Sigma

Sigma is a free Bootstrap 4 HTML5 portfolio template from TemplateMo that showcases images in a metro-style gallery with a responsive lightbox and multiple content columns.

What is the Sigma template?

Sigma (catalog ID 479) is a free HTML CSS website template built on Bootstrap 4, published on TemplateMo in January 2016. The template takes a set of images and text content and renders them as a fluid, metro-tiled gallery page with several content columns, giving visitors a lightbox view of each image. It is distributed as a ZIP file that you can download, edit, and deploy on any standard web host, and it is intended for both commercial and non-commercial projects.

The template's default look is a light gray scheme, and it is tagged as 4-column, portfolio, and gallery. It uses a fluid container so the layout expands to fill the browser width rather than a fixed-width design.

Key Features

• Bootstrap 4 framework — built on Bootstrap 4 (v4.0) with the standard grid system, so the layout is responsive by default.
• Metro-style gallery — images are arranged in a tiled, metro-like grid, fitting many thumbnails into a compact space.
• Responsive lightbox — clicking a gallery image opens it in a lightbox overlay that scales to the viewport.
• Multiple content columns — the page supports multiple columns of content, letting you place text and images side by side.
• Fluid layout — the container is fluid, meaning content stretches across the full width of the browser window.
• 4-column structure — the template is tagged as 4-column, indicating four column segments in its grid arrangement.
• Free commercial use — TemplateMo states you may download, edit, and use Sigma for commercial or non-commercial websites at no cost.
• Easy to customize — because it is plain HTML and CSS on Bootstrap, editing colors, text, and images requires no build tools.

Who is the Sigma template for?

• Photographers who want a gallery-focused portfolio page where each photo opens in a lightbox and the metro grid keeps the page visually dense.
• Agencies and design studios that need a clean, multi-column layout to present project images alongside short descriptions.
• Freelance designers who want a free, editable Bootstrap 4 starting point for client sites and can reuse the gallery and column patterns.
• Students and hobbyists learning responsive web design, since the template is a compact example of bootstrap grids and lightbox behavior.

What can you do with the Sigma template?

• Create a portfolio site: display artwork, photos, or design projects in the metro grid and let visitors view each piece in a lightbox.
• Build a product showcase: use the multiple content columns to pair product images with feature text on the same row.
• Launch a simple event gallery: drop in event photos and use the light gray, unobtrusive background to keep the focus on the images.

Pricing

Sigma is 100% free to download from TemplateMo. There are no license fees for personal, commercial, or client work, and no premium tier is mentioned on the page; the only cost is your time to customize it.

FAQ

Is the Sigma template free?

Yes, TemplateMo states Sigma is 100% free to download. You are allowed to download, edit, and use it for both commercial and non-commercial sites.

What does the Sigma template include?

The ZIP download contains the HTML and CSS files for the Sigma layout, including the metro-style gallery and lightbox functionality. The page does not list additional bundled assets like PHP scripts.

Does Sigma include a contact form?

The template page itself does not show a contact form section. TemplateMo links to a separate "Contact Form PHP Script" on another site, so if you need a form you would add that script yourself.

What kind of layout does Sigma use?

Sigma uses a fluid Bootstrap 4 container, a metro-style image grid, and multiple content columns. It is tagged as 4-column and portfolio, and its default color scheme is light gray.

Who made the Sigma template?

The template is published by TemplateMo, a free CSS template provider. It is part of a series of free templates with catalog numbers around 479.

Alternatives

Other free Bootstrap templates from the same catalog include Strip (482), Elevate (481), Story (480), Accord (478), Puzzle (477), and Conquer (476). For more free HTML templates, TemplateMo also links to Tooplate.com.