TTSMP3 vs Voicebox
TTSMP3
ttsmp3.com
Voicebox
voicebox.shSide by side
| Figure | TTSMP3 | Voicebox |
|---|---|---|
| Price from | — | $1/mo |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 6 | 3 |
| Spec score · Text-to-speech tools | 7.5 (#172) | 9.4 (#2) |
| Spec score · Text-to-Speech Software | 7.5 (#166) | 8.7 (#32) |
| API | API access is included with every one-year plan and can return a generated MP3 file URL for use in apps, websites and automated workflows. | Voicebox exposes a local REST API for speech generation, voice profiles, model status, generation history, and health checks. |
| API access | Yes | Yes |
| API endpoint | The documented API accepts GET or POST requests at api.ttsmp3.com/v1/ with apikey, speaker and text parameters. | The documented local server runs at http://127.0.0.1:17493 and exposes OpenAPI documentation at /docs. |
| Commercial use | Generated MP3 files may be used in commercial and non-commercial projects, including videos, websites, apps and e-learning, without required credit. | Yes |
| Free plan | Yes | Yes |
| Languages | 28 | 23 |
| Maker | The Terms of Service identify EPSILON WEBCRAFTS LLC as the operator of ttsmp3.com. | 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. |
| What it does | Online text-to-speech converts written text into spoken audio that can be played and downloaded as MP3. | Voicebox is a local AI voice studio for voice cloning, text-to-speech, dictation, transcription, and agent speech. |
Plans
TTSMP3
- FlexiblePrice not published
- FlexiblePrice not published
- Long-TermPrice not published
- Long-TermPrice not published
- StandardPrice not published
- StandardPrice not published
In their own words
Voicebox
Voicebox is a free, open-source local AI voice studio for voice cloning, speech generation, dictation, and agent voice output. Its desktop app can clone a voice from as little as three seconds of audio, supplied by file, microphone recording, or system capture. The maker lists seven text-to-speech engines for cloning, preset voices, and delivery control. A timeline editor supports multi-voice narratives, arranging tracks, trimming clips, and mixing conversations; effects include pitch shift, reverb, delay, and compression. Dictation uses a global shortcut to send transcripts to the focused text field or clipboard, with local Whisper models supporting 99 languages. MCP-aware agents such as Claude Code, Cursor, and Cline can speak through Voicebox, and a local REST API provides speech generation and related functions. The privacy policy says the offline desktop app requires no account and does not send recordings, profiles, transcripts, generations, or settings to the maker. Local is free with unlimited local generations and captures. Cloud and mobile sync are marked as coming soon, and cloud pricing and limits are not final.