ESPnet
8.1#24 in text-to-speech toolsFree planFree planAPILinuxmacOSSelf-hosted
VisitESPnet vs Voicebox
What both publish
| Fact | ESPnet | Voicebox |
|---|---|---|
| API access | Yes | Yes |
| Commercial use | Yes | Yes |
| Company identity | The independent project profile describes espnet/espnet as an open-source project with Apache-2.0 licensing, about 9,984 stars and 2,444 forks at its October 2026 snapshot. | The Voicebox website footer identifies the maker as Spacedrive Technology Inc. |
| Licence | The repository and website identify the software as Apache License 2.0. | The source repository is released under the MIT licence, permitting use, modification, distribution, sublicensing, and sale subject to the notice requirement. |
| Maker | The website credits the ESPnet community rather than naming a commercial company, and no headquarters or corporate founding details are stated there. | The download page identifies Jamie as the maintainer and says Voicebox is a spare-time side project; the site footer attributes it to Spacedrive Technology Inc. |
ESPnet plans
- ESPnetFree
- ESPnet open-source toolkitFree
Voicebox plans
- LocalFree
- Cloud$12 a year
- Studio$48 a year
Pick ESPnet if…
ESPnet suits developers and speech-processing learners who want recipes, tutorials, and existing-model inference or task-specific training. Users should be prepared to install optional dependencies where needed.
Pick Voicebox if…
Voicebox may suit people creating voice content, dictating into apps, or adding voice output to agents. Its local operation and API may appeal to users who want offline workflows or client integrations.