Language tools

Small tools for reading, vocabulary, and text work.

Choose a language, narrow by category, and open the tool you need.

Start here

Pick a language to see available tools. Some tools are early versions and may change quickly.

Showing tools for

Spanish

Español

Analyze

1 tool

Analyze

Text Difficulty Checker

Experimental tool

Estimate reading difficulty from syntax, lemma frequency, and vocabulary density.

English Русский Español Français Deutsch

Experiments

1 tool

Experiments

Vocabulary Size Estimator

Beta

Answer a few questions to get a rough estimate of your English vocabulary range.

English Русский Español Français Deutsch