Open Source Infrastructure for Research
Focus on your research,
STELLA handles the rest.
STELLA lets researchers run voice conversations with participants—interviews, digital interventions, guided dialogues. Design the conversation without code, then run it on your own hardware with a single command.
Developed by researchers from
For the whole spectrum of voice research
Whatever the conversation, STELLA runs it—on your terms
Qualitative Research
Run consistent, scalable voice interviews. Every participant gets the same well-designed conversation, captured as full transcripts in their own words.
Digital Interventions
Deliver motivational interviewing, coaching, and recurring check-ins that guide participants through behavior change—at any scale.
Leading Conversations
Guide participants through screenings, structured surveys, and goal-directed dialogues where order and completeness matter.
Everything you need to run voice studies
From designing the conversation to capturing the data—built for researchers, no technical background required
Quick Start
Run it on your own hardware—no technical background, just one command
Get STELLA
Clone the repository onto your own computer or server
Run One Command
The setup wizard runs on first launch—no technical background needed
Configure Anytime
Keys, environments and backups are all handled through our scripts
Choose Your Agent
Start with a ready-made conversation engine—or build your own
Let participants talk to
your research agent
Design the conversation, run it on your hardware, and share a link. It's that simple.