SpeechGen.io

SpeechGen.io

SpeechGen.io is a browser-based AI text-to-speech and transcription platform with 5,000+ neural voices in 150+ languages, pay-as-you-go credits, and commercial licensing.

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ai-text-to-speechai-voice-generatorai-voice-cloningai-transcription
Last Updated Oct 20, 2026
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About

SpeechGen.io is an online text-to-speech (TTS) generator that turns written text into spoken audio using neural voice synthesis. It addresses a common production bottleneck: teams that need voice narration — for videos, courses, phone systems, or guides — but lack the budget or time to book a voice actor for every script.

The service runs entirely in a web browser, so there is nothing to install. Users type or paste text (up to 1,000,000 characters per job, or upload DOCX, PDF, and SRT files), select from a catalogue of more than 5,000 voices across over 150 languages and accents, adjust settings such as speed, pitch, and pauses, and download the result as MP3, WAV, OGG, OPUS, or FLAC. Voices come in three quality tiers — Standard, PRO, and HD — with higher tiers consuming more credits per character. Beyond TTS, the platform offers voice cloning, a voice changer, subtitle-to-audio conversion, audio and video transcription, and a REST API for automation.

Key Features

5,000+ voices in 150+ languages: A large catalogue filterable by language, accent, gender, and quality tier, with audio previews available before any credits are spent.
SSML and pronunciation control: An editor supports SSML tags for breaks, prosody, emphasis, phonemes, and word or number handling, plus adjustable pauses between sentences and paragraphs.
Multi-speaker dialogues: A single audio file can combine several distinct voices, useful for dialogue-driven content such as training scenarios or audio guides.
Voice cloning: A custom voice model can be built from 10–60 seconds of clean speech in about 30 seconds, supporting 15 languages; cloning requires the user's own voice or documented consent from the speaker.
Smart Cache: Unchanged sentences are re-synthesised free of charge within 7 days, reducing costs on iterative edits.
Document and subtitle conversion: Books and long documents can be uploaded and split into a separate audio file per chapter using cut tags.
REST API and integrations: Endpoints for synchronous and long-form asynchronous generation enable automation, with a WordPress plugin and a Make (Integromat) integration also available.

Pricing & Fees

  • Pricing: Pay-as-you-go credit packs with no subscription — 25,000 credits for $4.99, 65,000 for $9.99, 200,000 for $24.99, 500,000 for $49.99, 2,000,000 for $149.99, and 10,000,000 for $599.99. Credits are valid for one year and refresh with each top-up; payment is by card via Stripe or PayPal.
  • Free tier: The editor can be tried without an account for the first 1,000 characters, and registered accounts receive 2,000 free credits; transcription includes 10 free minutes per month.
  • Commercial license: Every plan includes a commercial license covering YouTube, podcasts, ads, e-learning, IVR, apps, and audiobooks.
  • Credit consumption by tier: Standard voices cost 1 credit per 2 characters, PRO voices 1 credit per character, and HD voices 2 credits per character.
  • Transcription service: Audio, video, and YouTube links can be converted to TXT, DOCX, PDF, SRT, VTT, or CSV with automatic speaker labels, on files up to 1 GB or 3 hours; uploaded files are deleted after 3 days.

Who It's For

SpeechGen.io suits content marketers and video producers who need voiceovers on tight deadlines, instructional designers scaling recorded lessons across many students, and small businesses setting up bilingual IVR phone menus. Museum and heritage sites use it for audio guides, manufacturers generate multilingual safety announcements, and exporters localize narration into multiple languages from one script. Developers can also build TTS into their own products through the REST API.

FAQ

What is SpeechGen.io?SpeechGen.io is a browser-based AI text-to-speech platform with more than 5,000 neural voices in over 150 languages, plus transcription, voice cloning, and API features.

Is SpeechGen.io free to try?Yes — the editor works without an account for the first 1,000 characters, and creating an account adds 2,000 free credits; paid credit packs start at $4.99 with no subscription.

Which platforms and integrations does it support?It runs in any desktop or mobile browser, and offers a REST API, a WordPress plugin, and a Make (Integromat) integration for automation.

Can the generated audio be used commercially?Yes, a commercial license covering uses such as YouTube videos, podcasts, ads, e-learning, and audiobooks is included with every credit pack.

What happens to uploaded files and generated projects?Transcription uploads are deleted after 3 days, project history is retained for 30 days, and saved favourite audios are kept permanently; voice cloning requires the user's own voice or written consent from the speaker.