Search "best WordPress themes" and you get the same eight names every time: Astra, GeneratePress, Kadence, OceanWP, Neve, Blocksy, Hello Elementor, and whatever Envato is promoting that month. They are good themes. They are also so heavily covered that there is nothing left to say about them. This list is about the ones that rarely surface in those roundups — themes that are quietly excellent, actively maintained in 2026, and overlooked mostly because their makers spend their budget on engineering instead of affiliate programs.

A note on what "underrated" means here. I am not interested in abandoned themes with a nice screenshot. Every theme below is compatible with the block editor and the Site Editor, has had a release in the last several months, and solves a real problem better than the famous alternative. Where a theme has genuine downsides, I say so.

What actually makes a theme worth using in 2026

Before the list, the criteria, because "looks nice" is the least important one. The WordPress theme landscape split in two over the last few years: classic themes built around the Customizer and PHP templates, and block themes built around theme.json and the Site Editor with full-site editing (FSE). Both are valid. Block themes give you visual control over headers, footers, and templates without a page builder, and they tend to ship far less CSS and JavaScript.

The metrics I weigh:

Front-end weight on a real page. A lean theme should add well under 100 KB of its own CSS/JS before you add content. The famous lightweight themes hit roughly 10–30 KB of base CSS. Anything shipping 300 KB of render-blocking assets out of the box is a liability.
Core Web Vitals headroom. The theme should not be the reason you miss LCP under 2.5 seconds or INP under 200 ms. Themes that lazy-load nothing, inline giant font stacks, or bundle a slider library you never asked for eat that budget.
How much it fights you. Some themes are opinionated in a way that saves time; others are opinionated in a way that means every change is a CSS override war.
Licensing honesty. A clear GPL license, a real changelog, and a pricing page without dark patterns.

The overlooked picks

Frost — the cleanest blank canvas block theme

Frost, by Brian Gardner (the person behind the original StudioPress/Genesis era), is a near-empty block theme designed to be a starting point rather than a finished design. That sounds unappealing until you have spent a weekend deleting demo content from a "starter site." Frost gives you a sensible theme.json — a tidy color palette, fluid typography, spacing scale — and almost nothing else. You build the rest in the Site Editor.

It is genuinely fast because there is nothing to be slow. If you are comfortable composing layouts from core blocks and patterns, Frost is one of the best foundations available, and it is free. The catch is the obvious one: if you want a design handed to you, this is the wrong choice.

Ollie — block patterns done right

Ollie sits at the opposite end from Frost. It is a free block theme with a genuinely good library of patterns and a guided onboarding wizard that sets up colors, fonts, and pages for you. Where most "free with patterns" themes lock the good layouts behind a Pro upsell that appears every third click, Ollie's free tier is unusually complete. It is a strong pick for a marketing site or a small-business brochure site where you want to look designed without buying a builder. Pair it with the block editor and you can ship a respectable five-page site in an afternoon.

Sydney — the free business theme that punches above its weight

Sydney, by aThemes, has been around for years and gets dismissed as "just another free business theme." That undersells it. The free version includes header layouts, a hero with a call to action, and integration patterns that usually cost money elsewhere. It still leans on the Customizer rather than full FSE, which makes it a classic theme, but that is a feature if your client is comfortable with the Customizer and you do not want to retrain them on the Site Editor. It is reliable, well-documented, and the Pro tier is reasonably priced rather than a subscription trap.

Twenty Twenty-Four and Twenty Twenty-Five — yes, the defaults

The most underrated themes in WordPress are the ones that ship with WordPress. People skip the default themes reflexively, assuming "default" means "basic." The recent defaults are the opposite: Twenty Twenty-Four is a flexible, pattern-rich block theme aimed at three use cases (business, portfolio, blog) and it is excellent for all three. Twenty Twenty-Five doubled down on patterns and writing-focused layouts.

They are maintained by the core team, audited harder than any commercial theme, accessibility-ready, and they will never disappear because a solo developer lost interest. If you want a free, fast, future-proof block theme and you are willing to do the layout work in the Site Editor, the current default is often the correct answer and nobody recommends it.

Bricks — the builder-theme nobody mentions in theme lists

Bricks is a hybrid: a theme and a visual builder fused into one product, sold as a one-time-ish license plus optional renewals. It belongs on this list because the usual builder conversation is Elementor versus Divi, and Bricks quietly outperforms both on output. It generates clean, lean markup, supports a query loop and dynamic data without a pile of add-ons, and does not bury your site under the DOM bloat that page builders are notorious for. The learning curve is real and it is not free, but for an agency that wants builder flexibility without the performance tax, it is the most underrated option in the category.

Eksell — a genuinely characterful free theme

Eksell, by Anders Norén (whose themes shipped as WordPress defaults in the past), is a free portfolio and blog theme with actual personality — something rare in a space dominated by interchangeable gray-and-white business templates. It is fast, tasteful, and a great pick for a designer, photographer, or writer who wants a site that looks like a person made it rather than a template farm. Norén's themes are reliably well-built, and Eksell rarely shows up in roundups because there is no affiliate revenue attached to a free passion project.

How to choose without installing all six

The single most useful filter is whether you want to work in the Site Editor or the Customizer. If you are building new today and want long-term alignment with where WordPress is heading, choose a block theme — Frost, Ollie, or a current default. If you are maintaining a site for a client who already knows the Customizer, a classic theme like Sydney avoids a retraining project.

The second filter is how much design you want done for you. Frost and the defaults hand you a system and expect you to compose; Ollie and Sydney hand you something closer to finished. Neither is better — they are different amounts of work front-loaded onto you versus the theme author.

Two habits will save you regardless of which you pick:

Test the real page weight yourself. Install the theme on a staging copy, load a representative page, and check the network panel. Marketing claims about "lightweight" are not auditable; the network tab is.
Resist activating demo content you will not keep. Importing a full demo site to get one section you liked leaves orphaned pages, plugins, and database rows. Copy the one pattern you want and skip the rest.

None of these will trend on a "10 best themes" listicle, because the listicle economy rewards the themes that pay to be on it. That is exactly why they are worth your attention. Pick one that matches your editing workflow, audit it against your own Core Web Vitals targets, and you will have a faster, more distinctive site than the crowd running the same five famous themes.

The Underrated WordPress Themes Nobody's Talking About