S
Synthesia
Description
An AI presenter video service from Synthesia, a London company founded in 2017. You write a script, and a digital avatar reads it on camera in the voice and language you choose. There are ready-made avatars and templates; you can create your own avatar double, translate and re-voice existing videos with lip-sync, and build interactive videos with quizzes. It runs in the browser at synthesia.io.
Pros and cons
Pros
- There is a free plan
- Translates and dubs videos into other languages with lip sync
- You can create your own avatar double
Cons
- Free-plan videos carry a watermark and cannot be downloaded, only shared by link
Key facts
- Free access
- Yes With a watermark
- Pricing
- Pricing on the official site →
- Developer
- Synthesia
- Interface languages
- English
- Checked on
- Oct 2, 2026
Editorial score
How strongly the AI Expertise editors recommend this tool for each of its categories right now, on a 0–10 scale. The score combines output quality, features, beginner friendliness and freshness.