HeyGen

HeyGen is a platform for avatar videos: write a script, pick a digital presenter, and it produces a talking-to-camera video. You can also upload your own footage and voice to build a personal avatar, after which new videos only require new text rather than a new shoot.

Its other headline feature is video translation: take a real person speaking, translate the speech into another language while keeping the speaker’s own voice, and re-sync the lip movements so it looks as if they are speaking that language. For teams producing multilingual content, this removes much of the cost of dubbing and reshoots.

Its value is scale and editability. Training courses, product explainers and multilingual marketing — formulaic videos that need frequent updates — are the best fit. Avatars still look off in close-up, though, and their emotional range is narrow, so it is a poor choice for content that depends on genuine presence.

Key features

• Script-to-presenter video: Choose from a large library of stock avatars, paste a script and generate an explainer.
• Custom avatars: Train a personal avatar from your own recorded video and voice, then update videos by editing text.
• Video translation: Translate a speaking video into other languages, preserving the original voice and syncing the lips.
• Photo avatars: Create a talking presenter from a single photo — easier to set up, but less convincing than a video-trained avatar.
• Templates and scene editing: Layout templates with captions, images and backgrounds, edited in the browser.

How to use

1. Sign up on the HeyGen website; the free credits are enough to try a short video.
2. Pick a stock avatar, or follow the guided flow to upload your own footage and create one.
3. Enter or paste your script, choose a language and voice, and adjust the template, captions and background.
4. Generate, preview and export. For other languages, run the result through video translation.

Best for

• Corporate training and courses: frequent updates become a matter of editing the script and regenerating.
• Product explainers: formulaic, instructional videos are where it is most efficient.
• Multilingual marketing: one recording turned into many languages for overseas audiences.
• Solo educators and creators: steady output when appearing on camera is inconvenient or time is short.

Strengths and limitations

Strengths

• Very short path from script to finished video, ideal for producing explainers in volume.
• Lip-sync in video translation is among the better results in its category.
• Once an avatar is set up, updates only require text changes, keeping long-term costs low.

Limitations

• Avatars still look unnatural in close-up, with limited expression and gesture.
• Free credits and video length are limited; longer videos and higher-resolution export need a subscription.
• You must have consent before using anyone else’s face or voice, and disclosing AI-generated content avoids misleading viewers.
• It is an overseas service, so access and payment from mainland China may not be smooth.