Instead of Voicebox
Voicebox alternatives
Voicebox combines voice cloning, speech generation, dictation, and agent voice output in a local studio. It clones a voice from three seconds of audio, offers seven text-to-speech engines, edits multi-voice stories, applies effects, and provides a local REST API. The desktop app works offline without an account, supports commercial use, and runs on Android, iOS, Linux, macOS, Windows, self-hosted setups, and API connections. Its studio supports 23 languages, while local Whisper dictation supports 99.
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iSpeech
Free plan Open source AndroidAPIExtension+5Speech APIs with recognition and broad format support — iSpeech adds speech-recognition APIs, custom recognition models, online tools, SDKs, and ten listed export formats beyond Voicebox’s local studio.
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Vocalware
by VocalwareFree trial AndroidAPIiPhone+4Cloud real-time website and mobile speech integration — Vocalware is a cloud API with over 100 voices in more than 20 languages, rather than Voicebox’s local cloning and editing studio.
From $99.50 · 15-day trial Visit site - 3
Voice RSS
Free plan AndroidAPIiPhone+4Simple cloud TTS with many languages and voices — Voice RSS offers 49 languages, 100 voices, synchronous cloud responses, SSML, and five audio codecs instead of Voicebox’s local workflow.
Free plan · paid from $5/mo Visit site - 4
KittenTTS
Free plan AndroidAPIiPhone+5Open-source local TTS with built-in voices — KittenTTS is a CPU-capable open-source library with 47 built-in voices, 20 languages, and expression tags, while Voicebox is a broader studio.
Open source Visit site - 5
Resemble AI
Free plan AndroidAPIExtension+6Multimodal AI-content detection and watermarking — Resemble AI focuses on detecting and watermarking AI-generated audio, video, and images, unlike Voicebox’s creation-focused voice studio.
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TTSReader
Free plan AndroidAPIExtension+4Reading documents and webpages aloud — TTSReader reads PDFs, DOCX, TXT, CSV, EPUB files, and webpages, then exports MP3 or WAV, unlike Voicebox’s studio workflow.
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Voice.ai
by Voice.aiFree plan AndroidAPIiPhone+4Real-time voice changes in PC applications — Voice.ai changes microphone voice in real time and supports named communication apps and games, while Voicebox emphasizes local generation, editing, and dictation.
Free plan · paid from $5/mo Visit site - 8
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Whisper
Free plan Open source APILinuxMac+2 - 12
Avidemux
Free plan Open source LinuxMacWeb+1 - 13
Google Cloud Text-to-Speech
Free plan AndroidAPIiPhone+1 - 14
NVIDIA Magpie TTS
Free plan APILinuxSelf-hosted+1 - 15
Tencent Cloud Text to Speech
Free plan AndroidAPIiPhone+17.6 Visit site - 16
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Qwen3-TTS
Free plan APILinuxSelf-hosted+1 - 21
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Oracle Cloud Infrastructure Speech
Free plan APILinuxWeb - 25
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IndexTTS
Free plan APILinuxSelf-hosted+2 - 27
VOICEVOX
Free plan APILinuxMac+2 - 28
VoiceStudio
Free plan APILinuxMac+3
An alternative may suit you better if you need hosted APIs, speech recognition, more languages or voices, document reading, or real-time voice transformation. Voicebox’s Local plan is free with unlimited local generations and captures; its $12/year Cloud and $48/year Studio plans are coming soon, with cloud pricing and limits unfinished. Compare privacy and deployment with cloud access, cloning and editing with straightforward synthesis, language coverage, export formats, input limits, and specialist workflows such as recognition, document playback, or live voice changes.