VocabSieve is a desktop companion for Anki designed to help language learners build vocabulary through sentence mining.
It streamlines the process of collecting useful example sentences and turning them into study material, while keeping dictionaries, records, and learning data on your own machine.
This is free and open source software.
Key Features
- Helps create Anki cards quickly with word lookups, pronunciation, and frequency information.
- Supports a wide range of languages, with particular optimization for European languages.
- Uses lemmatization to reduce inflected forms to their base dictionary forms.
- Works in a local-first manner with downloaded resources and no central server requirement.
- Supports local resources including StarDict, Migaku, JSON, MDX, Lingvo (.dsl), CSV, frequency lists, and audio libraries.
- Includes a web reader for EPUB files with one-click lookups and Anki export.
- Integrates with KOReader and Kindle highlights for batch sentence mining from reading workflows.
- Tracks vocabulary progress locally and can analyse books to estimate reading difficulty.
Website: github.com/FreeLanguageTools/vocabsieve
Support:
Developer: FreeLanguageTools
License: GNU General Public License v3.0

VocabSieve is written in Python. Learn Python with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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