Frog
Memory-based NLP suite for Dutch: PoS tagging, lemmatization, parsing, and more.
- Status
- Generally available
- Last checked
- Checked · Oct 16, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Frog is a comprehensive memory-based natural language processing library specifically designed for the Dutch language. It offers functionalities such as part-of-speech tagging, lemmatization, dependency parsing, named entity recognition, shallow parsing, and morphological analysis.
Frog stands out as a specialized tool for the Dutch language, offering a wide range of NLP functionalities in one package, making it particularly useful for researchers and developers focused on Dutch text analysis.
When it fits — and when it doesn’t
A good fit for
Researchers and developers working with Dutch language data who need a comprehensive NLP suite.
Projects requiring detailed linguistic analysis of Dutch text.
Look elsewhere if
Applications that require real-time processing or very large datasets, as it may be limited by local resources.
Users needing support for languages other than Dutch.
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited language support beyond Dutch
Frog is specifically designed for the Dutch language and lacks robust support for other languages.
- 02
Complex setup process
Setting up Frog requires a detailed configuration, including downloading specific models and dependencies which can be time-consuming.
- 03
Small community and limited third-party integrations
Due to its niche focus on Dutch NLP, the ecosystem around Frog is relatively small compared to more general-purpose NLP libraries like spaCy or NLTK.
- 04
Performance issues with large datasets
Processing large volumes of text can be slow and resource-intensive, leading to potential bottlenecks in production environments.
What it does well
Comprehensive NLP suite for Dutch
Part-of-speech tagging and lemmatization
Dependency parsing and named entity recognition
Morphological analysis
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up Frog
Setup steps, common gotchas and what to check after 30 days.
Get the badge
A small badge for Frog’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.
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