AI voice generator
Generate natural-sounding voiceovers using Synthesia's AI voice generator. No need for microphones, voice actors, or audio recordings.
- Generate AI voices in 140+ languages
- 240+ talking AI avatars
- Amazingly realistic and lifelike
Rated 4.7/5 on G2
Trusted by over 50,000 companies
Why Synthesia is the best AI voice generator
Get the most expressive AI voices for everything from YouTube to professional explainers with Synthesia.
Generate 1000+ voices in any language

Access a vast library of high-quality, realistic AI voices across 140+ languages, and create content for global audiences without hiring voice actors.
Effortlessly clone your voice
Clone your voice with Synthesia’s state-of-the-art Express-Voice model, the industry’s best performing technology for voice matching.
Seamlessly integrate voices with videos
Create natural-sounding AI voiceovers and videos with AI avatars. Make engaging videos without the need for cameras and microphones.
Translate TTS voiceovers and videos in 1 click
With Synthesia's integrated video translation tool, effortlessly adapt any video and audio content into 70+ languages in just one click.
Generate script with AI and convert to speech
Use the built-in AI script generator to create an engaging video script and transform it into an AI voiceover in one place.
Collaborate with your team in one place
Save time by working on your AI voice generation projects with multiple team members, all in one place.
Realistic AI voices for any use case
Create training videos with natural-sounding AI voices in minutes, instead of weeks. Replace boring text-based training manuals with engaging videos.
Generate educational content with lifelike AI voices to increase learners' engagement. Create lectures with voiceovers in just a few clicks.

Improve your customer experience and satisfaction by transforming your knowledge base articles into short videos with natural AI voices.
Keep your employees and stakeholders engaged with natural-sounding and realistic internal communication and corporate videos.

Create professional-looking explainer videos, product videos, and brand videos without hiring a video production or recording studio.


Generate AI voiceovers in 140+ languages
How to generate your own AI voice clone
See how you can use Synthesia's powerful features to turn text into engaging AI voiceover videos in minutes.
Create your account
To clone your voice, you’ll need a Synthesia Enterprise plan.
Record your voice
Find a quiet spot, open the “Voices” tab, select “New voice,” and follow the on-screen steps to record.
Wait for processing
You’ll get an email when your clone is authorized and ready. It usually takes less than 15 minutes.
Create with your new AI voice
Use your AI generated voice to create fully customized videos in Synthesia.


Pain points solved by AI voice generation

Built on the foundations of AI ethics and security
People first, always. Since 2017, we've prioritized secure, safe and ethical use of Artificial Intelligence.
SOC 2 & GDPR compliant
Our data handling systems and processes are independently audited and certified.
Trust & Safety team
A dedicated team ensures the protection of your data and ethical application of AI.
Content moderation
We use a combination of human and AI moderation to safeguard our users.
AI policy and regulations
We engage with regulatory bodies and welcome robust AI policies and regulations.
Frequently asked questions about AI voice generation
What is an AI voice generator?
An AI voice generator is software that converts written text into human-like voices. It can be customized to different speech styles, ages, genders, and accents and offers an easy translation to over 140 languages.
Which is the best AI voice generator?
Synthesia is best AI voice generator (according to G2 reviews). It combines the most advanced AI voices with state-of-the-art generative video capabilities that allow users to generate realistic videos with voiceovers in minutes!
What is the most realistic AI voice generator?
The most realistic AI voice generator is Synthesia. In both human listening tests and technical evaluations, our EXPRESS-Voice model consistently outperformed other voice-cloning systems in matching both identity and emotional tone. Read more.
Are there any free AI voice generators?
Try Synthesia's free AI voice generator to test out its voice generation capabilities. Simply pick a voice, type in your script into the best free AI text-to-speech tool, and press 'Play' to hear the result.
Can I make an AI of my own voice?
Yes! You can create your own AI voice using Synthesia's built-in voice cloning feature. Then, your own AI voice will appear in your Synthesia account, ready to be paired up with any avatar.
What is an AI voice?
An AI voice is a synthetic voice generated by artificial intelligence, designed to mimic human speech patterns and tones.
How can I make an AI voiceover?
To make an AI text-to-speech voiceover, go to Synthesia's text-to-speech video creator and follow these steps:
- Sign up for Synthesia
- Create a new video by choosing a template
- Paste your video script and choose an AI voice to generate the text-to-speech voiceover
- Edit the video by adding an AI avatar, images, music, videos, and more
- Generate and download your video
Not just an AI voice generator
Beyond turning text into realistic AI voices, Synthesia helps you scale production with powerful tools like the AI script generator, AI dubbing that perfectly translates and lip-syncs your video content in 32 languages, and a library of professional video templates designed for training, marketing, and more.
Need to convert a slide deck into a video? Use our PPT to video tool to save hours of editing. Everything you need to create professional videos at scale - in one place.