​Top 5 Free Alternatives to ZeroGPT

AI detector tools are very unreliable. Having to use them quite a bit for my university has shown me that they don't always give the same results, and leave me confused more often than not. ZeroGPT is a popular tool, but when using it for longer paragraphs, it becomes virtually useless. I tried out a lot of free alternatives of ZeroGPT, and have detailed what each of them does best and which one makes

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your work easier instead of harder, so you won't face the same challenges I had to face, in finding ZeroGPT free alternatives.

What is ZeroGPT?

ZeroGPT is a tool designed to detect AI-generated content. It’s built with advanced algorithms that analyze text and provide an estimate on whether the text was written by a human or an AI. It works by scanning patterns, structure, word choice, and predictability. Its simplicity and accessibility made it a popular go-to, especially for educators and professionals looking to identify AI-influenced writing.

Features:

• Analyzes text to detect whether it was generated by AI (like ChatGPT, GPT-4, etc.)

• Highlights potentially AI-written sentences

• Gives a percentage score of AI probability

• Supports document uploads and multiple languages

Benefits:

• Free basic use

• Easy-to-use interface

• Good for quick checks

Limitations:

• The free version often lacks accuracy and depth

• Results can be inconsistent for nuanced or edited AI text

• No detailed explanation of results

• Limited analysis per day for free users

ZeroGPT is a good option, but it’s not always reliable and useful. Some alternatives can be really confusing, so I've narrowed down the best ones for you, explaining how to use them and how they are better than the others.

Free Alternatives of ZeroGPT

If you’ve used ZeroGPT before, you probably already know it’s hit or miss. Sometimes it works fine, but other times the results feel random or overly sensitive. Looking at this, I tried out some ZeroGPT alternatives that actually make the work easier and more reliable. Some were better than I expected, some were not. I have detailed everything I found below, so that you won’t have to waste so much of your time doing the same.

Originality.ai

Originality.ai isn’t just about AI detection, it’s more of a complete toolkit for anyone that’s working with content. It offers multiple pricing plans, so you can pick what fits your needs and budget best. What makes it especially useful is the built-in plagiarism detector and fact checker, which help you catch more than just AI-written text. The interface is clean, the results are reliable, and everything runs smoothly without having to learn anything. It’s a really good alternative to ZeroGPT.

Features:

• Analyzes text to detect whether it was generated by AI

• Highlights potentially AI-written sentences

• Gives a percentage score of AI probability

• Supports document uploads and multiple languages

• Offers basic free use with limits on daily checks

Benefits:

• High accuracy on longer texts

• Offers plagiarism detection in the same scan

• Suitable for professional and academic environments

Limitations:

• Free trial is limited

• Requires account signup

• Paid features unlock full potential

Best for:

• Writers

• Content Managers

• Educators

GPTZero

GPTZero has been a solid go-to for me, especially as a university student. It’s completely free to use, and what I really appreciate is how fast and accurate the results are. You can upload full documents, which is super convenient because you don't have to copy-paste text. Moreover, it also comes with a built-in plagiarism checker, which saves me from using separate tools. It's reliable, simple, and honestly one of the more practical tools I've tried.

Features:

• Uses inconsistencies to analyze how human the writing is

• Highlights sentences it believes are written by AI

• Allows file uploads for DOCX, PDF, and TXT

• Offers a dashboard for educators to manage multiple submissions

• Designed with academic integrity and classroom use in mind

Benefits:

• Built with teachers in mind

• Offers sentence-by-sentence analysis

• Easy to understand and interpret results

Limitations:

• Less effective for short-form text

• Limited functionality without an account

Best for:

• Educators

• Students

Sapling

Sapling AI Content Detector is part of a broader writing assistant suite, but the AI detector tool works on its own and does an extremely good job. What stood out to me the most is how extremely simple the interface is. There’s nothing confusing or extra to deal with, which makes it easy for anyone to use right away. It also supports file uploads and highlights AI-generated text directly in your input, which helps when you’re trying to figure out what parts might need rewriting or editing.

Features:

• Quickly detects whether content was generated by AI

• Returns a percentage-based score of AI likelihood

• No login required

• Supports integration with Gmail.

Benefits:

• Clean UI with copy-paste convenience

• No login required

• Real-time analysis

Limitations:

• Limited explanation of how scores are calculated

• Not ideal for formal documentation checks

Best for:

• Quick Scans

• General Use

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Winston AI

Winston AI claims a 99.98% accuracy in detecting AI-generated content, and in my experience, it definitely lives up to that claim. What really sets it apart is the OCR (Optical Character Recognition) feature, which means it can even scan and analyze handwritten or printed text, which is a game-changer if you’re dealing with scanned documents or class notes. It’s also incredibly fast, giving results in just a few seconds.

Features:

• Scans documents and text to detect AI-generated content

• Designed for use in education, publishing, and corporate communication

• Offers support for image-to-text (OCR) detection

• Highlights AI-written parts and provides a confidence score

• Includes plagiarism detection as an optional feature

Benefits:

• Offers PDF and image text detection

• Clear, color-coded scoring

• Also supports plagiarism checking

Limitations:

• Account required to download reports

• UI can be slower on mobile devices

Best for:

• Educators

• Marketers

• Business dealing with diverse content

Writer

Writer’s free AI content detector is part of its larger writing platform, but the detector itself is super handy on its own. What I liked most is how simple and clean the interface is. It has no sign-ups, no clutter. You just paste your text. It’s also surprisingly accurate and has the unique ability to scan entire webpages, which saves a ton of time if you’re reviewing online content.

Features:

• Detects content generated by AI models including ChatGPT and GPT-4

• Offers a Chrome extension and Microsoft Word plugin

• Supports API access for enterprise use

• Gives quick feedback on AI probability in writing

• Built as part of a larger suite of writing and branding tools

Benefits:

• Offers Chrome extension and Word plugin

• Simple and fast results

• Integrates well with Google Docs and Slack

Limitations:

• API access is only available on premium plans

• May not detect lightly edited AI content

Best for:

Writers, agencies, and professionals working across teams and platforms.

Comparison of the 5 Tools

These five tools, Originality.ai, GPTZero, Sapling, Winston AI, and Writer, each bring something different to the table. Some are better for students, like GPTZero and Winston AI, while others like Originality.ai are more focused on deep analysis. Sapling is quick and simple with no login, and Writer makes detecting AI on full webpages super easy. Depending on what you need, at least one of these will fit the job. Here's a quick breakdown to help you compare them side by side.

After trying out all five, it’s clear that each tool has its strengths depending on your needs. But if you're someone who also wants to fix high detection rates, exploring beyond detection tools becomes important. Personally, I found that pairing these with a solid rewriting tool like the one from Toolsmart made a noticeable difference. It helped a lot in rewriting my content to make sure it had low AI detection scores.

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Solving the High AI Detection Rate of ZeroGPT

If you’re getting high AI detection in your content from various tools, and you want your content to be more human while still being of a high quality, a detection tool alone will never in a hundred years be enough for you. You are going to need a rewriter tool as well, and that is where ToolSmart’s Undetectable AI Rewriter stepped in for me and helped me do just that.

Introducing the Undetectable AI Rewriter of Toolsmart

Toolsmart’s Free Undetectable AI Rewriter is, in my opinion, the best tool out there. It supports different rewriting modes depending on the tone you’re aiming for. What makes it even better is that it’s completely free to use, with no signups, no limits, and no ads to slow you down. It’s honestly one of the easiest ways I’ve found to make AI content sound more natural while keeping the original intent intact.

Toolsmart also has a bunch of other tools that you can try out as well, such as their Pinterest Video Downloader, YouTube Video Downloader, etc. That makes it a perfect all-in-one hub for your needs. If you need a background remover or a pdf to word converter, Tooslmart has got you covered. They also have a plethora of other tools as well, which make it the only site for all of your needs.

Features:

• Multiple rewriting modes

• Completely free

• Unlimited usage

• No sign ups required

• No ads

Benefits:

• 100% free with no sign-up required

• Supports 8 rewriting styles for customization

• High-quality, natural-sounding output

• Great for academic, professional, and casual content

How to Use ToolSmart’s Undetectable AI Rewriter

ToolSmart’s Undetectable AI Rewriter is a very strong tool that helps you check if your content looks AI generated, and fixes it for you in the tone that you want. Let’s walk through how to use Toolsmart’s Undetectable AI Rewriter effectively. Refine it

Step 1: Firstly, open Toolsmart Undetectable AI Rewriter, and paste your AI generated text into it.

Step 2: Then, select a writing mode by choosing from options like "Formal", "Fluency", "Academic", "Creative", or "Simple" depending on your goal.

Step 3: Click on the button labeled "Humanize".

Step 4: Copy the text generated by the tool, and paste it wherever you want to use it!

From my experience, the “Academic” and “Simple” modes are the most effective in reducing AI scores while maintaining clarity. The outputs feel human and well-structured, which is perfect for professional settings.

FAQs

Q1: What customization options are available about Toolsmart’s Undetectable AI Rewriter?

Toolsmart offers eight distinct modes: Standard, Fluency, Formal, Academic, Simple, Creative, Expand, and Shorten. These help tailor output to your specific tone or context.

Q2: What types of content can I process with BypassGPT?

BypassGPT is great for essays, blogs, articles, and reports—essentially any AI-generated content that needs to sound more human.

Q3: Does Sapling integrate with other platforms?

Yes, Sapling works with Gmail, Slack, Salesforce, and other CRM tools, which makes it excellent for team communications and sales writing.

Q4: Is there a browser extension or API?

Writer offers a Chrome extension, Word plugin, and an API (available on paid plans), letting you access AI detection wherever you write.