Free alternatives
Free alternatives to Synthesia
The best free, open-source alternatives to Synthesia are OpenVoice and Kokoro. OpenVoice and Kokoro run entirely on your own computer, with no subscription.
Synthesia is a paid service. AI presenter videos built for training, onboarding, and company communications. If you'd like to do the same kind of work without a subscription, these are the open-source tools to try first. Checked November 2026.
| Tool | What it does | Runs | Real cost | Score |
|---|
| OpenVoice | Clones a voice from a short sample and speaks in it across several languages. | On your computer | Free | 3.8 |
|---|
| Kokoro | A very small text-to-speech model that sounds far better than its size suggests. | On your computer | Free | 3.6 |
|---|
The top picks
Clones a voice from a short sample and speaks in it across several languages.
- For tinkerers
- Windows · Mac · Linux
- Code
- Open source, MIT
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
A very small text-to-speech model that sounds far better than its size suggests.
- Some setup
- Windows · Mac · Linux
- Code
- Open source, Apache-2.0
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
More free tools worth a look
Turns speech into text. Transcribes and translates recordings, interviews, and video audio.
- Some setup
- Windows · Mac · Linux
- Code
- Open source, MIT
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
A lightweight version of Whisper that transcribes quickly on ordinary laptops with no graphics card.
- Some setup
- Windows · Mac · Linux
- Code
- Open source, MIT
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
A desktop studio for staging and generating AI images and video. You connect the AI services you already use.
- Easy install
- Windows · Mac · Linux
- Code
- Open source, Apache-2.0
- Models
- Paid services, your own keys
- Runs
- In the cloud
- Real cost
- Free app, usage fees
Converts one voice into another, for dubbing and singing voice work.
- Some setup
- Windows · Linux
- Code
- Open source, MIT
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
A rebuilt Whisper engine that transcribes several times faster using less memory.
- Some setup
- Windows · Mac · Linux
- Code
- Open source, MIT
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
Selects and tracks any object through a video from a single click, for masking and effects work.
- For tinkerers
- Windows · Mac · Linux
- Code
- Open source, Apache-2.0
- Models
- Open weights
- Runs
- On your computer
- Real cost
- Free
Common questions
Is there a free version of Synthesia?
Synthesia's own free plan: yes, watermarked minutes. For unlimited free use, the open-source alternatives are OpenVoice and Kokoro.
Are the free alternatives to Synthesia as good?
It depends on the job. Synthesia is best for training and corporate video, and paid services are usually easier to start with. Open-source tools cost nothing and give you more control, but most need some setup and a capable computer.
What do I need to run them?
Each tool's page lists the memory and graphics card it needs. Enter your computer's specs once on our Can I Run It page and every tool shows whether it fits.
Want the paid service anyway? See our Synthesia page for price and free-plan details.
whisper.cpp
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Segment Anything 2
