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Cover image for πŸŽ™οΈ Build a Realistic Voice TTS Web App (No API Key Needed, Works Offline!)
Naman Sachdeva
Naman Sachdeva

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πŸŽ™οΈ Build a Realistic Voice TTS Web App (No API Key Needed, Works Offline!)

These days, TTS tools are everywhere β€” but most need API keys, accounts, or sound robotic.

So I built a fully offline TTS (Text-to-Speech) web app using just HTML, CSS & JavaScript β€” no frameworks, no libraries, and no API required!

🎯 Try It Out:

Live Demo: [https://naman9104.github.io/TTS/]

GitHub Source Code: [https://github.com/naman9104/TTS]

βš™οΈ Features:
Choose from multiple available voices

Set custom pitch and rate

Type text and speak it instantly

Works offline on most browsers

Clean glassmorphism UI

πŸ”§ How It's Built:
HTML for structure

CSS with a polished glassmorphism look

Vanilla JS using built-in SpeechSynthesisUtterance

No API calls. No data usage. Just open the page and start listening.

πŸ’‘ Why I Made This:
I noticed many TTS tools ask for API keys or sound robotic. I wanted something:

Lightweight

Offline

Clean UI

Beginner-friendly

This is perfect for students, teachers, or anyone who wants to convert text into speech easily.

⭐ Like the project?
Star it on GitHub, it really helps πŸ™Œ
Comments and feedback are welcome!

Top comments (7)

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naman_sachdeva profile image
Naman Sachdeva

πŸ’¬ Want to see something added?
Drop your suggestions in the comments β€” I’d love to improve this project based on your ideas!

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dev_nazwashabrina profile image
Nazwa Shabrina Zain

The web application works well, unfortunately the color of the letters displayed is the same as the one on the screen so the contrast and color selection also affect the reading quality.

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naman_sachdeva profile image
Naman Sachdeva

Thanks so much for pointing that out! πŸ™
You’re absolutely right β€” I’ll update the colors to improve contrast and make the text more readable.
Appreciate you testing it and giving feedback β€” means a lot! πŸ˜„

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naman_sachdeva profile image
Naman Sachdeva

Hey! I just updated the code with better contrast and readability β€” thanks again for the feedback! πŸ˜„ Feel free to check it out, and if you find it useful, do consider starring the repo ⭐

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dev_nazwashabrina profile image
Nazwa Shabrina Zain

Thanks for fixing it. If I have some free time, I'll take a look at your repo and create a new issue that might be relevant to your project to develop.

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dotallio profile image
Dotallio

Really like how easy it is to use right away and the clean look. Does the offline mode work smoothly across all browsers or have you noticed any quirks?

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naman_sachdeva profile image
Naman Sachdeva

Thanks a lot,Really glad you found it clean and easy to use πŸ™Œ

I’ve mostly tested it on Chrome (desktop and Android), where it works completely offline without any issues. Haven’t done full cross-browser testing yet β€” so if you spot anything odd on your end, I’d love to hear about it.

Planning to expand browser support step by step, and feedback like this really helps shape that!

Feel free to check out my Dev.to profile β€” been building some fun little tools recently, would love to hear what you think!