Clear answers about Timeline Studio

Yes. The public browser editor can be opened without payment. The source code is available on GitHub under the MIT License.

No account is required to open the editor and start working with local media.

Project media is selected and processed in the browser. AI model files are downloaded on demand from configured model hosts, so those hosts receive normal asset requests. Do not assume that every model is bundled with the initial app download.

A current desktop Chromium-based browser provides the broadest support for WebAssembly, WebGPU, MediaRecorder, canvas export and large local model workloads. Feature availability depends on browser APIs and device resources.

Yes when the browser supports the required native recording or browser-side conversion path. WebM is saved as a fallback when MP4 is unavailable or conversion fails.

Chinese uses Piper/VITS browser ONNX voices, including Xiao Ya and Chaowen. English uses Kokoro 82M ONNX. Browser Piper voices are also listed for German, Spanish, French, Italian and Brazilian Portuguese.

Automatic captions use Whisper small q8 ONNX in a browser WASM worker. Coarse ASR timestamps are adjusted toward nearby source-audio energy, and Chinese cleanup is limited to high-confidence contextual homophone corrections.

Yes. The current path uses JoyVASA audio-to-motion ONNX and LivePortrait neural rendering on WebGPU, with 256px preview and 512px quality generation modes. Quality rendering can be slow on current browser GPUs.

Yes. Timeline Studio includes a web app manifest and service worker metadata for installation as a progressive web app in supporting browsers.