Search for “All-in-One WP Migration vs Duplicator” and you will find a dozen comparison articles. Every single one has a problem.
The article on Duplicator’s own website recommends Duplicator. The article on WPBeginner recommends Duplicator, and most readers do not know that WPBeginner’s parent company, Awesome Motive, acquired Duplicator in January 2023. They are literally recommending their own product. BlogVault’s comparison makes both plugins look inadequate so you buy BlogVault instead. Transferito’s article exists to funnel you toward Transferito.
Every article currently ranking for this search has a financial incentive to push you toward a specific product. And every single one gets key facts wrong about both plugins.
So here is our attempt at an honest comparison. Full disclosure: we are ServMask, the company behind All-in-One WP Migration. We have our own bias, and we are telling you about it upfront. What we will not do is misrepresent Duplicator’s features or hide our own limitations. You deserve accurate information to make your own decision.
Quick Comparison
| Feature | All-in-One WP Migration (Free) | Duplicator (Free) |
|---|---|---|
| Active Installs | 5,000,000+ | 1,500,000+ |
| Sites Served | 60,000,000+ | Not published |
| Migration Method | Drag-and-drop import in browser | FTP upload + manual installer |
| WordPress Required | Yes, on both ends | No (can deploy to empty server) |
| Export | One-click, complete site | Package builder with scan |
| Import | Drag-and-drop in dashboard | Manual installer wizard |
| Search/Replace | Automatic (URLs, paths, serialized data) | Automatic |
| Archive Size Limit (Free) | Hosting PHP settings (not plugin-imposed) | 500MB |
| Scheduled Backups | Pro ($99/year) | No (Pro only) |
| Cloud Storage | Via extensions | No (Pro only) |
| Multisite | Via extension | No (Pro only) |
| Price (Paid) | Unlimited Extension: $69/year | Basic: $79/year |
What Each Plugin Actually Does
All-in-One WP Migration
All-in-One WP Migration is a migration plugin. It exports your entire WordPress site (database, themes, plugins, media, everything) into a single .wpress file. You install WordPress and the plugin on your new host, then drag and drop that file into the import screen. The plugin handles URL replacement, path replacement, and serialized data fixing automatically.
The free plugin focuses on doing one thing well: moving WordPress sites from point A to point B with minimal technical knowledge required. The Pro version ($99/year) extends this with scheduled backups, incremental backups, cloud storage to 14+ destinations, and advanced configuration options including retention policies, email notifications, and selective export controls.
Duplicator
Duplicator is a migration and backup plugin. It creates a “package” containing your site files and database, along with an installer script. You upload the package and installer to your new server (via FTP, cPanel File Manager, or similar), then run the installer through your browser. Duplicator can deploy to a server that does not have WordPress installed yet.
In its Pro versions, Duplicator also handles scheduled backups, cloud storage, staging sites, and disaster recovery.
Head-to-Head Comparison
1. Ease of Use
All-in-One WP Migration keeps the process inside the WordPress dashboard on both ends. Export on the old site, download a file, go to the new site’s dashboard, drag the file into the import screen. No FTP, no database credentials, no command line. If you can install a WordPress plugin, you can migrate a site.
Duplicator Free requires more technical steps. After creating a package, you need to download two files (the archive and the installer PHP file), upload them to your new server via FTP or cPanel File Manager, navigate to the installer URL in your browser, and enter your new database credentials manually. You need to create the database yourself through your hosting control panel first. For users comfortable with FTP and database management, this is straightforward. For someone who has never opened an FTP client, it is a significant barrier.
Duplicator Pro added a drag-and-drop import feature that works similarly to All-in-One WP Migration’s approach, bringing it closer to the same ease of use. But this requires a paid plan starting at $79/year.
Edge: All-in-One WP Migration for non-technical users. If you are comfortable with FTP and databases, both work fine.

2. The Import Size Limit - What Every Other Comparison Gets Wrong
This is where every other comparison article publishes inaccurate information. Here is what they claim:
| Source | Claimed AIO Free Import Limit |
|---|---|
| Duplicator.com | 512MB |
| WPBeginner (owned by Duplicator’s parent company) | 256MB |
| Themeisle | 300MB |
| OddJar | 512MB |
| PixelNet | 512MB |
| CanadaCreate | 256MB |
| Transferito | 512MB |
Seven different articles. Three different numbers. None of them are correct.
Here is the truth: All-in-One WP Migration’s free plugin does not impose an import size limit. The limit users encounter comes from their hosting provider’s PHP configuration, specifically the upload_max_filesize and post_max_size settings. These are server-level restrictions that affect every WordPress plugin that handles file uploads, not just ours.
When you see a size limit message in the plugin, it is telling you what your hosting provider allows, not what the plugin allows.
What the Unlimited Extension ($69/year) actually does: It overrides the hosting provider’s PHP upload restrictions. It solves a hosting problem, not a plugin problem. Think of it this way: if your hosting allows 256MB uploads, the free plugin will import files up to 256MB. If your hosting allows 2GB uploads, the free plugin will import files up to 2GB. The Unlimited Extension removes the hosting ceiling entirely.
Duplicator Free, by comparison, has an actual plugin-imposed archive size limit of 500MB. Archives larger than 500MB require the DupArchive format, which is only available in Duplicator Pro.
This distinction matters. One plugin reflects your hosting limits. The other imposes its own.
3. Migration Process
All-in-One WP Migration workflow:
- Install the plugin on the source site
- Go to All-in-One WP Migration > Export
- Click “Export To” and select “File”
- Download the .wpress file when the export is complete
- Install WordPress and the plugin on the destination site
- Go to All-in-One WP Migration > Import
- Drag and drop the .wpress file
- Done
Duplicator Free workflow:
- Install the plugin on the source site
- Go to Duplicator > Packages > Create New
- Run the system scan and review warnings
- Build the package (archive + installer.php)
- Download both the archive file and installer.php
- Create a new database on the destination server (via cPanel, phpMyAdmin, etc.)
- Upload both files to the destination server via FTP or cPanel File Manager
- Navigate to yourdomain.com/installer.php in your browser
- Enter the new database credentials (host, name, user, password)
- Run the installer
- Log in with your existing WordPress credentials
- Delete the installer files (security requirement)
The difference is clear. All-in-One WP Migration keeps everything inside the WordPress dashboard with 4-5 clicks total. Duplicator Free requires FTP access, database creation, and manual credential entry.
Duplicator Pro narrows this gap with its import feature, but that requires a paid subscription.
4. Backup Features
Both plugins offer scheduled backups in their Pro versions.
All-in-One WP Migration Pro ($99/year) includes a full backup scheduler with flexible scheduling options: hourly, daily, weekly, monthly, custom N-hour or N-day intervals, and one-time backups. It supports incremental backups (only backing up what changed since the last run) to most cloud storage destinations. Advanced configuration includes backup retention policies (by count, total size, or age), email notifications on success or failure, password-protected encrypted backups, GZip or BZip2 compression, selective file and database table exclusion, and the ability to include non-WordPress database tables. You can create multiple independent schedules, each with different destinations and configurations.
Duplicator Pro (starting at $79/year) includes scheduled backups with hourly, daily, weekly, and monthly options. It also offers disaster recovery, which lets you restore your site even when you cannot access the WordPress dashboard. This is a genuine advantage that All-in-One WP Migration does not offer.
Duplicator Free and All-in-One WP Migration Free do not include scheduled backups. Those features require paid versions in both cases.
Edge: Both are strong here. All-in-One WP Migration Pro offers more granular scheduling (custom intervals, incremental backups) at a lower price point ($99 for unlimited sites vs $79 for 2 sites). Duplicator Pro offers disaster recovery, which is unique and valuable.
5. Cloud Storage
All-in-One WP Migration Pro ($99/year for 50 sites) bundles all cloud storage extensions into a single package: Google Drive, Dropbox, Amazon S3, OneDrive, Box, Backblaze B2, Google Cloud Storage, DigitalOcean Spaces, Wasabi, pCloud, WebDAV, and more. One license, all destinations, 50 sites.
Duplicator Free does not support cloud storage at all. Duplicator Pro supports Google Drive, Dropbox, Amazon S3, OneDrive, Wasabi, Google Cloud Storage, Backblaze B2, Cloudflare R2, and SFTP/FTP. Cloud storage is included starting with the Basic plan ($79/year), but the Basic plan limits you to one cloud storage destination and only 2 sites. Unlimited destinations require the Plus plan ($199/year, 5 sites).
Edge: All-in-One WP Migration Pro gives you all cloud destinations for $99/year across 50 sites. To get unlimited cloud destinations with Duplicator, you need the Plus plan at $199/year for only 5 sites.
6. Multisite Support
All-in-One WP Migration handles multisite through the Multisite Extension ($319/year for up to 50 sites). It supports all five multisite migration scenarios: moving entire networks, extracting subsites, importing standalone sites into multisite, converting multisite back to single site, and moving subsites between networks. For a deeper dive, see our WordPress Multisite Migration Guide.
Duplicator offers multisite support in its Pro plan ($399/year for up to 20 sites) and Elite plan ($599/year for up to 100 sites). It handles network migration but with a different approach.
Edge: Both handle multisite, but at different price points and with different capabilities.
7. Large Site Handling
All-in-One WP Migration uses chunked file processing (512KB chunks by default) for both export and import. This means it works reliably on shared hosting with limited resources because it never tries to load the entire site into memory at once. The chunking approach is specifically designed for constrained hosting environments where memory limits and execution timeouts are aggressive.
Duplicator Free struggles with large sites on shared hosting. The package building process can time out or fail on servers with limited resources. As one independent review noted, “Duplicator and low-resource shared hosting do not get along.” Duplicator Pro introduced the DupArchive format specifically to handle larger sites, but this requires a paid plan.
Edge: All-in-One WP Migration for sites on shared or resource-limited hosting. Duplicator Pro handles large sites well with DupArchive, but it requires a paid subscription.

8. Empty Server Deployment
This is a genuine advantage for Duplicator. Duplicator can deploy a WordPress site to a server that has no WordPress installation at all. You upload the archive and installer, run the installer, and it sets up everything from scratch including WordPress itself.
All-in-One WP Migration requires WordPress and the plugin to be installed on both the source and destination. For most migrations (host to host, domain changes, staging to production), this is a non-issue because WordPress is already installed or takes 60 seconds to install. But for workflows involving bare servers or automated deployment pipelines, Duplicator’s approach is more flexible.
Edge: Duplicator, clearly.
9. Security Track Record
Security matters for any plugin that handles your entire site’s data, including database credentials, user accounts, and potentially sensitive customer information.
All-in-One WP Migration has maintained a clean security record throughout its history. The plugin processes data within the WordPress environment and does not expose installer scripts or temporary files to the public web.
Duplicator has had several documented security vulnerabilities over the years:
- An unauthenticated remote code execution vulnerability (CVE-2018-25095) with a CVSS score of 9.0 (Critical)
- An unauthenticated backup download vulnerability in versions before 1.4.7
- An unauthenticated sensitive data exposure vulnerability in versions before 1.5.7.1 (CVSS 7.5)
- A path traversal vulnerability allowing arbitrary file access
These vulnerabilities have been patched, and the current versions of Duplicator are maintained by Awesome Motive’s development team. However, the architectural approach of exposing an installer.php file on the public web inherently creates a larger attack surface than an approach that stays entirely within the WordPress dashboard.
Edge: All-in-One WP Migration. No critical CVEs, no public-facing installer scripts.
10. Pricing
Here is the accurate pricing comparison as of March 2026:
All-in-One WP Migration:
| Plan | Price/Year | Sites | What You Get |
|---|---|---|---|
| Free | $0 | Unlimited | Full migration, search/replace |
| Unlimited Extension | $69 | 50 | Bypass hosting upload limits, priority support |
| Pro | $99 | 50 | All extensions bundled: scheduled backups, incremental backups, cloud storage (14+ destinations), retention policies, email notifications, priority support |
| Multisite Extension | $319 | 50 | Full multisite migration (all 5 scenarios) |
Duplicator:
| Plan | Price/Year | Sites | What You Get |
|---|---|---|---|
| Free | $0 | Unlimited | Basic migration (FTP required, 500MB limit) |
| Basic | $79 (initial, ~$158 renewal) | 2 | Scheduled backups, 1 cloud destination, drag-and-drop |
| Plus | $199 (initial, ~$398 renewal) | 5 | Hourly backups, unlimited cloud destinations |
| Pro | $399 (initial, ~$798 renewal) | 20 | Staging, multisite, media-only backups |
| Elite | $599 (initial, ~$1,198 renewal) | 100 | Activity log, premium support |
The renewal pricing issue: Duplicator’s initial purchase prices are typically discounted 40-50%. When your subscription renews, it renews at the full, undiscounted price. Multiple users on WordPress.org and Trustpilot have reported surprise renewal charges, with some calling the practice a “bait-and-switch.” One user documented their price going from $41.40 in 2021 to $159.60 in 2026 for the same plan.
All-in-One WP Migration’s pricing is the same at purchase and renewal. The price you see is the price you pay every year.
Value comparison:
- All-in-One WP Migration Unlimited ($69/year) covers 50 sites. Duplicator Basic ($79/year initial, ~$158 renewal) covers 2 sites.
- All-in-One WP Migration Pro ($99/year) with all extensions bundled covers 50 sites. Duplicator Plus ($199/year initial) covers 5 sites with unlimited cloud destinations.
Edge: All-in-One WP Migration on value per dollar, especially considering the renewal pricing difference and per-site licensing.
11. WordPress.org Ratings
Duplicator has a 4.9/5 star rating on WordPress.org. All-in-One WP Migration has a 4.5/5 star rating.
This is a real difference and we will not pretend otherwise. Duplicator’s rating is higher. But looking at why reveals something important about the misinformation problem.
We reviewed AIO’s 1-star reviews on WordPress.org (849 out of 7,623 total reviews). Roughly half of all negative reviews are from users who encounter their hosting provider’s PHP upload limit and believe the plugin is artificially restricting them. Here are real quotes from actual reviews:
“My new site has an upload limit of 1gb… please now explain why THIS App tells me that’s incorrect and that my ACTUAL upload limit is 64mb. WHAT A JOKE. Terrible Scam.” – gildartsthegreat
“The so-called ‘upload limit’ error in the free version is simply a lie. No matter how much you tweak the settings, it’ll keep telling you to increase the limit.” – antialiasfactory
“They continue to say its a server restriction. I’m a Systems engineer and I built the server. There is no restriction on the server.” – juswat23
“Screenshot shows 512 mb maximum upload file. In reality it is only 128 mb maximum.” – MBV
These users are frustrated, and their frustration is understandable. But the cause is not the plugin. It is the dozens of comparison articles (including the ones listed above) that incorrectly claim the plugin has a built-in 256MB or 512MB limit. Users read those articles, download the plugin expecting a specific limit, encounter a different number (their actual hosting limit), and conclude the plugin is lying to them.
The pattern is consistent: comparison articles publish wrong import limit numbers, users form expectations based on those numbers, the plugin shows a different number (the actual server limit), and users leave 1-star reviews calling it a scam.
On Trustpilot, the picture is different. All-in-One WP Migration has a 4.5/5 TrustScore with 283 reviews, with 89% at 5 stars. Duplicator has a 4.0/5 TrustScore with 70 reviews, where the negative reviews focus on renewal pricing practices.
Edge: Duplicator on WordPress.org rating. But when you account for the misinformation-driven reviews, the gap narrows significantly.
The Ownership Web You Should Know About
Before you read any other comparison article, you should understand the business relationships behind them.
Awesome Motive is a company founded by Syed Balkhi. It owns:
- Duplicator (acquired January 2023)
- WPBeginner (the largest WordPress resource site)
- IsItWP (WordPress tool recommendations)
- WPForms (whose blog publishes WordPress plugin comparisons)
- MonsterInsights, OptinMonster, SeedProd, RafflePress, and 20+ other WordPress products
When WPBeginner publishes a comparison article recommending Duplicator over competitors, they are recommending a product owned by the same parent company. This is not speculation. It is public information, but most readers are not aware of it.
This does not mean Duplicator is a bad product. It means you should factor the source’s incentives into how much weight you give their recommendation.
We are ServMask. We make All-in-One WP Migration. We have told you this upfront. Judge our comparison on the accuracy of the facts, not on our brand name.
Who Should Use Which Plugin
There is no single “winner” because these plugins serve different needs. Here is our honest recommendation by use case:

Use All-in-One WP Migration if:
- You are not technical and want the simplest possible migration process
- You are moving between two hosts where WordPress is already installed (the most common migration scenario)
- You manage many sites and want one license that covers all of them
- Your site is on shared hosting with limited server resources
- You need reliable chunked transfers that will not time out mid-migration
- You want transparent pricing with no renewal surprises
Use Duplicator if:
- You need to deploy to an empty server without WordPress pre-installed
- You need disaster recovery to restore when locked out of WordPress entirely
- You need built-in staging sites (Duplicator Pro)
- You are comfortable with FTP and database management (Duplicator Free)
Frequently Asked Questions
Is All-in-One WP Migration free?
Yes. The free plugin on WordPress.org handles complete site migrations with no plugin-imposed size limit. The Unlimited Extension ($69/year) is only needed if your hosting provider’s PHP settings restrict upload sizes.
Is Duplicator free?
The free version handles basic migrations but requires FTP access, manual database setup, and has a 500MB archive limit. The drag-and-drop import feature that most users expect requires Duplicator Pro ($79/year and up).
Can I migrate a large site (over 1GB) with either plugin?
With All-in-One WP Migration, the free plugin handles large sites well, but your hosting’s upload limit may require the Unlimited Extension. With Duplicator, sites over 500MB require Duplicator Pro’s DupArchive format.
Which plugin is better for WooCommerce migrations?
Both handle WooCommerce data. All-in-One WP Migration’s search-and-replace engine handles serialized data in WooCommerce’s options and order metadata automatically. For a detailed WooCommerce migration walkthrough, see our WooCommerce Migration Guide.
Can I use both plugins?
Yes. There is no conflict between them. That said, All-in-One WP Migration Pro covers both migration and scheduled backups, so most users will not need both.
Which plugin is more secure?
All-in-One WP Migration processes everything within the WordPress dashboard and has no history of critical security vulnerabilities. Duplicator’s installer-based approach exposes files to the public web during migration, and the plugin has had multiple documented CVEs including a critical remote code execution vulnerability. Current versions have been patched.
Do I need to buy extensions for All-in-One WP Migration?
For a basic host-to-host migration, the free plugin is all you need if your hosting allows sufficiently large file uploads. The Unlimited Extension is needed when hosting upload limits are restrictive. Cloud storage extensions are needed only if you want to export directly to cloud storage instead of downloading the file locally.
Our Take
We built All-in-One WP Migration to make WordPress migrations simple. Export a file, import a file, done. We focused on doing that reliably across every hosting environment, which is why 60 million sites have used the plugin since 2013. The Pro version extends this with scheduled and incremental backups, cloud storage, and advanced configuration for users who need ongoing site protection alongside migration.
Duplicator takes a similar approach by combining migration with backup features. Their Pro plans offer genuine value, particularly the disaster recovery feature for restoring sites when locked out of the dashboard entirely.
The right choice depends on what you need. For a straightforward site migration, we believe our approach is simpler, more reliable on constrained hosting, and more transparent in pricing. For users who need empty server deployment, disaster recovery, or built-in staging, Duplicator Pro covers those use cases.
What we ask is that you make your decision based on accurate information, not on comparison articles written by the company that owns the product they are recommending.
We are ServMask, creators of All-in-One WP Migration. This article represents our perspective. We have attempted to be factually accurate about both products. If you find any errors, email us at support@servmask.com and we will correct them.
Sources
We encourage readers to verify the claims in this article independently. Here are the sources we referenced:
- Awesome Motive acquires Duplicator - WordPress Developer News, January 2023
- Duplicator pricing - Duplicator.com
- All-in-One WP Migration pricing - ServMask.com
- CVE-2018-25095 (Duplicator RCE) - CVSS 9.0, unauthenticated remote code execution
- CVE-2023-44233 (Duplicator sensitive data exposure) - CVSS 7.5, unauthenticated data exposure
- All-in-One WP Migration on WordPress.org - 5M+ active installs, 4.5/5 rating
- Duplicator on WordPress.org - 1.5M+ active installs, 4.9/5 rating
- WPBeginner comparison article - Claims 256MB import limit
- Duplicator.com comparison article - Claims 512MB import limit
- Duplicator renewal pricing complaints on WordPress.org - User reviews documenting pricing practices
- All-in-One WP Migration reviews on Trustpilot - 4.5/5 TrustScore, 283 reviews, 89% five-star
- Duplicator reviews on Trustpilot - Includes reviews documenting year-over-year price escalation ($69 in 2021 to $159.60 in 2026)
- All-in-One WP Migration 1-star reviews on WordPress.org - Majority cite upload limits caused by hosting PHP settings, not the plugin
