Slemma
Slemma is a free, open-source alternative to Grammarly for grammar and spelling correction. It uses natural language processing to analyze your writing for typographical and grammatical errors, highlighting issues and suggesting fixes.
grammar
spelling
correction
writing
editing
productivity
Slemma: Free, Open-Source Alternative to Grammarly
Slemma is a free, open-source alternative to Grammarly for grammar and spelling correction. It uses natural language processing to analyze your writing for typographical and grammatical errors, highlighting issues and suggesting fixes.
What is Slemma?
Slemma is an open-source alternative to Grammarly that provides AI-powered grammar and spelling correction for your writing.
With Slemma, you can paste in any text and it will analyze it using natural language processing to find typos, grammatical mistakes, and other writing issues. As you type or edit text, Slemma underlines potential errors and mistakes in red and offers short descriptions and suggestions for fixes.
Rather than simply flag potential issues, Slemma aims to explain each grammar rule breach so you can understand why something should be changed. The tool provides examples and teaching opportunities as part of the editing experience.
Slemma uses trained AI models to recognize errors contextually and suggest changes tailored to the exact sentence or phrasing. The correction algorithms power basic proofreading up to more stylistic improvements to polish and refine text.
As an open-source project, Slemma is completely free to use. It also avoids collecting or storing user data. The tool focuses entirely on analyzing writing and providing correction help rather than tracking usage metrics or usage patterns. This makes Slemma a more ethical, private alternative to commercial options like Grammarly.
Slemma Features
Features
- Grammar and spelling correction
- Contextual analysis for word choice and style
- Highlighting of errors and issues
- Suggested fixes and improvements
- Support for multiple languages
- Browser extension and web app
- Open-source and free
Pricing
- Free
- Open Source
Pros
Free and open source
Accurate grammar and spell checking
Helpful suggestions for improvements
Lightweight and fast
Available as browser extension
Works offline
Cons
Limited style and word choice analysis
Less extensive error explanations
Fewer language options
No mobile app
Less polished UI
The Best Slemma Alternatives
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