The 5 Best Undetectable.AI Alternatives (for Bypassing AI Detectors)

We’ve finally reached the point since the rise of ChatGPT & AI-generated writing where it’s no longer stigmatized. I've been using Undetectable AI since it first came out years ago & absolutely love it.

If you don't want to publish AI-generated content right out of the box, you can throw it into a tool like Undetectable and get a paraphrased result that generally bypasses AI detectors. These are good tools to help prevent AI false positives and help you clear your name when you’re falsely accused of using AI.

It‘s super easy to use when you need to rewrite something quickly but don’t have the time. If you want to read exactly how it works, I also wrote up a complete Undetectable AI review with a lot more depth.

As great as this tool is, there are a few alternatives that aim to do the same thing but vary your sentences a little differently.

1) HideMyAI

HideMyAI is an AI paraphrasing tool that has extremely similar features to Undetectable. You can also use dropdown menus to select from seven different types of rewriting styles, eight educational levels, and four perspectives.

HideMyAI also gives you a “detection likelihood” from popular AI detectors such as Originality, TurnItIn, and Content at Scale. It's insane. I also find it to not mess with my grammar & sentence syntax as much as Undetectable – but it really varies.

You can use HideMyAI for free provided you sign up for an account, and free credits will be added for you to use. You also can upgrade to the Pro plan that has a 10,000-word limit for only $8.25 a month but I'd highly recommend trying the free version first. It's worth figuring out which tool you like better.

If any of your transformed writing gets detected as AI-detected content, you can get credits back for those generations.

HideMyAI Pros and Cons

2) Netus.AI

I used to work with Netus a bit but it seems to be poorly made. It has like 50 different bypassing tools to rewrite, without so much as a description on what makes certain features different. Here’s all they say:

• V1 and V2: Highest level of stealth.
• V1 to V29: Works best for TurnItIn and ZeroGPT.
• V30 to V50: Best for all detectors.

What makes, for example, V31 different from V47? I don’t know.

The point is that I think it's very unorganized, but it's pretty affordable and still gets the job done like Undetectable & HideMyAI.

Now regarding accuracy — that's up in the air. It won’t be as good as Undetectable AI when it comes to hiding from AI detection. As for readability, here’s an output you can read to make your own judgment. Personally? I just find it kind of weird...

NetusAI Pros and Cons

3) Quillbot Paraphraser

Quillbot has been a very popular AI writing tool since its release in 2017. With its additional features including a grammar checker, summarizer, translator, and plagiarism checker, this tool is ideal for educators, essayists, and other writing professionals. As of this writing in October 2024, Quillbot has over 56 million active users.

Quillbot’s paraphrasing tool has a free version with no signing-up required. However, it has a 125-word limit per input and 9 writing modes. If you want it unlimited, go with the premium plan with a starting price of $19.95 a month. Once doing so, you can also enjoy all its features including the Paraphraser History and Plagiarism Checker.

But the thing with QuillBot is that it can’t really bypass AI detection consistently without using other tools. Here’s an example of what I’m talking about:

Quillbot Pros and Cons

4) Paraphraser.io

Paraphraser.io is an AI writing tool founded in January of 2020. This freemium paraphrasing platform also has an article rewriting tool, grammar checker, text summarizer, and plagiarism checker. The paraphrasing tool has 6 writing modes, while the rewriter has 2 rewriting modes. Paraphraser.io also has a WordPress plugin.

With Paraphraser.io, you can rewrite 11 languages and paraphrase 12 languages, including Dutch, French, German, Japanese, and Tagalog. The free version of Paraphraser.io has a 500-word limit per input for rewriting and a 400-word limit for paraphrasing. You can increase your word limit to 1500 for only $9 weekly.

As you can see, the results from the rewriter tool had a 99% Human Probability score each.

The only problem I have with Paraphraser is that, unfortunately, I don’t think it’s that good. It’s writing as good as QuillBot and it’s not bypassing AI detectors as consistently as Undetectable AI.

Paraphraser's Pros and Cons

5) WriteHuman

WriteHuman is one of the biggest surprises in AI writing in my opinion. For years, I’ve used Undetectable AI to turn AI-generated writing into something more human since, well, it’s the only one good enough.

I never really expected WriteHuman to be close to that level, but it is. 

In terms of both output quality and accuracy, it’s near Undetectable AI’s level already despite being released years later. I still think that the older tool is better, but it’s definitely got some competition now. 

WriteHuman Pros and Cons

Which Alternative Should You Use?

After conducting thorough tests, HideMyAI & WriteHuman are the crystal clear winners as my personal favorite alternatives to Undetectable AI. HideMyAI does pretty much the same thing, while WriteHuman paraphrases your text most similarly to Undetectable AI, but it lacks customization features.

Scribbr’s paraphrasing tool is equally great in terms of quality. But unfortunately, it's not exactly practical when you're facing a mountain of content to rephrase.

For Paraphraser.io, I’d say the quality is above satisfactory, although the ads in the free version are a real eye sore. But while the premium plans are very affordable, the tool has no refund policy. The number of languages it can paraphrase is impressive but I was not able to test them.

At the end of the day, picking an Undetectable AI alternative boils down to your specific needs. You should honestly just try them all (since most offer a free version anyway) and see what gives you the most accurate and consistent results.

Remember, even the most sophisticated AI paraphrasing tool can't guarantee to fool all detection mechanisms all the time. Sometimes, it just boils down to luck. If you've used any of these & have comments, I would love to hear your thoughts in the comments below!