JetBlack FSE
JetBlack FSE is free Block based theme for full site editing. It is first full site editing theme by FireFly Themes. This theme is packed with ready to use blog pattern, you will just have to drag and
The facts
- Active installs
- 200+
- Price
- Free
- Last updated
- 20 May 2026
- Requires WP
- 6.1
- Requires PHP
- 7.4
- Downloads
- 10,174
Our analysis
AI-assistedJetBlack FSE is a free WordPress theme designed for full site editing using the block editor. It features a dark, multipurpose design with various customizable block patterns and templates, allowing users to create modern websites easily.
The theme includes ready-to-use blog patterns, template parts, and templates that can be dragged and dropped into place. It is suitable for any kind of business and adapts well to different screen sizes.
Best for: This theme suits users looking to create a modern website with full site editing capabilities.
What it does well
- ✓Free to use from the WordPress.org directory
- ✓Includes multiple customizable block patterns and templates
- ✓Designed for full site editing with a clean interface
- ✓Responsive design adapts to various screen sizes
- ✓Suitable for a wide range of business types
Where it falls short
- •Rating not published
- •Limited information on specific features and performance
Verdict
JetBlack FSE provides a solid foundation for building customizable websites, though more detailed user feedback would be beneficial.
From the developer
Firefly Themes's own description of JetBlack FSE, lightly tidied.
JetBlack FSE is free Block based theme for full site editing. It is first full site editing theme by FireFly Themes. This theme is packed with ready to use blog pattern, you will just have to drag and drop pattern to desired area. There are also various template parts and templates available in theme. JetBlack FSE is multipurpose dark theme, with different customizable patterns you can build a modern website in few clicks.
The theme is suitable for any kind of business and is very flexible. JetBlack FSE has clean design with updated secure codes. There are 3 Template parts, 9 Templates12 different block patterns. Some of block patterns are, 404 Error Page, Archive Title, Default Footer, Default Header, Hero Content, Latest News, Main Banner, Post Title, Recent Works, Services, Sidebar and What We Do.
All the block patterns, templates and template parts are highly customizable and beautifully adapts all screen sizes. Do download JetBlack FSE today and explore word of Full site editing.