OpenThesaurus
A libre, self-hostable German thesaurus for synonyms and word associations.
- Daten: Self-hosted
- DSGVO-nativ
- EU-eigen
- Selbst hostbar
- Open Source
OpenThesaurus is a free, open-source German thesaurus providing synonym lookup and word associations. Developed in Potsdam by Daniel Naber and maintained under GNU AGPL, it is GDPR-compliant, downloadable in multiple formats, and embedded in LibreOffice/OpenOffice by default. Users can self-host the database or access it via a rate-limited public API.
OpenThesaurus is a free, open-source German thesaurus providing synonym lookup and word associations. Developed in Potsdam by Daniel Naber and maintained under GNU AGPL, it is GDPR-compliant, downloadable in multiple formats, and embedded in LibreOffice/OpenOffice by default. Users can self-host the database or access it via a rate-limited public API.
Highlights
- ✓Completely free and open-source (AGPL + CC-BY-SA/LGPL dual licensing)
- ✓Built-in to LibreOffice/OpenOffice, integrated into 1000+ applications
- ✓Downloadable data in multiple formats (text, MySQL, .oxt extension)
- ✓GDPR-compliant with explicit data protection safeguards and 7-day IP retention limits
- ✓Comprehensive API with JSON/XML support and 60 req/min rate limits
- Datenstandort
- Self-hosted
- Preis
- Kostenlos
- EU-eigen
- Ja
- Selbst hostbar
- Ja
Gut für
- LibreOffice/OpenOffice users integrating synonym lookup for German document editing without external dependencies
- NLP developers and linguists building German language processing pipelines with self-hosted, redistributable synonym data
- Enterprise German language services (translation, editing) needing GDPR-safe, no-cost thesaurus integrated into workflows