AI Text to Speech Online
5,000+ realistic voices · 150 languages · MP3, WAV, FLAC — try 1,000 chars free. No watermark.
What is SpeechGen?
SpeechGen is an online AI voice generator with 5,000+ realistic voices. Built on the world's leading neural synthesis infrastructure, this text to voice AI handles anything — from a single sentence to an entire book.
Available in 150 languages, with downloads in MP3, WAV, and FLAC. Pay as you go — buy credits when you need them, use them at your own pace. Start free: 1,000 characters with no account required.
How to Convert Text to Speech in 3 Steps
No software to install. Works in your browser — paste, pick, download.
Type or paste your text
Type to speech directly — or paste up to 1,000,000 characters. Upload DOCX, PDF, or SRT files.
Choose a voice & language
5,000+ voices in 150 languages. Filter by gender, accent, quality tier — Standard, HD, or PRO.
Convert Text to MP3, WAV, or FLAC
Processing time scales with text length — a short clip is done in moments, a long narration takes longer. Download starts the moment your file is ready. No watermark, no sign-up required for the first 1,000 characters.
Who Uses AI Text to Speech — Real Problems, Real Results
2,051 projects. 792 companies. 146 languages. 22 industries (agency & studio, manufacturing, education, SaaS, healthcare, e-commerce, media, finance, NGO, logistics, and more).
Need an AI voiceover — without a voice actor
Marketers and production teams where the voice talent budget doesn't fit the sprint — or the deadline.
Teach at scale — without being in every classroom
Instructional designers, trainers, professors — anyone who needs to scale their voice to hundreds of students.
People call — and nobody picks up
Dental clinics, car shops, notaries, vet clinics — small businesses losing customers on inbound calls.
Visitors stand before the exhibit — and don't know what they're looking at
Museums, campuses, wineries, heritage sites — physical spaces that need a voice.
Workers on the floor don't read safety briefs
Safety engineers with crews from different countries, language barriers, field conditions — paper doesn't work.
Selling abroad — without hiring a local narrator
Companies entering foreign markets — need a local voice, but have no local budget.
6 Features That Make SpeechGen Different
No buried menus. No settings rabbit holes. This AI speech generator keeps every tool one click away — right on the toolbar.
Smart Cache — re-generate for free
Fix a typo, proof out loud, tweak a word. SpeechGen tracks your last synthesis — regenerate identical content and nothing gets deducted.
Upload a book, get a file per chapter
Type <cut> on its own line — each segment exports as a separate audio file. No audio editor, no manual splitting.
Complete audio production in one tab
Pick from the built-in AI music library or upload your own. Mix voice and background music at the right levels — without leaving SpeechGen.
Multiple speakers, one file
Assign different voices to different paragraphs using <Name> tags. Interviews, characters, training scripts — one export.
Control every pause, stress, and pitch
Insert SSML tags directly in your text: pause for exactly 1 second with <break time="1s"/>, or add a sound effect with <sound id="4807" name="assistant"/>.
Audition 5,000+ voices before spending a character
Dial in voice, speed, and pitch — preview any combination with your own text before converting. No characters deducted on samples.
These 6 are just the highlights. SpeechGen comes with detailed documentation — interactive audio demos, real-world examples, and walkthroughs for every feature and edge case. Most TTS services ship a one-pager. We built a full knowledge base.
Explore full documentation & examplesBuilt-in Tools
Everything you need to get audio from any source — without leaving SpeechGen.
SRT / VTT to Synced Audio
Upload a subtitle file — each line is voiced at its exact timecode. Drop the audio straight into your video editor, already synced.
Try SRT converter →Try Before You Pay — No Commitment Required
Most text-to-speech tools require a monthly subscription before you can evaluate their quality. SpeechGen is pay-as-you-go — start with 1,000 characters, no account needed. When you're ready, buy only what you need. Credits don't expire on a monthly cycle.
SpeechGen vs Typical TTS Service
| SpeechGen | Typical TTS | |
|---|---|---|
| Pricing model | Pay-as-you-go — pay only for what you use | Monthly subscription required |
| Credits expire | 365 days from purchase | Monthly — unused credits lost |
| Smart Cache | Re-generate at zero cost (same text = no charge) | Every generation costs credits |
| Background music | Built-in AI library, included | Not available or paid add-on |
| Multi-voice dialogue | Unlimited speakers per file | 1 voice per generation |
| Watermarks | None — even on free tier | Watermarked on free plan |
All packs include: commercial license, API access, all voices, smart caching, 30-day history.
Trusted by 70,000 Teams Across 22 Industries
From solo creators to enterprise localization pipelines — SpeechGen handles the full spectrum.
"We localized a campaign video to 12 markets in one afternoon — same SRT file, different voice per language. Before this, we spent two weeks coordinating freelance narrators."
"90 cognitive exercises, 2 languages, 3 months of daily content — generated from one script with [cut] tags. Students couldn't tell it wasn't human."
"Our 950+ labs now have the same voice, same tone, same standard. Patients hear consistency everywhere — and it cost us less than one voice actor session."
"We needed a bilingual phone system — callers choose English or Spanish before anything else. Five clinics, all consistent. We update the messages ourselves in under a minute."
"Our winery audio tour runs in three languages — two narrator voices, background music, 45 minutes of content. We produced everything in one afternoon. No recording booth, no contractors."
"3,000+ dental terminology recordings in Japanese, batch-generated via API in a few hours. Correct pronunciation, consistent tone across every term. The same job would have taken a studio weeks to quote."
Download MP3, WAV, FLAC — Any Format, Any Bitrate
Convert text to audio in three quality tiers — pick the format that fits your project.
Standard
Reliable everyday synthesis. Internal docs, drafts, bulk content.
Pro
Enhanced neural voices with natural intonation. YouTube, e-learning, marketing.
HD
Studio-grade AI voices with lifelike emotion. Broadcast, premium video narration.
Why SpeechGen Instead of a Recording Studio
Professional voice talent has its place. But for high-volume, iterative, or multilingual production — AI text-to-speech wins on speed, cost, and flexibility.
| The Old Way | With SpeechGen | |
|---|---|---|
| Cost | $150–$400 per finished hour | From $0.008 per 1,000 chars |
| Turnaround | 2–5 business days | Audio ready in seconds |
| Revisions | Re-booking & re-recording | Only changed lines re-generate |
SpeechGen doesn't replace every use of professional voice talent. But for high-volume, iterative, or multilingual production — it's faster, cheaper, and always available.
Frequently Asked Questions
Yes — paste your text, pick a voice, and click "Convert to Speech." You get 1,000 characters instantly, no sign-up, no credit card, no watermarks. Register for free and your daily limit grows to 3,000 characters that renew every day for 7 days.
Yes — it's a free AI voice generator download in MP3, WAV, or any supported format. Register to get 3,000 characters daily for 7 days, no credit card required.
Paste your text, select a voice, and click Convert to Speech. Your file is ready in seconds — download as MP3, WAV, FLAC, or OGG. The first 1,000 characters are completely free, no account needed. Come back daily for a fresh balance.
Up to 2 million characters per generation. You can paste entire books, long scripts, or documentation — SpeechGen handles it. For very long texts, the system automatically splits them into manageable segments.
MP3, WAV, FLAC, OGG, or OPUS. Choose bitrates from 8 kHz (telephony) to 320 kbps (studio). WAV gives you uncompressed audio for post-production in Premiere, DaVinci, or any DAW.
Yes. Use Dialog mode — add speakers, highlight each person's lines, and SpeechGen merges all voices into a single file. Great for conversations, interviews, audiobooks with characters, and explainer videos.
Yes. Paste an article, document, or book — hear it spoken in over 150 languages. Upload PDF or DOCX files directly, or use the REST API to integrate text reading into your workflow.
Yes. A commercial license is included with every plan — free and paid. You own the audio files you create and can use them in YouTube videos, ads, apps, e-learning courses, and any other project.
Yes — generate a voiceover, download MP3 or WAV, and drop it into any editor: Premiere Pro, DaVinci Resolve, CapCut, Final Cut Pro, iMovie, or Camtasia. Commercial license included, no watermarks. For animation, use Dialog mode to assign different voices to characters.
Neural networks trained on real human voice recordings learn pronunciation, intonation, and rhythm — then generate new speech from any text. SpeechGen offers Standard, Pro, and HD tiers depending on the underlying neural model.
SpeechGen handles up to 2 million characters per project — paste an entire book, script, or document and get studio-quality audio. Batch processing, smart caching, and background music let you produce finished content without switching tools.
150+ Languages — AI Text to Speech in Any Language
Generate natural AI voiceovers in 150+ languages and regional accents. Click any language to explore voices.
Start Converting Text to Speech — Right Now
The interface is at the top of this page. Paste your text, pick a voice, hit Convert.
700,000,000 files generated. 1,000,000 users. Pay-as-you-go — no monthly fees.