonal, row echelon form, exponentiation, LU Decomposition, QR-decomposition, Singular Value Decomposition (SVD), solving of systems of linear equations with solution steps

Numbr is a smart calculator combined with a notepad. You can use notes with numbers alongside each other.

Just easily snip for a formula image or upload from local, you can quickly get the LaTeX expression for the mathematical formula! SimpleTex supports fast insertion of image/MathML/LaTeX and other formats to major document editing software, which could greatly boost the work efficiency. Best of all, SimpleTex is free and developed by college student!

Generate your next Twitter bio in seconds.

Download NoteTrainer PRO for free. Trains quickly score reading and piano playing (MIDI-keyboard) The main purpose of NoteTrainer PRO is developing the ability of quickly reading and playing notes "at sight." The program generates a random sequence of notes in the range selected by the user, and controls the speed and accuracy of their playing. Instead of random notes can be loaded not very complex melodies in MusicXML format and practice by studying them.

Canorus is a free cross-platform music score editor - canorusmusic/canorus

Create, compose, collaborate, play, and print your sheet music using the world's most simple and intuitive web-based music writing and composition software.

Code for the manim-generated scenes used in 3blue1brown videos - 3b1b/videos