Marko
HTML-based templating engine for streaming and async rendering.
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is Marko?
Marko is an HTML-based templating engine that compiles templates to CommonJS modules, supporting streaming, asynchronous rendering, and custom tags. It's designed for high performance in server-rendered applications.
Key differentiator
“Marko stands out with its streaming and asynchronous rendering capabilities, making it ideal for high-performance web applications where efficient data handling is critical.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
Few active contributors and limited third-party resources
Requires understanding of CommonJS modules, streaming concepts, and custom tag creation
Lack of comprehensive tutorials and examples for common use cases
Streaming and asynchronous rendering optimizations are less impactful without server-side rendering
Fit analysis
Who is it for?
✓ Best for
Teams building high-performance web apps who need streaming and async rendering capabilities.
Developers looking to extend HTML syntax for more expressive templates.
✕ Not a fit for
Projects requiring real-time data updates without full page reloads, as it focuses on server-rendered content.
Applications that do not require or benefit from the performance optimizations provided by Marko.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Next step
Get Started with Marko
Step-by-step setup guide with code examples and common gotchas.