Synthesia

Synthesia is an AI video platform that turns scripts, documents, or URLs into videos with realistic talking‑head avatars, automatic voiceovers, and templates in 140+ languages. It is widely used for training, L&D, product explainers, and internal comms where teams need lots of videos without cameras, studios, or presenters. Synthesia is an AI avatar video maker: you pick an avatar, paste or generate a script, choose a template, and it outputs a fully voiced video you can edit, translate, and publish in minutes.
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Core features
Text‑to‑video creation with 230+ AI avatars and 140+ languages/accents, including custom “digital twin” avatars.
​AI voiceovers with natural prosody, voice cloning options, and auto‑synced lip movements.
300+ templates, brand kits, media library, and timeline editor for on‑screen text, B‑roll, screen captures, and layouts.​
​One‑click translation and localization of existing videos into 140+ languages.
​Web‑based collaboration with comments, shared workspaces, and versioning for teams.

Key tools it offers
Synthesia Studio: Main browser editor to assemble avatar scenes, import docs/URLs, generate scripts, and customize branding.
​AI avatars & digital twins: Large avatar library plus custom corporate avatars and personal “selfie‑to‑avatar” creation.
​AI script & doc‑to‑video: Convert PDFs, slide decks, or URLs into structured video scripts and scenes.
​Courses & interactive video (3.0): Tools to stitch lessons into courses and “videos you can talk to” for more interactive experiences.​
​API & personalization: Programmatic video generation and personalized videos for sales, onboarding, or transactional emails.
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Benefits for users
For L&D & HR: Swap live shoots with fast, consistent training and onboarding videos that are easy to update and localize.
​For product, support & CS: Turn help docs and release notes into short explainer videos at scale.
​For marketing & sales: Produce presenter‑style campaigns, pitches, and localized landing page videos without agencies.