Persona.js vs Convai: Which is Better in 2026?
Choosing between Persona.js and Convai comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Convai is our overall pick for AI agents workflows. Pick Persona.js if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Persona.js
Build AI agent experiences directly into your web app
Best for you if:
- • You need something completely free
- • A VanillaJS library for building agentic AI user interfaces.
- • Supports floating, docked, and fullscreen UI layouts for AI agents.
Convai
Create and deploy intelligent, spatially aware conversational AI characters for virtual worlds and games.
Best for you if:
- • Craft and deploy spatially 3D-aware conversational AI characters.
- • Enables lifelike virtual humans with natural language and realistic behaviors.
| At a Glance |  Persona.js |  Convai |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | AI Agents | AI Agents |
Rating | - | - |
Free plan | Yes | Yes |
Choose Persona.js or Convai?
Choose Persona.js if
Build AI agent experiences directly into your web app
- Pure VanillaJS, ensuring broad compatibility and lightweight footprint.
- Offers flexible UI layouts to suit different application needs.
- Strong styling capabilities for seamless brand integration.
- You want a fully free tool (Convai requires payment)
Choose Convai if
Create and deploy intelligent, spatially aware conversational AI characters for virtual worlds and games.
- Enables highly immersive and interactive virtual experiences.
- Supports both no-code creation for creators and robust tools for developers.
- AI characters possess spatial intelligence and multimodal perception.
| Feature | Persona.js | Convai |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | No ratings yet | No ratings yet |
| Categories | AI AgentsDeveloper Tools | AI AgentsNo-Code |
In-Depth Analysis
Persona.js
Build AI agent experiences directly into your web app
Strengths
- +Pure VanillaJS, ensuring broad compatibility and lightweight footprint.
- +Offers flexible UI layouts to suit different application needs.
- +Strong styling capabilities for seamless brand integration.
- +Designed for isolation, preventing style conflicts with host applications.
- +Supports various backend integrations, including custom SSE setups.
Weaknesses
- -Requires some development effort to integrate and configure with existing backends.
- -Relies on WebMCP for agent actions, which might require understanding a new paradigm for some developers.
Key features
Convai
Create and deploy intelligent, spatially aware conversational AI characters for virtual worlds and games.
Strengths
- +Enables highly immersive and interactive virtual experiences.
- +Supports both no-code creation for creators and robust tools for developers.
- +AI characters possess spatial intelligence and multimodal perception.
- +Integrates with leading game engines.
- +Rated #1 by developers for conversational AI.
Weaknesses
- -Pricing information is not publicly available on the website.
- -Specific features beyond high-level descriptions are not detailed.
Key features
Pricing: Persona.js vs Convai
| Plan | Persona.js | Convai |
|---|---|---|
| Tier 1 | N/A | Free Free |
| Tier 2 | N/A | $5/month Basic |
| Tier 3 | N/A | $15/month Pro |
Pricing verified from each vendor's public pricing page. Compare in detail on Persona.js pricing and Convai pricing.
Who Should Use What?
On a budget?
Persona.js is free. Convai is freemium.
Go with: Persona.js
Want the highest-rated option?
Neither has ratings yet.
Too early to call on ratings — compare on features and pricing.
Value user reviews?
Neither has ratings yet.
Too early to call — neither has ratings yet.
3 Questions to Help You Decide
What's your budget?
Persona.js is free. Convai is freemium. Go with Persona.js if free matters most.
What's your use case?
Both are ai agents tools. Compare their specific features to decide.
How important are ratings?
Neither has ratings yet.
Key Takeaways
Convai
- Free tier available
- Our pick for this comparison
Persona.js
- Completely free
The Bottom Line
Convai is our pick. That said, Persona.js is free, hard to beat on price.
Frequently Asked Questions
Is Persona.js or Convai better?
Convai is rated in our evaluation. Persona.js is free and Convai is freemium.
What are Persona.js and Convai used for?
Persona.js: Build AI agent experiences directly into your web app. Convai: Create and deploy intelligent, spatially aware conversational AI characters for virtual worlds and games..
What does Persona.js cost vs Convai?
Persona.js is completely free. Convai is freemium (free tier + paid plans). Visit their websites for detailed pricing.