Building tools that speak

We make apps
with soul

Stringcode OÜ — a small studio in Tallinn, Estonia, crafting AI-powered tools and playful experiences.

Stellai

Your AI voice companion

Transform your voice into any of 250+ celebrity and professional voices. Text-to-speech, dubbing in 29 languages, voice isolation, and AI sound effects — all in one app.

Stellai
Your AI voice companion
🎙
Voice Changer
💬
Text to Speech
🌍
Dubbing Studio
🔊
Sound Effects
250+
AI Voices
29
Languages
1M+
Downloads
🎙

Voice Changer

Record or upload audio and transform it into any of 250+ celebrity and professional voices instantly.

💬

Text to Speech

Type anything and hear it spoken in realistic AI voices. Perfect for narration, audiobooks, and content creation.

🌍

AI Dubbing

Translate your audio into any of 29 languages while preserving the original voice quality and tone.

Voice Isolation

Remove background noise and extract clean vocals from any recording with AI-powered isolation.

🔊

Sound Effects

Describe what you need and AI creates custom sound effects for videos, podcasts, or games.

250+ Voices

Browse a massive library of celebrity impressions and professional narrator voices for any project.

🐧

I'm The Penguin

A nihilist penguin walks toward the mountains. He doesn't know why. Neither do you. Play anyway.

Play the game →