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TTS Online

Commercial use OK 380+ models No watermark No sign-up needed
Model:
+ GPT-5, Claude, Gemini
174 natural AI voices across 37 languages. Type or paste text, pick a voice, and download a WAV file in seconds. Cost scales exactly with character count and the voice you pick — we quote you the token cost live as you type, before you hit generate.
0 / 5000 characters · 0 sentences Sign up free for 6× more → Cost updates live based on voice + length
Kokoro is our default — fast, natural reads. Voices auto-map to the best engine.
Live token cost
Start typing to see your cost for the selected voice.
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Show SSML tags
SSML tag cheatsheet: <break time="500ms"/> — silence / pause <prosody rate="slow" pitch="high">text</prosody> — control speed/pitch per section <emphasis level="strong">text</emphasis> — stress a word <say-as interpret-as="date">01/15/2026</say-as> — pronounce as date / number / telephone <sub alias="World Wide Web">WWW</sub> — read abbreviations correctly
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What you can make with AI voices

YouTube narration

Narrate shorts, documentaries, explainers. Kokoro handles long reads without seams; pair with the video tools to dub + caption.

Audiobooks & podcasts

Turn a blog post, transcript, or PDF into a listenable MP3. Toggle long-form stitching for chapter-scale output.

Ads & voiceovers

Pick Chatterbox for expressive reads. 30-second ad scripts cost ~150 tokens — a fraction of ElevenLabs-grade pricing.

Language learning

Hear any passage in native-sounding speech across 37 languages. Adjust speed 0.5×-2× to drill pronunciation.

Game dialogue

Prototype NPC dialogue with character voices. Dia handles multi-speaker scenes; pair emotion + pitch for villains and heroes.

Accessibility

Read-aloud for long articles, form fields, product copy. WAV export lands in any screen-reader pipeline.

How Free.ai TTS compares

What you get Free.ai ElevenLabs Play.ht Murf.ai
Free daily usage5K+ chars/day10K chars / month2.5K words10 minutes
Voices included17432~900 (premium paywall)120+
Languages373214220+
SSML support
Voice cloning includedFree$22+/mo$39+/moEnterprise
Public API
Open-source engines Kokoro, Piper, Dia…———
Sign-up requiredNoYesYesYes
Competitor figures reflect publicly listed free tiers as of 2026. Check each provider for current plan terms.
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Result
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Want better results? Premium models (GPT-5, Claude, Gemini) deliver higher quality. View Plans

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Free TTS tool powered by Kokoro, Piper, and Chatterbox engines. 174 voices, 37 languages. Speed, pitch, emotion controls. Export WAV or MP3.

How to Use TTS Online

1
Enter your input

Type text, upload a file, or describe what you want. No account needed.

2
Click generate

Our AI processes your request in seconds using the best open-source models.

3
Download & share

Download, copy, or share your result. Free for personal and commercial use.

Use this tool via API

Automate this tool from your own code. OpenAI-compatible REST endpoint, Bearer-token auth, no extra SDK required. Token costs match the web interface.

API Documentation Get API Key 
curl -X POST https://api.free.ai/v1/tts/ \
  -H "Authorization: Bearer sk-free-..." \
  -H "Content-Type: application/json" \
  -d '{"text": "Hello from Free.ai", "voice": "af_heart", "model": "kokoro"}'

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TTS Online — FAQ

TTS (Text-to-Speech) is AI technology that converts written text into spoken audio. Free.ai offers TTS with 174 voices across 37 languages, powered by open-source models.

Yes. Get 2,500 free tokens per day without an account, or 30,000/day with a free account. TTS costs ~100 tokens per sentence, so you can run dozens of clips per day for free.

Kokoro (fastest, default), Piper (lightweight), MeloTTS (multilingual), Chatterbox (expressive), F5-TTS (high-fidelity cloning), Dia (dialogue), OuteTTS, Qwen3-TTS, and OpenVoice.

Yes. Full control over speed (0.5x–2.0x), pitch (-10 to +10), and emotion (happy, sad, angry, whisper, excited) on any TTS voice.

TTS audio is delivered as WAV by default. You can convert to MP3, OGG, or other formats with any audio tool.

174 TTS voices across male, female, and neutral styles in 37 languages — English, Spanish, French, German, Japanese, Chinese, Hindi, Arabic, and many more.

Yes. The Free.ai TTS API is OpenAI-compatible — POST to /v1/audio/speech and receive a TTS audio file. Use any language that can send HTTP requests.

Kokoro for natural reads, Chatterbox for expressive or emotional delivery, Dia for dialogue/multi-speaker, F5-TTS or OpenVoice for voice cloning, Piper when you need lightweight output.

Yes. Kokoro TTS auto-detects SSML — use <break>, <prosody>, <emphasis>, <say-as>, and <sub> tags to fine-tune pacing, pronunciation, and emphasis.

Most TTS requests complete in 1–3 seconds on our GPUs. Long-form audiobook-length inputs can take 10–30 seconds depending on the engine.

Yes. All TTS engines are open-source with permissive licenses. The generated audio is royalty-free for YouTube, ads, apps, games, and commercial work.

Up to 5,000 characters per TTS generation for signed-in users (500 for guests). For longer pieces, the Audiobook Creator at /voice/audiobook/ chunks and stitches automatically.

Sign up free for 10,000 tokens

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