Alternatives · 2026
Best Truth Keeper Alternatives in 2026
24 alternatives · 22 with a free plan · Updated
What are the best Truth Keeper alternatives?
The best Truth Keeper alternatives for AI Checker in 2026 are Second Opinion Extension (free browser extension, free), 13 Best AI Detectors 2025 (evaluates 13 AI content detectors, free) and Nightfall DLP for ChatGPT (browser extension, free). 22 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than Truth Keeper? Below are 24 alternatives in AI Checker, AI Content Detector and Large Language Models (LLMs), all closely matched, ranked by how much they overlap with Truth Keeper. Truth Keeper itself is free. Each entry shows what the tool does, what it shares with Truth Keeper, its key features and pricing.
What is Truth Keeper?
Truth Keeper is a browser extension designed to help you spot misinformation and assess the accuracy of online content. It uses advanced language models to analyze text and provide an accuracy percentage, giving you context about what you're reading.
- Pricing
- Free
Key features of Truth Keeper
- Helps users identify misinformation
- Provides an accuracy percentage for context
- Easy to use as an extension
- Utilizes advanced LLMs for analysis
- Accuracy depends on the LLM's capabilities
Truth Keeper alternatives compared
| Tool | Pricing | Shared with Truth Keeper | Match |
|---|---|---|---|
| Truth Keeper | Free | — | Original |
| Second Opinion Extension | Free | AI Checker, Large Language Models (LLMs), Other | Strong match |
| 13 Best AI Detectors 2025 | Free | AI Checker, AI Content Detector, Other | Strong match |
| Nightfall DLP for ChatGPT | Free | AI Content Detector, Large Language Models (LLMs), Other | Strong match |
| Copyleaks | Free | AI Content Detector, Large Language Models (LLMs), Other | Strong match |
| Better World 24 | Free | AI Content Detector, Large Language Models (LLMs), Other | Strong match |
Top 24 alternatives to Truth Keeper
- #1
Second Opinion Extension is a free browser extension that fact-checks selected web text with Grok AI to flag inaccuracies and bias.
In common with Truth Keeper: AI Checker, Large Language Models (LLMs), Other
- Easy to use with a simple right-click action
- Provides quick fact-checks
- Supports multiple browsers
Pricing: free, same as Truth Keeper
- #2
Evaluates 13 AI content detectors, including Originality.ai, GPTZero and Turnitin, for accuracy in spotting AI-generated text in 2025.
In common with Truth Keeper: AI Checker, AI Content Detector, Other
- Evaluation of 13 AI detectors for accuracy in identifying AI-generated content in 2025
Pricing: free, same as Truth Keeper
- #3
Browser extension that detects and blocks sensitive data before it enters ChatGPT prompts and responses.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- It helps prevent data leaks
Pricing: free, same as Truth Keeper
- #4
Copyleaks is a plagiarism checker and AI content detector that scans text in multiple languages and connects to other platforms through an API.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- Comprehensive detection of plagiarism and AI-generated content
- Support for multiple languages
- Integration with various platforms via API and LMS
Pricing: free, same as Truth Keeper
- #5
An AI tool that helps users spot propaganda and misinformation while building critical thinking skills.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- Empowers users to identify and understand propaganda
- Enhances critical thinking skills
- Maintains user privacy through offline operation
Pricing: free, same as Truth Keeper
- #6
Open-source tool that lets AI teams search, measure, and edit training datasets for large language models.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- It allows users to search
Pricing: free, same as Truth Keeper
- #7
AI tool that analyzes online content and rates its political bias on a visual scale.
In common with Truth Keeper: AI Checker, AI Content Detector
- Helps users understand the political bias of online content
- Uses machine learning for bias detection
- Presents bias on an easy-to-understand scale
Pricing: free, same as Truth Keeper
- #8
Free web-based AI content detector that gives an AI probability percentage and plagiarism check for ChatGPT, Gemini and Claude text.
In common with Truth Keeper: AI Checker, AI Content Detector
- It uses advanced algorithms and APIs to provide an AI probability score percentage
Pricing: free, same as Truth Keeper
- #9
AI security software with LLM firewalls and AI governance tools for controlling how businesses use large language models.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
Pricing: freemium (free plan + paid upgrades); Truth Keeper is free
- #10A
Check whether text is human-written or AI-generated by analyzing the AI content percentage.
In common with Truth Keeper: AI Checker, AI Content Detector
Pricing: paid, while Truth Keeper is free
- #11
Chrome extension that analyzes YouTube video transcripts to flag potentially misleading claims and statements.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- Helps identify potential manipulations and lies in YouTube videos
- Provides detailed information about statements made in videos
- Easy to use with a simple Chrome extension installation
Pricing: free, same as Truth Keeper
- #12
Winston AI is an AI content detector and plagiarism checker that estimates whether text or images were generated by AI.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- Free 2
Pricing: free, same as Truth Keeper
- #13
AI platform that flags potentially defamatory content in real-time to help publishers reduce legal risk.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- AI platform to minimize defamation risk by flagging high-risk content in real-time
Pricing: free, same as Truth Keeper
- #14
Detects AI-generated content to help you verify whether text was written by humans or artificial intelligence.
In common with Truth Keeper: AI Checker, AI Content Detector
- Helps maintain content integrity
- Easy to use with just a few clicks
- Quickly identifies AI-generated content
Pricing: free, same as Truth Keeper
- #15
Chrome extension that scans webpages to identify content generated by AI models.
In common with Truth Keeper: AI Checker, AI Content Detector
- Easy to use with Chrome integration
- Detects content from multiple AI models
- Offers both manual and automatic scanning
Pricing: free, same as Truth Keeper
- #16
GPTZero is an AI detector that scans text to flag content likely written by models like ChatGPT, with options for individuals and teams.
In common with Truth Keeper: AI Checker, AI Content Detector
- AI detector for identifying text generated by AI models like ChatGPT
Pricing: paid, while Truth Keeper is free
- #17
Analyzes text to determine whether it was written by AI models like ChatGPT, Bard, or GPT-4.
In common with Truth Keeper: AI Checker, AI Content Detector
- It focuses on analyzing the structure
Pricing: free, same as Truth Keeper
- #18
mxHERO is an AI email management tool that helps teams improve email security, governance, and storage, with automation for productivity and reduced data sprawl.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- Enhanced email security and data protection
- Improved email governance and compliance
- Increased productivity through automation
Pricing: free, same as Truth Keeper
- #19
AI marketing platform combining content creation, design, video editing, and social media management in one workspace.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- All-in-one AI marketing platform for content creation and social media management
Pricing: free, same as Truth Keeper
- #20
BioBrain is a market research operations platform that automates data collection, analysis and reporting so research projects move faster.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- Accelerated research timelines (4X faster)
- Improved data quality through automation and AI
- Reduced manual errors
Pricing: free, same as Truth Keeper
- #21
Deepfake detection and media authentication tool that pairs AI analysis with blockchain to check multimedia files and documents.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- AI and blockchain-based platform for deepfake detection and media authentication
Pricing: free, same as Truth Keeper
- #22
DataVLab is an AI data labeling service offering image, video, 3D and text annotation for training machine learning models.
In common with Truth Keeper: Large Language Models (LLMs), Other
Pricing: free, same as Truth Keeper
- #23
Browser extension that summarizes and mind-maps web content using AI models like DeepSeek or OpenAI.
In common with Truth Keeper: Large Language Models (LLMs), Other
- Easy access to summarization and mind mapping tools within the browser
- Supports configuration with different AI services like DeepSeek and OpenAI
- Enhances productivity by quickly processing web content
Pricing: free, same as Truth Keeper
- #24
AIHumanizer is an AI paraphrasing tool that rewrites AI-generated text into natural, human-style writing for publishers and agencies.
In common with Truth Keeper: AI Content Detector, Large Language Models (LLMs), Other
- AI Humanizer is an advanced rewriting tool that instantly converts AI text to human text
Pricing: free, same as Truth Keeper
How we picked these Truth Keeper alternatives
We rank tools by how closely they match Truth Keeper: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to Truth Keeper in 2026?
The closest alternatives to Truth Keeper are Second Opinion Extension, 13 Best AI Detectors 2025, Nightfall DLP for ChatGPT, Copyleaks and Better World 24. They are ranked by how many categories and tags they share with Truth Keeper and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to Truth Keeper?
Second Opinion Extension is the closest match because it shares AI Checker, Large Language Models (LLMs) and Other with Truth Keeper. It is free.
Are there free alternatives to Truth Keeper?
Yes. 22 of the 24 alternatives have a free or freemium plan, including Second Opinion Extension (free), 13 Best AI Detectors 2025 (free), Nightfall DLP for ChatGPT (free), Copyleaks (free) and Better World 24 (free). Truth Keeper is free.
Which Truth Keeper alternatives are paid or enterprise tools?
AI-Detector (paid) and GPTZero (paid) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does Truth Keeper compare to Second Opinion Extension?
Second Opinion Extension overlaps with Truth Keeper in AI Checker, Large Language Models (LLMs) and Other. Its listed features include easy to use with a simple right-click action, provides quick fact-checks and supports multiple browsers. Pricing: free, same as Truth Keeper. Open the side-by-side compare page for a full breakdown.
What category is Truth Keeper in?
Truth Keeper is listed under AI Checker on SoftwareVital. Browse that category to see more tools in the same group.