🔊 Text to Speech Converter
Convert any written text into natural-sounding speech right in your browser using the built-in Speech Synthesis API. This free online text-to-speech tool supports up to 100,000 characters per session, adjustable speech rate from 0.1x to 10x, pitch control from 0 to 2, and lets you upload .txt files for instant reading. No signup, no server uploads, no character limits per day — your text stays entirely on your device.
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📋 When to Use a Text-to-Speech Converter
A text-to-speech tool helps with proofreading — hearing your own writing read aloud often catches typos, awkward phrasing, and run-on sentences that your eyes skip over. It's also useful for language learners who want to hear correct pronunciation, for multitasking when you need to listen to articles or notes while doing something else, and for anyone who finds listening easier than reading for long blocks of text. Content creators can preview how their text will sound in voiceover or dictation contexts.
A couple of honest limits. This tool uses your browser's built-in voices, which vary by operating system and browser — they sound robotic compared to premium neural TTS services. The quality and available languages depend entirely on what your device provides, not on our tool. For professional narration or natural-sounding commercial voiceover, a dedicated TTS service or human recording will give much better results.
⚙️ How the Text-to-Speech Converter Works
This tool uses the Web Speech API's SpeechSynthesis interface, which every major browser supports natively. When you click Speak, your browser takes the text you entered, splits it into manageable utterances, and feeds them to its built-in speech engine — the same engine that powers your operating system's screen reader and accessibility features. No audio is recorded, streamed, or uploaded to any server; the entire process runs locally on your machine.
The Rate slider controls how fast the speech plays. A rate of 1.0x is normal conversational speed. Slower rates (0.5x) are useful for language learners or proofreading; faster rates (up to 10x) work well for quickly skimming through long documents when you only need the gist. The Pitch slider shifts the voice higher or lower without changing the speaking rate — this can make the same voice sound like a different person, which is fun for character voices or for making speech stand out against background noise at a different frequency.
Most browsers break text into chunks of a few hundred characters for synthesis. When you have very long text (over about 15,000 characters), this tool automatically queues and plays each chunk in sequence, pausing briefly between them. Because this is a browser API, there is no per-day character limit and no account needed — you can use it as much as you like, as long as your browser supports it.
How to Use the Text-to-Speech Converter
- Enter or paste your text — Type or paste up to 100,000 characters into the text area. You can also click "Upload .txt File" to load text from a plain text document.
- Choose a voice — Select your preferred voice from the dropdown. Voices are loaded from your operating system and vary by device. If you don't see any voices, make sure your browser supports Speech Synthesis (Chrome, Edge, Safari, and Firefox all do).
- Adjust rate and pitch — Drag the Rate slider (0.1x–10x) to control speech speed, and the Pitch slider (0–2) to adjust voice pitch. Default settings (1x rate, 1 pitch) work well for most use cases.
- Click Speak — Press the Speak button to start playback. The button turns red while speaking. Click Stop or press the Stop button to end playback at any time.
Frequently Asked Questions
Which browsers support text to speech?
All modern browsers support the Web Speech API: Chrome, Edge, Firefox, and Safari. Chrome and Edge typically offer the widest selection of voices, including many language variants and accents. Safari has fewer built-in voices but still works. Internet Explorer does not support Speech Synthesis.
Why is the voice different from what I expected?
The available voices depend entirely on your operating system and browser. Windows, macOS, Android, and Linux each ship with different built-in voices. Windows has Microsoft David, Zira, and Mark; macOS has a range of Apple voices like Samantha and Alex; Android and Linux vary more. The dropdown shows every voice your browser detects — pick the one you like best. Premium or cloud-based TTS voices (like Google Wavenet or Amazon Polly) are not available through this tool because it runs entirely client-side.
Why does speech stop after a few sentences?
Most browsers impose a per-utterance length limit — typically around 200–300 sentences or about 15,000 characters per utterance. This tool automatically splits long text into smaller chunks and queues them one after another. If speech stops unexpectedly, your browser may have reached a different resource limit. Try splitting your text into smaller sections and speaking each one separately. For very long texts (over 50,000 characters), some browsers may pause between chunks.
Can I download the audio as an MP3 file?
No. The Web Speech API does not expose the generated audio as a downloadable stream — it plays directly through your speakers. Because the speech is generated client-side by your browser's engine, there is no audio file to capture. To save speech as audio, you could use your operating system's built-in sound recorder or a browser extension while the speech plays.
What do the rate and pitch controls actually do?
Rate controls speaking speed — 0.1x is extremely slow (useful for language learners), 1x is normal conversational speed, and 10x is very fast (useful for quickly skimming text). Pitch controls the voice's frequency — lower values (0–0.8) make the voice sound deeper, higher values (1.2–2) make it sound higher-pitched. Pitch does not affect playback speed, so you can have a deep slow voice or a high fast voice — the two controls work independently.
Is it really free with no limits?
Yes. This tool is 100% free with no account required, no daily character caps, and no hidden limits beyond the 100,000-character single-session input limit (which prevents browser performance issues with extremely long texts). Because everything runs in your browser using the built-in Speech Synthesis API, there are no server costs or third-party API calls — so there's no reason to limit your usage. Use it as much as you like.