Synthesia

Synthesia makes videos without a camera, microphone or studio. You write or paste a script (or start from a document, a link or a PowerPoint deck), pick an AI avatar and a voice, and Synthesia renders a presenter-led video. It is used mostly for training, onboarding, internal communication and product explainers.

Key features

• Avatars: hundreds of stock avatars with changeable outfits and backgrounds, a personal avatar created from a single photo, and an avatar builder for 3D, comic, anime or claymation styles.
• Languages: videos in 140+ languages and voices, and voice cloning to pair your own voice with your avatar.
• Dubbing: translate existing videos while keeping the speaker's voice, with optional lip-sync.
• Syren: an AI video agent that drafts a video from a description.
• Sessions: interactive avatars for sales or management roleplay practice and conversational surveys.
• Workflow: screen recorder (Chrome extension), interactive buttons and quizzes, SCORM export for learning platforms, and an API for video creation, dubbing and real-time avatars.

Pricing

As of October 2026 the free Basic plan includes 10 minutes of video a month, 500 credits and 125+ stock avatars, with a Synthesia watermark and no credit card required. Starter and Pro remove the watermark and add credits; Enterprise is custom.

Who it's for

Learning and development, HR, sales enablement and marketing teams that need many consistent, easily updated videos in several languages.

Related on SleekNav

HeyGen is the closest alternative. For editing real footage, see Descript.