Text to MP3
Turn text into a spoken MP3 with a natural voice, made on your device with no limits. Free, with no account or uploads.
Text to MP3
Paste your text, choose a voice, and download it as an MP3 file. The voice runs on your device; your text is never sent anywhere.
No words yet
English only for now: the voices read American or British English.
How it is read
The voice runs on your device. The first time, it is downloaded from KeepSimp (116.07 MB) and kept by your browser.
1 is the voice's own pace. From half as fast to twice as fast.
Silence added after each sentence.
Silence added after each paragraph and heading.
MP3 plays everywhere. WAV is lossless and larger.
Each sentence timed exactly, at most two lines of 42 letters and seven seconds.
−16 LUFS with peaks under −1 dBTP, as Apple Podcasts asks of spoken word.
Written into the MP3, for a Markdown or Word file with headings. Apple's apps read another kind of chapter.
Headings are kept, marks and links are read as their words, and code is left out.
- PrivateThe voice runs in this browser. Your text never leaves your device.
- Works offlineAfter the first time, the voice is kept and nothing more is downloaded.
- Hear it at onceIt starts reading while the rest is still being made.
A little help along the way
Follow these steps. Every option is explained underneath. The voice runs in your browser; your text is never sent anywhere.
- Add your textType or paste it into the box, or press Open a document for a text file (.txt), a Markdown file (.md) or a Word file (.docx). Under the box you see how many words it has and about how long it will take to say.
- Say what it is forListen to a document reads a little quicker than talking pace. Video voice-over reads at talking pace, evens the loudness and adds subtitles. Audiobook leaves longer pauses between paragraphs and writes a chapter for each heading.
- Choose a voicePress the play button beside a voice to hear it say a sentence; it is made on your device. There are nine voices, six with an American accent and three with a British one.
- Make speechPress Make speech. The first time, the voice's files are downloaded from KeepSimp and kept by your browser; after that it starts at once. It starts reading while the rest is still being made, and Stop halts it within a sentence.
- DownloadWhen it is ready, the result says how long it is, how many words and which voice. Press Download for the MP3 (or WAV), and the subtitles too when you chose them. Each file is opened again and checked before it is offered.
Questions people ask
- Is there a limit on how much text I can turn into an MP3?
- There is no character limit and no account. The box takes about 120,000 characters at a time, around two hours of speech, because the sound is made and kept in your browser; longer books can be done a part at a time.
- Is my text uploaded to make the MP3?
- No. The voice, Kokoro, runs in your browser, and the MP3 is written there too. The first time, the voice's files (about 120 MB) are downloaded from KeepSimp itself and kept by your browser; your text never leaves your device.
- Can I use the MP3 in a video or a podcast?
- Yes. Kokoro's model is released under the Apache 2.0 licence, which allows commercial use. Choose Video voice-over for an even loudness and subtitles timed to each sentence. It is a computer-made voice and can mispronounce names, numbers and abbreviations, so listen before you publish.
This page is the Text to speech, opened for this one job; every other tool it has is one press away. Each of its settings is explained on the Text to speech's own page.
Read the step-by-step guide