SpeechGen
SpeechGen.io is an online text-to-speech tool. According to the official statement, it offers over 5,000 voices and 150 languages, supports MP3/WAV/FLAC export and multi-character dialogue, charges by the number of characters, and is suitable for short video dubbing and courseware.
Updated: 2026-10-26
What is SpeechGen?
SpeechGen.io is an AI dubbing tool that runs in a browser. It can directly convert text into downloadable audio files without the need to install software or hire voice actors. The official scale it offers includes over 5,000 voices and 150 languages, capable of handling short sentences to entire books. Its difference from common subscription-based TTS lies in the billing method: you purchase credits by character count, and the credits are valid for 365 days from the date of purchase. The official also highlights free regeneration, built-in background music, and multi-character support for a single file as its main selling points.
Who is it for?
- Marketing and video teams racing against deadlines can directly generate MP3s when they don't have time to hire voice actors for product explanation videos.
- Course designers and trainers who can split a lecture into audio for dozens of lessons while keeping the same voice.
- Small businesses running online stores, clinics, or repair shops that need bilingual phone greetings or IVR prompt tones.
- Content editors at museums, parks, and wineries who create audio tours need to split the content by venue and overlay background music.
- Teams going global do localization, using the native voices of five different languages for the same subtitles.
Key features
6Large-scale Voice Library
The official website states that there are over 5,000 voices, categorized into three quality levels: Standard, HD, and PRO. Users can filter voices by gender, accent, and style, and voice previews do not consume character credits.
Multilingual Output
Covers 150 languages, supports export formats including MP3, WAV, and FLAC, with bitrate selectable as needed.
Smart Cache
According to the official description, it records the last synthesis. When you correct typos and regenerate the same content, no character quota is deducted, making it ideal for repeated revisions.
Multi-role & SSML
Assign different voices to different paragraphs using angle bracket tags to complete interviews, dialogues, or courses with dual tones in a single file; supports inserting precise pause, emphasis, speech speed, and sound effect tags.
Chapter Splitting and Background Music Mixing
Add a separate line in the text to set split markers, and export each paragraph as an independent audio file; the built-in AI music library can be mixed with human voices at a proportional ratio.
Supporting Tools
Convert PDF and DOCX files to audio, REST API, transcribe audio and video to text (officially supporting 140 languages with speaker labels and timestamps), and dub audio based on timecodes for SRT and VTT subtitles.
How to use SpeechGen
- The official website offers a free trial of 1,000 characters without registration and no watermarks.
- after registration, an additional 2,000 characters are provided.
- Use this credit to compare the actual audio quality of the HD and PRO tiers.
- For long manuscripts, insert section markers by chapter first before synthesis, eliminating the need for manual audio trimming later.
- Write scripts for conversational content using multi-role tags, which sounds more natural than post-editing and also saves on character credits.
- Billing is based on characters.
- credits are valid for 365 days.
- When the volume is high, compare the unit price of different packages before recharging.
- do not stock up too many credits at once.
- For commercial dubbing, pay attention to the scope of authorization: the official states that all packages include commercial licenses, but there are still compliance risks when using synthesized speech for advertising endorsements or other people's images.
Traffic & popularity
Data month Sep 2026
SpeechGen receives about 384.4K visits per month and ranks #129,034 worldwide.
Monthly visits
12 monthsTraffic sources
- Search65.6%
- Direct27.5%
- Referrals3.5%
- Social1.9%
- AI assistants1.4%
Top countries
- United States10.3%
- Turkey5.8%
- Vietnam4.7%
- Brazil4.2%
- France4.1%
Estimated from third-party traffic data.
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