Fe/male Switch: Your Startup Facilitator & Incubator for Women

Top 10 Open Source Alternatives to GrammarlyGO in 2025: A Comprehensive Comparison

As GrammarlyGO continues to dominate the AI writing assistant market, 2025 has brought forth a wave of powerful open-source alternatives. Whether you're looking for specialized tools, better customization, or enhanced privacy, this article explores the top 10 open-source alternatives to GrammarlyGO, comparing them on key data points like features, customization, AI capabilities, and platform support.

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1. LanguageTool

Website: LanguageTool
Features: Grammar, style, and spell checking, multilingual support (25+ languages), integration with various platforms, including web browsers, LibreOffice, Google Docs, and more. It also offers a sentence rephraser.
Open Source: Fully open-source with a large and active community.
Customization: Allows users to create custom dictionaries and style guides.
Accuracy: Ranked highly for error detection, finding 19 out of 20 errors in a test document.
API: Provides an API for developers to integrate its functionality into other applications.
Source: [2], [3], [4], [7], [13], [22], [26], [30], [38], [42]

2. Writing Tools (theJayTea/WritingTools)

Website: Writing Tools
Features: Leverages AI LLMs for enhanced writing, system-wide support with a hotkey.
Open Source: Completely free and open source.
Customization: Users can configure the LLM provider, model, and endpoint.
Platforms: Works on Windows, Linux, and macOS.
AI Powered: Utilizes AI for suggestions.
Source: [20]

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3. Scramble (Chrome Extension)

Website: Search for "Scramble chrome extension" on GitHub
Features: AI-powered writing enhancement in-browser.
Open Source: The project is open-source.
Customizable: Users can configure the LLM provider, model, and endpoint.
Platform: Chrome extension.
LLM Based: Leverages Large Language Models (LLMs).
Source: [6]

4. After the Deadline

Website: Often available as a plugin
Features: Contextual spelling checks, grammar and style checking, available as a plugin for various platforms.
Open Source: Has open-source technology.
AI Powered: Utilizes artificial intelligence and natural language processing.
Platforms: Can be used on WordPress and as a plugin/add-on for different platforms.
Free: Available for free.
Source: [9]

5. Grammalecte

Website: Search on GitHub or other open-source repositories
Features: Grammar and spell checking for French, dictionaries, verb conjugator, automated text formatting.
Open Source: Is an open-source program.
Language: Specifically designed for French.
Spellcheck: Features four dictionaries for spellchecking.
Other Tools: Includes verb conjugation and automated text formatting tools.
Source: [43]

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6. UniJump

Website: Search on GitHub or other open-source repositories
Features: Enables quick access to ChatGPT for answers and writing inspiration.
Open Source: 100% free and open source.
Accessibility: Accessible from any website.
Security: Focuses on user security.
Free: Completely free to use.
Source: [25]

7. Notepad++

Website: Notepad++
Features: Primarily a text editor, but extensible with plugins for basic spell checking.
Open Source: Free and open-source (GNU GPL license).
Customization: Supports macros and plugins to extend functionality.
Lightweight: Known for its simplicity and speed.
Coding Support: Features syntax highlighting and auto-completion for coding.
Source: [8], [10], [27]

8. Flyspell (Emacs Plugin)

Website: Typically accessed within the Emacs text editor.
Features: Real-time spell checks, underlines misspelled words.
Open Source: Emacs is open source.
Integration: Integrates with the Emacs text editor.
Customizable: Has options for autocorrection.
Real-time: Provides on-the-fly spell checks.
Source: [38]

9. LibreOffice (Writer)

Website: LibreOffice
Features: Standard spell check and grammar tools, document creation, free.
Open Source: Free and open source.
Full Suite: Part of a complete office suite (word processor, spreadsheet, etc.).
Multilingual: Supports multiple languages.
Widely Used: A popular alternative to Microsoft Office.
Source: [8]

10. ZeroGPT Grammar and Spell Checker

Website: ZeroGPT Grammar and Spell Checker
Features: Identifies errors in grammar, spelling, and punctuation.
Open Source: It is not explicitly described as open-source, but is free to use.
AI Powered: It is an AI-powered tool.
Free: The grammar and spell checker are free.
Accessibility: Easy to use to refine English writing.
Source: [28]

This list provides a starting point for exploring open-source alternatives to GrammarlyGO. Test these tools to find what best suits your specific writing needs.

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FAQ

1. What is LanguageTool, and how does it compare to Grammarly?

LanguageTool is an open-source grammar, style, and spell checker that offers multilingual support, high accuracy, customization options, and an API for integration into other applications. Learn more about LanguageTool

2. What platforms does Writing Tools (theJayTea/WritingTools) support?

Writing Tools supports Windows, Linux, and macOS, offering system-wide AI writing assistance with a configurable AI model. Explore Writing Tools

3. How does Scramble enhance writing within the browser?

Scramble is an open-source Chrome extension that uses AI to enhance writing directly in the browser, allowing customization of LLM providers and models. Discover Scramble on GitHub

4. What features does After the Deadline offer?

After the Deadline is an open-source grammar checker using AI and natural language processing, available as a plugin for various platforms.

5. Is there an open-source grammar checker specifically for the French language?

Yes, Grammalecte is an open-source French grammar checker that includes grammar and spell checking, verb conjugation, and automated text formatting tools. Learn more about Grammalecte

6. What is UniJump, and what does it offer?

UniJump is an open-source tool that provides quick access to ChatGPT from any website without leaving it, focusing on user security and accessibility. Discover UniJump on GitHub

7. Can Notepad++ be used for grammar checking?

While Notepad++ is primarily a text editor, it can be extended with plugins for basic spell checking and other functionalities. Explore Notepad++

8. How does Flyspell integrate with Emacs?

Flyspell is a minor mode in Emacs that provides real-time spell checking, underlining misspelled words and offering customization options.

9. What writing tools does LibreOffice Writer offer?

LibreOffice Writer, part of the free and open-source LibreOffice suite, includes standard spell and grammar checking tools and supports multiple languages. Learn more about LibreOffice

10. What is ZeroGPT Grammar and Spell Checker?

ZeroGPT offers a free AI-powered grammar and spell checker to identify errors in grammar, spelling, and punctuation. Explore ZeroGPT

About the Author

Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.

Violetta is a true multiple specialist who has built expertise in Linguistics, Education, Business Management, Blockchain, Entrepreneurship, Intellectual Property, Game Design, AI, SEO, Digital Marketing, cyber security and zero code automations. Her extensive educational journey includes a Master of Arts in Linguistics and Education, an Advanced Master in Linguistics from Belgium (2006-2007), an MBA from Blekinge Institute of Technology in Sweden (2006-2008), and an Erasmus Mundus joint program European Master of Higher Education from universities in Norway, Finland, and Portugal (2009).

She is the founder of Fe/male Switch, a startup game that encourages women to enter STEM fields, and also leads CADChain, and multiple other projects like the Directory of 1,000 Startup Cities with a proprietary MeanCEO Index that ranks cities for female entrepreneurs. Violetta created the "gamepreneurship" methodology, which forms the scientific basis of her startup game. She also builds a lot of SEO tools for startups. Her achievements include being named one of the top 100 women in Europe by EU Startups in 2022 and being nominated for Impact Person of the year at the Dutch Blockchain Week. She is an author with Sifted and a speaker at different Universities. Recently she published a book on Startup Idea Validation the right way: from zero to first customers and beyond and launched a Directory of 1,500+ websites for startups to list themselves in order to gain traction and build backlinks.

For the past several years Violetta has been living between the Netherlands and Malta, while also regularly traveling to different destinations around the globe, usually due to her entrepreneurial activities. This has led her to start writing about different locations and amenities from the POV of an entrepreneur. Here’s her recent article about the best hotels in Italy to work from.

About the Publication

Fe/male Switch is an innovative startup platform designed to empower women entrepreneurs through an immersive, game-like experience. Founded in 2020 during the pandemic "without any funding and without any code," this non-profit initiative has evolved into a comprehensive educational tool for aspiring female entrepreneurs.The platform was co-founded by Violetta Shishkina-Bonenkamp, who serves as CEO and one of the lead authors of the Startup News branch.

Mission and Purpose

Fe/male Switch Foundation was created to address the gender gap in the tech and entrepreneurship space. The platform aims to skill-up future female tech leaders and empower them to create resilient and innovative tech startups through what they call "gamepreneurship". By putting players in a virtual startup village where they must survive and thrive, the startup game allows women to test their entrepreneurial abilities without financial risk.

Key Features

The platform offers a unique blend of news, resources,learning, networking, and practical application within a supportive, female-focused environment:

Skill Lab: Micro-modules covering essential startup skills
Virtual Startup Building: Create or join startups and tackle real-world challenges
AI Co-founder (PlayPal): Guides users through the startup process
SANDBOX: A testing environment for idea validation before launch
Wellness Integration: Virtual activities to balance work and self-care
Marketplace: Buy or sell expert sessions and tutorials

Impact and Growth

Since its inception, Fe/male Switch has shown impressive growth:

3,000+ female entrepreneurs in the community
100+ startup tools built
5,000+ pieces of articles and news written

Partnerships

Fe/male Switch has formed strategic partnerships to enhance its offerings. In January 2022, it teamed up with global website builder Tilda to provide free access to website building tools and mentorship services for Fe/male Switch participants.

Recognition

Fe/male Switch has received media attention for its innovative approach to closing the gender gap in tech entrepreneurship. The platform has been featured in various publications highlighting its unique "play to learn and earn" model.

Violetta Bonenkamp

2025-08-14 08:57 Top Alternatives