HeyGen: the AI digital human video app that turns text, voice, and video into realistic avatar videos

Product Introduction

HeyGen is an AI digital human video generation app that turns text, voice, or video into realistic AI avatar videos. It suits people who do not want to appear on camera frequently or who lack a professional video production budget. Users simply upload a video, record their voice, or type text, and HeyGen quickly generates personalized, expressive AI avatar videos for many scenarios such as social media, marketing, and education. The workflow is simple, so even users without a technical background can customize the avatar's appearance and voice efficiently and practically.

Key Features

• AI video digital human creation: upload a video or image to create a personalized AI digital human that mimics your expressions and voice.
• Voice-to-avatar animation: record your own voice, or use text-to-speech (TTS), so the avatar animates according to the speech content.
• Text to video: type a text script and the AI generates a realistic digital human that reads the text fluently.
• Rich avatar library: choose from thousands of preset AI digital humans and pick a template that fits your content needs.
• AI-driven video production: create digital humans quickly and easily with AI, saving time while delivering professional video results.

How to Use

1. Prepare materials: decide on the content format — upload a video, record your voice, or get your text script ready.
2. Create or choose an avatar: upload a video or image to create a personalized digital human, or pick a preset avatar and template from the library.
3. Set the voice and script: record your own voice or use text-to-speech, then enter the text you want the avatar to read.
4. Generate the video: submit and let the AI produce the avatar video, with lip sync and expression animation driven by the speech.
5. Review and export: preview the result, confirm the expressions and speech meet expectations, then export.

Use Cases

• Social media content: quickly produce talking-head explainer and update videos with an avatar.
• Marketing and promotion: create product intros and brand promos that do not require repeated on-camera appearances.
• Education and training: turn lesson scripts or knowledge points into avatar-narrated videos at lower recording cost.
• Creators who prefer not to appear on camera: use an avatar instead of going on camera to keep a steady publishing rhythm.

Limitations and Notes

• The features and results described here depend on the actual materials; pricing, plans, and specific quotas that are not mentioned should follow the official page.
• How realistic the avatar looks depends on the quality of uploaded materials, the voice, and the text script.
• When using an avatar's likeness, voice, and generated videos, make sure you have the necessary rights and comply with the platform terms and applicable laws.

FAQ

What is HeyGen? HeyGen is an AI digital human video generation app that turns text, voice, or video into realistic AI avatar videos, suitable for people who do not want to appear on camera frequently or who lack a professional video production budget.

What input methods does HeyGen support? You can upload a video, record your voice, or type text directly. You can also use text-to-speech (TTS) so the avatar animates according to the speech.

Do I need a technical background to use HeyGen? No. HeyGen is relatively simple to use, and users without a technical background can customize the avatar's appearance and voice.

Where can HeyGen avatars be used? For many scenarios such as social media, marketing, and education — for example avatar explainers, product introductions, and course videos.

What determines the quality of the generated avatar video? The result depends on the quality of the uploaded materials and the voice or text content. When using the avatar's likeness, voice, and generated content, make sure you have the necessary rights and follow the relevant rules.