15.AI: Everything You Need to Know & Best Alternatives

Delve into the wierd and wacky world of 15.ai and discover the top alternatives to 15.ai for 2024.

When 15.ai sprung onto the scene in 2020 with its AI text-to-speech technology, it became a one-stop shop for voice clones of all your favorite real-life and fictional characters.

Developed by an anonymous MIT researcher under the name '15', this platform became the go-to text-to-speech tool for anyone who wanted to create lifelike and realistic AI voices for any reason. Yet, 15.ai is no longer available, and issues of copyright, competition, and more have meant that 15.ai is not likely to return online any time soon.

This blog will tell the story of 15.ai. We'll learn how 15.ai began, what it is, and the best 15.ai alternatives on the market so you can start using the latest in artificial intelligence to create your own voiceovers.

What is 15.ai?

15.ai was launched in 2020 as a text-to-speech converter platform that allowed creators to convert text into natural speech using the power of artificial intelligence. Combining speech synthesis with machine learning, deep learning, deep neural networks, and audio synthesis algorithms, 15.ai transformed how users created different voices with AI text.

The freeware site could create voices in real time using sentiment analysis models, providing you with a high-quality voiceover immediately to generate emotional and realistic voices as fast as could be. On September 8, 2022, 15.ai was taken down, citing a new update was coming, but as of January 2024, it is still offline.

What Does 15.ai And Its Alternatives Do?

As 15.ai is currently offline, we have to go back in time to describe what exactly 15.ai alternatives do and what they can be used for.

Generates Expressive Character Voices

AI text-to-speech software can create voices from a catalog of media sources and speech synthesis without the need to hire voice actors for your projects. Unscrupulous software even allows you to clone celebrity voices like Barack Obama and Donald Trump, which raises ethical questions about their right to privacy, copyright infringement, and more.

Converting Text Into Different Languages

The internet contains a huge wealth of videos and content, but the majority of it is in English. For many people, having an alternative translation of the content they enjoy in another language is a better way to engage with their favorite creators.

AI gives creators the power to translate their content into multiple languages, reaching a wider audience and improving engagement rates.

Create Natural Sounding Voices

If you have a particular project or story you want to tell in mind, you'll need your characters and their AI voices to sound just right. This might mean using a male or female voice, choosing a specific localized accent, or even speaking at a certain tone or pitch.

All this is easy to do with AI technology. In just a few clicks, a content creator can turn their script into narration from a wise old British man and then into speech that sounds like a young American woman. That means no lengthy interview processes for the perfect voice actor and fewer costs involved in your content creation.

The Best 15.ai Alternatives

There are dozens of 15 AI alternatives out there, but only a few truly get the job done.

From cloning your own voice to creating AI voices or making voice effects, there are various formats to choose from, and all have their own basic plan and paid plan pricing.

15.ai Alternative Star Rating Monthly Cost? Free Trial? Best For…
ElevenLabs ⭐ ⭐ ⭐ ⭐ ⭐ From just $1 / Month Professional level voice generation
Lovo AI ⭐ ⭐ ⭐ ⭐ Basic starts at $24 / Month Variety of voices and settings
Play.ht ⭐ ⭐ ⭐ ⭐ Paid options start at $31.20 / Month Multilingual side-by-side audio
NaturalReaders ⭐ ⭐ ⭐ $99.50 for lifetime use Its platform friendly interface
Narakeet ⭐ ⭐ ⭐ $0.20 per minute (with a confusing pricing option) Built-in AI video creation tools
Fakeyou ⭐ ⭐ ⭐ No free trial, but starts at $7 / Month Creating famous voices
Uberduck ⭐ ⭐ Creator packages start at $96 / Year Customizable pitch and speed settings
Murf AI ⭐ ⭐ $29 / Month Removing background music

From the top down, let's run through the 8 best 15 AI alternative sites.


The best alternative of all the speech tools similar to 15.ai has to be ElevenLabs.

Here, you can instantly transform text to natural speech online for free in any language with the highest-quality AI voice generator on the web. Get professional-level results with a budget-friendly AI voice changer, all packaged within a straightforward platform that is easy to use.

Design captivating and realistic voices for audio experiences unlike any other. The spectrum of diverse and dynamic AI text-to-speech voices is designed to be deep, with a vast emotional range and multilingual capability. Context-aware speech synthesis recognizes nuances in speech and can create human-like voice audio with accurate tones.


Lovo.ai offers an extensive collection of diverse and different voices supported in over 100 languages. It is mostly used for its text-to-speech editor, video editing, and AI scriptwriting.

Lovo.ai's substantial suite of creation tools and clean UI make it a great choice for an alternative text-to-speech voice generator, but it comes with some setbacks.


  • Great variety of voice options and languages.
  • Clean and user-friendly interface.


  • The free plan has many restrictions, such as a lack of commercial usage rights.
  • Free plan videos come with a very noticeable watermark.


Play.ht is different from other voice changer and cloner software because of its real depth when it comes to the quality of different voices.

This text-to-speech converter transforms any text or document into speech in over 900 voices. Their ultra-realistic voice offerings can be used to generate voices for podcasts, narration, eBooks, and more.


  • Offers built-in voices that can be emotionally adjusted.
  • Multilingual side-by-side audio.


  • Play.ht only supports 100 languages.
  • The pronunciation accuracy is poor.
  • Users must pay for commercial usage rights.


NaturalReader is a simple tool for creating text-to-speech voices in different file types and multiple languages. As well as generating voices with realistic results, NaturalReader has extensive licensing terms, meaning it can be used copyright-free. It also supports cross-platform collaboration for multiple users to work on the same project.


  • Creates instant and realistic voices.
  • It can be used on many platforms.


  • The interface is extremely simple.
  • Files must be downloaded for optimum smoothness.


Narakeet is a text-to-speech voice program with a rich library of over 500 voices and 80+ languages used for creating videos. What sets Narakeet apart from its competitors is its usage of video creation.

On this alternative site, you can turn images into videos or submit voiceovers to generate slideshows. It also has templates for quick-optimized video creation for various platforms like YouTube and Facebook.


  • Background music and narration can be added to the videos.
  • The interface is easy to use.
  • Built-in AI editor for video creation.


  • Slow processing power.
  • A small list of voices.
  • Only supports limited languages.


Another great 15 AI voice synthesizer alternative is FakeYou, which has advanced features that create emotive characters in record time. FakeYou allows you to generate recognizable and emotive character voices based on celebrities and famous TV and movie characters – but experiment with caution! The unauthorized use of celebrity voices could have legal consequences.


  • FakeYou has an unlimited TTS feature in every plan.


  • Some voices do not sound natural.
  • FakeYou can be used for AI deep fakes and, therefore, can violate commercial usage rights.
  • It can also be used to create information that is misleading.


Uberduck features a celebrity voice bank as well as an AI voice synthesizer to produce mimicked celeb voices as well as cartoon characters to be added to videos, songs, and messages, without the need to hire a voice actor.


  • Uberduck provides its Premium users with an API to train on samples of their own voice.
  • User-friendly interface.
  • Customizable pitch and speed settings.


  • Uberduck falls short of its supported languages, which are limited to English, Portuguese, Dutch, Spanish, and Polish.
  • Free Plan Users can access all voices but can only save up to 5 audio files.

8: Murf.ai

A solid AI alternative site is Murf.ai. Its text-to-speech synthesis software has 100+ natural-sounding voices available to peruse in 20+ languages. With Murf.ai, users can adjust the volume, pitch, and speed of voices they generate to align with the tone needed.


  • Murf.ai boasts many features like voice cloning and voice changers.
  • You can also add background music to the voiceover you create.
  • Murf.ai eliminates background noise from converted voices.


  • Even with the free version, users can't download files, rendering Murf.ai useless for projects and content creation.
  • The free version also only allows 10 minutes of transcription and voice generation.
  • The Basic Plan for $29 per user per month features 60 voices in 10 languages, nowhere near the massive library of languages and voices they actually own.

Final Thoughts

15.ai may never return, so if you need a new favorite voice changer and voice cloning tool, look no further than ElevenLabs as your AI alternative.

With ElevenLab's powerful machine learning and an advanced AI-powered Voice Lab, you can make near-perfect human voices, create complex voiceovers, and make content creation easier with a text-to-speech converter that knows the right voice is key to bringing stories and projects to life.

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