Builder lock-in: what nobody tells you
Every website builder has lock-in. Knowing where it lives lets you choose with eyes open.
Every website platform you choose carries some degree of lock-in. The marketing copy never mentions it. Here is where it lives.
Visual design lock-in
You can't export your Framer design and reopen it in Webflow. You can't take your Webflow CSS and drop it into a custom build. The visual work was done in the platform's editor and only lives there. Migrating means rebuilding the design.
This is the most invisible lock-in because nobody promised you portability.
Content lock-in
Most platforms let you export your text content (CSV, JSON, sometimes XML). What rarely transfers cleanly: rich text formatting, custom field structures, image associations, references between collections.
You usually keep about 80% of your content on export. The remaining 20% is manual cleanup.
URL structure lock-in
Different platforms enforce different URL conventions. Squarespace's blog URLs look one way, Webflow's another, WordPress another. If you migrate, every URL changes, every backlink to your site eventually 404s unless you set up redirects.
This is the SEO version of lock-in and it bites hardest.
Integration lock-in
You wired up 14 integrations over three years — analytics, email, CRM, scheduling, payment, chat, A/B testing. Each one was configured for the current platform. Migration means rewiring all of them, testing all of them, and hoping the new platform supports all of them.
Team knowledge lock-in
Your editors learned the current platform. They know its quirks. They know how to fix the formatting bug that happens when they paste from Word. All of that knowledge evaporates on migration.
Custom code lock-in
If you had custom code, custom integrations, custom embed scripts — every one of those needs reviewing on the new platform.
What this means for the decision
Lock-in isn't a reason to avoid every platform. Lock-in is a reason to choose deliberately and stay until there is a real reason to move. Platform-hopping every two years is the most expensive thing a studio can do.
Pick a platform that fits your project for at least three years. Then commit. Then stop reading "best website builder" articles.