The State of Vue.js Report 2025 is now available! Case studies, key trends and community insights.

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Vue.js Migration Guide

Are you struggling with migration your project to Vue 3.0? Together with the Vue Core Team and our Vue experts, we’ve compiled a step-by-step Migration Guide to help you modernize without the overwhelm.

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Delivered by the official Vue.js Partner

Delivered by the official Vue.js Partner

Monterail is proud to be on the Official Partner Lists of Vue and Nuxt, which feature top-tier software development and consulting agencies. Partnering with us means working with a trusted Vue.js and Nuxt development company that offers top-quality assurance and innovation. With years of hands-on experience, we pride ourselves on being expert developers who consistently deliver outstanding results.

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Migration to Vue 3: Still a pain point

Vue 2 officially reached End of Life (EOL) on December 31st, 2023 meaning it no longer receives new features, updates, or fixes. Yet, insights from the State of Vue.js Report 2025 reveal that many teams have not fully migrated and are still struggling to make the switch.

35%

have still used Vue 2.7x version in their projects in the last 12 months.

25%

reported experiencing challenges when migrating from Vue 2 to Vue 3.

Stuck with Vue 2?

There are many reasons why it's hard to migrate some applications to Vue 3:

  • Huge codebase

  • Lack of time/budget

  • Lack of experience

  • Dependencies without Vue 3 support or a lot of breaking changes

  • Usage of non-public APIs that has been changed in newer versions

Our guide will help you overcome these challenges and find a tailored solution.

Why upgrade? Key features of Vue 3

Vue 3 has new features that are not present in Vue 2, such as Teleport, Suspense, and multiple root elements per template. These functionalities open up new possibilities for developers and can help take care of an easier to maintain and develop architecture especially for complex applications.

Expert's insight

Monterail’s Incremental Approach to Migration

Vue 3 migration is more than just a technical update—it’s a strategic upgrade that needs a strategic approach.

At Monterail, we’ve found that an incremental approach works best. Rather than rewriting your entire codebase at once, we update small, self-contained parts of the application step by step. This minimizes disruption, reduces risk, and keeps your team productive.

Your legacy codebase will still be modernized—but in phases aligned with your product vision. This spreads out the effort, lowers immediate costs, and helps manage technical debt more effectively.

Expert's opinion

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Before installing Vue 3

Consider these steps even if you don’t plan to migrate.

1. Update Vue to version 2.7

New options to write and organize your code:

  • stable Composition API

  • <script setup>

  • CSS v-bind

New libraries, e.g. VueUse

Better tooling support: Volar

2. Start using Vite and Vitest

It's a whole new level of developer experience.

How to approach incremental migration? Potential solutions

Use migration build

@vue/compat can postpone the migration of parts of the application. Despite the small performance and size overhead, you can ship partially upgraded applications to production.

Use vue demi to share code between Vue 2 and Vue 3 apps

Vue Demi is a developer tool that allows you to write code using the universal Vue API, which can run in both Vue 2 and Vue 3 applications.

Consider implementing a microfrontend architecture

Such a solution may add complexity to the application. However, its advantage is the freedom in the approach to migration each module can now be upgraded separately.

Create new pages/modules within the new Vue 3 application and gradually move the old ones

Just introducing a new module in your application? Create it as a new application with Vue 3. You will encounter difficulties here (particularly related to code sharing), but addressing issues now can pay off sooner than you think. You may find it beneficial to slowly move previous parts of application here as you go.

Overcome Vue 3 migration challenges with proven solutions.

Below you will find three most common types of blockers when migrating to Vue 3, listed with ready-to-implement solutions.

Vue 3 Migration Guide

Take Vue.js Further with Monterail

At Monterail, we deliver our Vue.js expertise to help businesses build scalable, high-performance applications that drive results. By partnering with us, you gain access to a team of professionals with 10+ years of Vue experience and over 40 successful Vue projects.

State of Vue.js Report 2025
Grzegorz Hajdukiewicz | Chief Delivery Officer

Every great product starts with a conversation. Share your vision with us, we’ll help you shape it. Let's meet to plan the next steps and make it happen.

Grzegorz Hajdukiewicz | Chief Delivery Officer

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