The best creative work deserves a website that can keep up with it. A site that is visually stunning yet fast. Infinitely flexible yet organized. Effortless to build yet professional enough to stand alongside anything on the web. For over a decade, one WordPress theme has delivered on all of those promises — and earned its reputation as the most refined, most detail-obsessed creative theme available.

With over 47,000 sales on ThemeForest, consistently among the highest-rated themes on the market, and trusted by tens of thousands of designers, developers, agencies, and creative professionals worldwide — Kalium by Laborator is the definitive creative multipurpose WordPress and WooCommerce theme. Elegant above the surface. Extraordinarily powerful underneath. Free of the clichés that make so many themes look the same.

What Is Kalium?

Kalium is a premium creative multipurpose WordPress and WooCommerce theme by Laborator — a design-first team who built Kalium to reflect their own standards as designers and developers, not merely to compete in a crowded marketplace. The result is a theme defined by clean lines, meaningful white space, purposeful typography, and smooth interactions that enhance rather than distract from content — a design sensibility so consistently executed that Kalium has earned recognition from AWWWARDS and is cited by users as one of the most distinctive visual experiences available on ThemeForest.

Behind that refined exterior is a feature set comprehensive enough to build any website imaginable — business, portfolio, agency, photography, fashion store, restaurant, hotel, medical practice, architecture firm, fitness studio, education platform, bookstore, SaaS product, personal blog, and dozens of other site types — all powered by your choice of the world’s leading page builders, packed with premium plugins included free, and backed by one of the most consistently praised support teams in the WordPress ecosystem.

Key Features

Three Page Builders Supported — Elementor, WPBakery & Gutenberg

Kalium gives you the freedom to build with the page builder you already know and love — or to start fresh with the builder that best suits your workflow. Full support is provided for all three of the most widely used WordPress page builders: Elementor — the world’s most popular visual drag-and-drop builder with a rich widget library and template system; WPBakery Page Builder — a powerful, professional builder trusted by hundreds of thousands of developers and agencies, included free within the Kalium package; and Gutenberg — WordPress’s native block editor, fully styled and supported within Kalium’s design framework. Build any page on your site using your preferred builder — or mix builders across different pages — with Kalium providing consistent, beautiful styling across all three.

25+ Starter Sites — One-Click Complete Demo Import

Launch a fully designed, fully populated website in minutes using Kalium’s one-click demo import system — covering over 25 professionally designed starter sites for a wide range of industries and creative disciplines. Each starter site imports everything — pages, posts, sliders, navigation menus, widgets, theme options, and all supporting content — in a single operation that sets up a complete website ready to replace with your own content. Starter site categories include fashion store, photography, portfolio, agency, architecture, restaurant, hotel, medical, dental, construction, wedding, fitness, travel agency, bookstore, lawyer, education, automotive, blog, SaaS, startup, resume, barber, therapist, podcast, yoga, finance, marketing, consulting, and personal website layouts. New starter sites are continuously added — and every new starter site added in the future is available to all Kalium users at no additional cost.

Header Builder — Complete Custom Header Design

Design your site’s header with pixel-perfect precision using Kalium’s intuitive drag-and-drop Header Builder — choosing from multiple pre-built professional header layouts or building an entirely custom header that reflects your brand identity. Header elements available in the builder include logo, navigation menu, shopping cart icon, search bar, social icons, custom HTML content, utility menu, and more — all positionable in a flexible grid system that supports multi-row header structures with complete control over height, background, typography, and mobile behavior. The header builder outputs clean, performant code and responds correctly across all device sizes — delivering a header that looks intentional and refined at every viewport width.

Footer Builder — Custom Footer Design

Build a custom footer layout with the same visual builder approach used for headers — defining the number of columns, adding footer widgets, links, social icons, copyright text, and custom HTML blocks in a drag-and-drop interface that lets you design a footer perfectly matched to your site’s overall aesthetic. Pre-built footer layouts provide instant professional starting points — fully customizable from there to match your specific content requirements and brand design.

Premium Plugins Included Free — Exceptional Value

Kalium bundles a carefully selected set of premium plugins within the theme package — saving you hundreds of dollars compared to purchasing them separately — and ensuring that these plugins are always updated to their latest versions as part of every Kalium update. Included premium plugins are: WPBakery Page Builder (professional page builder), Revolution Slider (premium slider and hero section builder), LayerSlider (advanced animation-rich slider), Advanced Custom Fields PRO (the industry-standard custom field plugin for WordPress), WooCommerce Product Filter (advanced Ajax product filtering for WooCommerce stores), and WooCommerce Product Size Guide (integrated size guide management for fashion and apparel stores). Together, these bundled plugins represent exceptional value — tools that would cost significantly more than the theme price itself if purchased separately on the open market.

WooCommerce Integration — Professional eCommerce Design

Kalium’s WooCommerce integration is thoughtfully designed to give any online store a shopping experience that feels premium, curated, and distinctly on-brand — not like a generic WooCommerce installation with a theme skin. Shop page layout options include columned grid layouts and list layouts, with rich sidebar filter options powered by the included WooCommerce Product Filter plugin for Ajax-powered, no-reload product filtering by category, price range, attribute, and tag. Single product page design is carefully crafted — with clean image galleries, clear pricing and availability presentation, and the included Product Size Guide plugin adding professional size chart functionality for fashion and apparel products. The cart, checkout, and account pages are all styled cohesively within Kalium’s design system — creating a seamless visual journey from product discovery to completed purchase that reflects positively on your brand at every step.

17,000+ Fonts — Ultimate Typography Management

Kalium’s font management system is one of the most comprehensive available in any WordPress theme — providing access to over 17,000 fonts from six different font library sources: Google Fonts, Adobe Fonts (Typekit), Font Squirrel, Fontello, the Kalium Premium Font collection (custom-curated exclusive fonts), and the ability to upload completely custom self-hosted fonts in any web font format. Each font library is searchable and previewable within the theme’s font management interface — allowing you to identify the perfect typeface combination for your brand’s identity before applying it site-wide. Kalium supports independent font selections for headings, body text, navigation, and UI elements — with full control over font weight, style, size, letter spacing, line height, and text transform at every level of the typographic hierarchy.

Unique Portfolio Types — Stunning Creative Showcases

Portfolio presentation is one of Kalium’s defining strengths — and one of the primary reasons creative professionals choose it above all other themes. Kalium provides multiple unique portfolio types with unlimited styling options — each offering a distinct visual approach to showcasing creative work. Portfolio grid options include standard grid, masonry, justified mosaic, fullscreen portfolio, horizontal scrolling portfolio, and more. Individual portfolio item pages support rich media — full-bleed image galleries, video embeds, before-and-after image comparisons, and custom content layouts built with your chosen page builder. The combination of portfolio grid variety and individual project page flexibility means any creative professional — photographer, designer, architect, illustrator, developer, agency — can build a portfolio that genuinely reflects their aesthetic sensibility rather than conforming to a generic template structure.

Blog — Multiple Post Formats & Layouts

Kalium’s blogging functionality extends well beyond standard WordPress post support — providing multiple blog page layouts, a wide variety of post types, and a rich typographic and visual reading experience. Blog listing page layouts include standard, masonry, list, and magazine-style arrangements — with configurable sidebar options and pagination styles. Individual post types include standard, image, video, audio, gallery, link, and quote post formats — each styled distinctively to present its media type in the most appropriate visual form. The resulting reading experience is clean, elegant, and consistently on-brand — matching the quality of the wider site design rather than defaulting to the plain post style common in multipurpose themes where blogging is an afterthought.

WCAG 2.0 Accessibility — AA Level Compliance

Kalium is built to meet WCAG 2.0 AA accessibility standards — ensuring that sites built on the theme are usable by visitors with visual, motor, and cognitive disabilities. Accessibility compliance includes correct semantic HTML structure, sufficient color contrast ratios, keyboard navigation support, proper ARIA labeling on interactive elements, focus management, and screen reader compatibility. WCAG 2.0 AA compliance is increasingly important for legal compliance in many markets — particularly for public sector, educational, medical, and financial websites — and Kalium’s built-in accessibility foundation means you are starting from a strong base without the custom development that accessibility retrofitting normally requires.

WPML Certified — Multilingual & RTL Ready

Kalium holds WPML Certified status — meaning it has been rigorously tested and verified by the WPML team for complete multilingual compatibility. Every translatable string in the theme is properly internationalized and accessible to WPML’s translation management system — making the setup and management of a multilingual Kalium site as smooth as the WPML plugin allows. Kalium is also pre-translated in 18 languages — Albanian, Danish, Dutch, Finnish, French, German, Greek, Italian, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Spanish, Swedish, and Turkish — contributed by the theme’s global user community, with full translation file support (.po and .mo) for straightforward translation to any additional language using standard WordPress translation tools. RTL (right-to-left) language support is included for Arabic, Hebrew, Persian, and other RTL languages — with the portfolio image slider and all layout elements correctly mirrored for RTL reading direction.

Custom CSS / LESS / SASS — Per-Breakpoint Code Control

For designers and developers who want to apply custom styles beyond what Kalium’s extensive theme options cover, a dedicated Custom CSS tab in Theme Options accepts standard CSS, LESS, or SASS syntax — with separate code input fields for each responsive breakpoint (desktop, tablet, and mobile). Writing breakpoint-specific custom styles directly in the theme options eliminates the need for separate media queries in your custom code — simply enter the styles for each device size in the appropriate tab and Kalium compiles and outputs them correctly. This approach is cleaner, more maintainable, and more accessible to designers without deep CSS media query knowledge than a single custom CSS input field that requires manual breakpoint management.

Revolution Slider & LayerSlider — Premium Sliders Included

Two of the most feature-rich slider and hero section plugins available for WordPress are included free in the Kalium theme package — Revolution Slider and LayerSlider. Revolution Slider provides a comprehensive visual slider editor with animated layers, video backgrounds, scene transitions, and full responsive behavior — the standard choice for professional hero sections and promotional banners. LayerSlider adds advanced animation capabilities with its timeline-based animation editor — supporting complex, precisely choreographed multi-layer animations that go beyond what standard slider plugins can achieve. Having both sliders available gives you complete flexibility to choose the right tool for each specific creative requirement — using Revolution Slider for marketing-oriented hero sections and LayerSlider for animation-rich creative showcases.

Smooth & Purposeful Animations

Kalium’s approach to animation reflects the same philosophy that defines its overall design — purposeful, restrained, and enhancing rather than distracting. Smooth scroll, page transition effects, and element entrance animations are all implemented with careful attention to timing, easing, and visual weight — creating a flowing, cohesive browsing experience that feels considered and professional without the overwrought animation that makes so many theme demos feel exhausting to browse. The GSAP animation library powers Kalium’s custom animations — ensuring cross-browser consistency and smooth 60fps performance even on complex animated sequences.

SEO Optimized — Built for Search Visibility

Kalium is designed and developed with current SEO best practices at every level — from clean semantic HTML5 markup and correct heading hierarchy to optimized asset loading, schema markup support, and Structured Data management via a dedicated theme-level hook for developers who need fine-grained control over how schema data is output on each page type. The theme is fully compatible with Yoast SEO and Rank Math — with all meta fields, Open Graph data, and schema output working correctly across all page templates. Every aspect of the theme’s code structure — from the clean HTML output to the efficiently loaded CSS and JavaScript assets — contributes to the technical SEO foundation that search engines reward.

Performance Optimized — Fast Loading & Core Web Vitals Ready

Kalium is engineered with performance as a first-class concern — delivering impressive page speed results and strong Core Web Vitals scores that meet Google’s requirements for search ranking consideration and visitor experience quality. The theme’s architecture prioritizes lean HTML output, efficient CSS loading, deferred JavaScript, and optimized image handling — keeping page weight low without sacrificing visual quality or feature depth. Compatibility with all major WordPress caching and performance plugins — WP Rocket, LiteSpeed Cache, W3 Total Cache, Autoptimize, and others — ensures that your chosen performance optimization stack integrates correctly with Kalium’s output for maximum page speed results.

Advanced Custom Fields PRO — Included Free

Advanced Custom Fields PRO — the most widely used and trusted custom field plugin for WordPress, with a commercial license typically costing separately — is included free within the Kalium theme package. ACF PRO allows you to add custom fields to any WordPress post type — products, portfolio items, pages, posts, and custom post types — creating structured data storage for any information your site needs to capture and display beyond WordPress’s default fields. For agencies and developers building complex client sites on Kalium, the included ACF PRO license eliminates a significant per-project plugin cost while providing the custom data architecture capabilities that professional site builds require.

GDPR Privacy & EU Compliance

Kalium includes built-in support for GDPR compliance and EU privacy regulations through a consent model that gives website visitors appropriate control over their data and cookie preferences. The theme provides full control of data and privacy in accordance with EU law requirements — with cookie consent management, privacy-compliant contact form handling, and the underlying code architecture necessary to support full GDPR compliance when combined with an appropriate consent management plugin. For European businesses and anyone serving European visitors, Kalium’s GDPR-conscious architecture provides a solid legal compliance foundation from the start of every site build.

Continuous Free Updates — Future Demos Included

Kalium is actively maintained and continuously improved by the Laborator team — with regular updates delivering new features, new starter sites, new demo content packages, plugin version updates, WordPress and WooCommerce compatibility updates, and bug fixes. Every update is free for all Kalium license holders — and every new starter site and demo added in future updates is available to all existing users at no additional cost. The Kalium changelog demonstrates a consistent, high-frequency update history spanning over a decade — evidence of a development team that treats their theme as a living product rather than a static release.

Types of Websites You Can Build with Kalium

• Portfolio & Creative Agencies — Design studios, photography studios, illustration agencies, and creative professionals with distinctive portfolio presentations
• Fashion & Apparel Stores — WooCommerce fashion stores with size guide integration, product filtering, and editorial-quality product page design
• Photography Sites — High-resolution image galleries, fullscreen portfolio layouts, and client showcase sites
• Restaurant & Hospitality — Menu showcase sites, hotel booking integration, cafe and bar brand sites
• Medical & Dental — Accessible, WCAG-compliant practice websites with appointment integration and service pages
• Architecture & Interior Design — Project portfolio showcases with full-bleed imagery and case study layouts
• Corporate & Business — Multi-page company sites with service pages, team sections, testimonials, and contact forms
• Education & eLearning — Course showcase sites and educational institution websites with LMS plugin compatibility
• Blog & Online Publication — Elegant editorial blogs with rich post format support and magazine-style listing layouts
• SaaS & Tech Startups — Product landing pages, feature showcases, pricing pages, and conversion-optimized marketing sites

Key Features at a Glance

Feature	Details
Page Builders Supported	Elementor, WPBakery & Gutenberg
Starter Sites	25+ one-click demo imports — new demos added free
Header & Footer Builder	✅ Drag-and-drop visual builder
Included Premium Plugins	WPBakery, Revolution Slider, LayerSlider, ACF PRO, WooCommerce Product Filter, Size Guide
WooCommerce Support	✅ Full — grid/list layouts, filter sidebar, size guide
Font Sources	17,000+ from 6 libraries — Google, Adobe, Font Squirrel, Fontello, Premium, Custom Upload
Portfolio Types	Multiple unique types — grid, masonry, fullscreen, horizontal scroll & more
Blog Post Formats	Standard, Image, Video, Audio, Gallery, Link, Quote
Accessibility	WCAG 2.0 AA Certified
Multilingual	WPML Certified — Pre-translated in 18 languages
RTL Support	✅ Yes
Custom CSS/LESS/SASS	✅ Per-breakpoint input tabs
SEO	Semantic HTML5, Yoast & Rank Math compatible, Schema support
GDPR / EU Compliance	✅ Consent model built-in
Performance	Core Web Vitals optimized — compatible with all major caching plugins
Updates	Continuous free updates — new demos included
Sales on ThemeForest	47,000+ — #1 Creative WordPress Theme

How to Install

1. Click the Download button below to get the Kalium theme package
2. Extract the downloaded archive — locate the installable kalium.zip file inside the package
3. Go to WordPress Dashboard → Appearance → Themes → Add New → Upload Theme
4. Upload the kalium.zip file and click Install Now
5. Activate the Kalium theme
6. When prompted, install and activate the recommended plugins — including WPBakery Page Builder, Revolution Slider, LayerSlider, ACF PRO, WooCommerce Product Filter, and the Kalium Core plugin
7. Navigate to Kalium → Starter Sites (or Demo Import) to browse available starter sites — click your preferred demo and select Import to complete the one-click demo setup
8. Go to Kalium → Theme Options to configure your global settings — logo, colors, typography, header layout, footer, social links, and more
9. Edit any imported page using your chosen page builder (Elementor, WPBakery, or Gutenberg) to replace placeholder content with your own
10. For WooCommerce stores — install and activate WooCommerce, configure your products and payment settings, and use the included WooCommerce Product Filter and Size Guide plugins to enhance the shopping experience

Frequently Asked Questions

Is this theme free to download?

Yes, you can download Kalium for free from this page. It is redistributed under the GPL license.

Which page builder does Kalium use?

Kalium supports all three major WordPress page builders — Elementor, WPBakery Page Builder (included free in the package), and Gutenberg. You are free to use whichever builder suits your workflow — or mix builders across different pages of the same site.

What premium plugins are included with Kalium?

The Kalium package includes WPBakery Page Builder, Revolution Slider, LayerSlider, Advanced Custom Fields PRO, WooCommerce Product Filter, and WooCommerce Product Size Guide — all included at no additional cost and updated with every Kalium release.

Is Kalium accessible and GDPR compliant?

Yes. Kalium meets WCAG 2.0 AA accessibility standards and includes a built-in consent model for GDPR and EU privacy law compliance — providing a solid legal and accessibility foundation for any site built on the theme.

Does Kalium support multiple languages and RTL?

Yes. Kalium is WPML Certified and pre-translated in 18 languages. Full RTL (right-to-left) language support is included for Arabic, Hebrew, Persian, and other RTL languages.

Is it compatible with the latest WordPress and WooCommerce versions?

Yes. Kalium is actively maintained by Laborator with regular updates for full compatibility with the latest WordPress core, WooCommerce, and bundled plugin releases. The changelog is publicly available and demonstrates a consistent, high-frequency update history.

Download Kalium — Free

47,000+ sales. AWWWARDS recognition. WCAG 2.0 AA accessibility. WPML Certified. 17,000+ fonts. Six premium plugins included. 25+ starter sites. Three page builders. A Header and Footer Builder. Smooth, purposeful animations. Clean, semantic, performance-optimized code. And a design sensibility that sets it apart from every other multipurpose theme on the market. Kalium is not just a great theme — it is the standard that creative professionals hold other themes against. Download it today and see why.

⚠️ Disclaimer: This plugin/theme is for personal use and practice only. Run a malware scan before use. For commercial use, purchase a license from the official website.