Twenty Twenty-Five vs Next.js: Plain WordPress Against a Custom Build

The control group: WordPress exactly as it ships

Most theme comparisons are muddied by the theme. A commercial theme arrives with a builder, a settings panel, a companion plugin and a sales funnel, so when the site drags it is hard to say whether WordPress or the vendor is at fault. Twenty Twenty-Five takes the vendor out of the question. It shipped as the default theme of WordPress 6.7, the release nicknamed Rollins, on November 12, 2024. It is free under the GPL, usable on as many sites as you like, and maintained by the WordPress team itself.

It is also current. Version 1.5 landed on May 20, 2026, wordpress.org counts more than 1,000,000 active installs, and as of October 2026 no newer default theme has appeared in the directory. Its readme still says tested up to WordPress 7.0 while WordPress itself sits at 7.1.3, the sort of small lag a volunteer project collects. So when this page says WordPress, it means WordPress at its tidiest. Every weakness below belongs to the platform and its plugin economy, not to a theme vendor cutting corners.

Twenty Twenty-Five has no upsell. Every wall you hit is WordPress's own.

What a $0 theme does better than many paid ones

Credit first, because it has earned it. Twenty Twenty-Five does more design work out of the box than several themes that charge for a license, and it does that work without a single companion plugin.

That is a respectable kit for a writer, a photographer, a consultant or a small nonprofit. If you want to keep it that light once real posts, embeds and images arrive, the Twenty Twenty-Five speed guide walks through what to watch and what to leave alone.

Twenty Twenty-Five, a Next.js build and Athena across 22 rows

The left column describes the site a small business actually ends up running: Twenty Twenty-Five plus the few plugins needed for forms, search snippets and perhaps a modest shop. Notice how little of that column is about the theme. Its own footprint is small. Almost everything in it describes what WordPress asks you to bolt on around a theme that asks for nothing.

Several rows deserve their own page. Core Web Vitals on WordPress and Next.js explains why a lean theme still drifts, and the security comparison covers the login page every WordPress site carries, default theme or not.

The plugins it never asks for, and the ones you install anyway

Commercial themes lead you somewhere. There is a Pro add-on to buy, a starter-templates plugin to install, a builder the demos assume. Twenty Twenty-Five leads nowhere. No license key, no dashboard nag, no companion plugin with its own settings page. For a theme, that restraint is rare and worth naming.

A business, though, needs more than a theme. Here is what usually joins it within the first year, each from a different vendor:

• A form plugin, because core WordPress has no contact form block that sends email.
• An SEO plugin, because core has no field for a meta description or a redirect manager.
• WooCommerce, if a few products go on sale, and the theme ships no WooCommerce templates of its own.
• A caching or image plugin, when the host does not provide one and the speed report turns orange.
• Backup, security and cookie-consent plugins, each with its own update schedule and upgrade prompt.

So the theme's lightness is real, but the site around it is assembled the usual way. The lumps do not come from Twenty Twenty-Five; they come from WordPress expecting every business feature to arrive as a plugin. That is exactly why this theme is the fairest comparison: strip away the vendor and the plugin dependency question is what remains.

Site Editor surprises that send owners to the forums

Twenty Twenty-Five's support forum is quieter than most, and its common complaints say more about the block theme model than about the code. Four come up repeatedly.

1. 1.A hamburger on every phone, even for one menu item. The header's Navigation block collapses by default; setting its Overlay Menu option to Off in the header template part fixes it. The mobile menu guide shows where that switch hides.
2. 2.Nowhere obvious to put custom CSS. Owners returning from classic themes look for style.css and find theme.json and the Styles panel instead. The CSS not updating guide sorts out which layer wins.
3. 3.Long titles that overlap rather than wrap on narrow screens, reported in the forum without an answer at the time we checked.
4. 4.An Excerpt block that reportedly ignores manual excerpts, which matters to anyone who writes their own summaries for archive pages.

When a header disappears from a template or a chosen typeface refuses to appear, the header guide and fonts guide cover the checks. The pattern behind all of these is the same. Design decisions live in database records and JSON, not in files an owner recognizes, and the Site Editor lets anyone with an admin login change them on the live site. Next.js keeps the same decisions in code, reviewed before release. If you would rather hand the puzzle to someone, our theme troubleshooting service takes it from there.

The third option

Athena CMS, with AI agents on staff.

Not a theme and not a blank Next.js repo. The content system we put behind every custom site: plain fields, a real preview, every version kept, and AI agents that handle the chores a plugin only nags you about.

• PPicassoImages
• AApolloSite analysis
• AAresCompetitor watch
• PPrometheusContent holes
• AAtlasPage depth and structure
• DDelphiAI search visibility

ZDAOAand 12 more agents. Two come with Athena; the rest are monthly add-ons.

Meet the agentsTake the Athena tour

PPicassoWeekly · ImagesAApolloWeekly · Site analysis

Free theme or custom build: pick by the job, not the price tag

A $0 theme against a custom build sounds like no contest, and for plenty of sites it is not one. The right answer depends on what the site has to do for the business, so sort yourself by job rather than by budget alone.

If the left column describes you, keep the theme and spend the savings on content. If the right column does, read on, because leaving this particular theme is cheaper than leaving almost any other.

Leaving a block theme is the easy migration

The cost of leaving Twenty Twenty-Five is about as low as WordPress gets. Posts and pages are stored as block markup: ordinary HTML wrapped in comments that name each block. There are no builder shortcodes to decode and no proprietary layout data locked in a plugin's tables. A paragraph is a paragraph.

• Content converts cleanly. Block markup maps to structured fields with little hand repair.
• Patterns are just blocks once placed. Whatever a pattern inserted now lives in the post itself, so nothing breaks when the theme is gone.
• Site Editor changes need extracting. Edited templates, template parts and global styles are stored as database records, not theme files, so they are read out and rebuilt as components.
• Post formats become content types. Asides, quotes and galleries each get a proper template in the new build.
• URLs stay put or redirect. Every address is kept or mapped with a permanent redirect.

The full method, from export to launch, is laid out in moving Twenty Twenty-Five to Next.js. If your editors are attached to WordPress, there is also the option of keeping WordPress as the CMS behind a Next.js front end, though at that point the theme itself retires.

Where Athena fits for a Twenty Twenty-Five owner

People choose Twenty Twenty-Five because they want no vendor and no fuss. Athena CMS keeps that promise and removes the part that never quite delivered: the Site Editor's habit of turning a text change into a design decision. In Athena, a post is a set of plain fields with a real preview, every version is kept, and nothing the editor does can rearrange a header.

The chores a WordPress owner handles with plugins, or forgets, become jobs for agents. Calliope drafts articles for the blog the theme was built to show off. Iris writes search titles, descriptions and social cards. Picasso makes sure no image goes up unsized or undescribed. Argus watches for broken links and failing forms. Most of them draft for your approval rather than publishing on their own. The side-by-side is at Athena vs WordPress.

The verdict, business by business

• Writers and personal blogs: stay. Twenty Twenty-Five was built for you, and the post formats and blog designs are a gift.
• Photographers and portfolios: stay, and try the Photo blog design before paying for anything.
• Nonprofits and clubs: stay until donations, member logins or event registration enter the picture; then Next.js with Athena membership areas earns its cost.
• Local service businesses that buy ads: move. When each click costs money, a faster page and a stronger form pay for the build.
• Small shops: a few products can live here; a growing catalog belongs in the WooCommerce vs Next.js comparison.
• Publishers generating pages from data: move. Programmatic pages are where a Next.js build pulls furthest ahead.

Still undecided? Run the site through our free site audit and we will tell you which line you sit on. Compare notes with its predecessor in Twenty Twenty-Four vs Next.js, or with another block theme in Ollie vs Next.js. Every other theme is listed in the WordPress vs Next.js comparison center.