If you're choosing a WordPress migration plugin and you care about organic traffic, the question isn't "which is easiest?" — it's "which is least likely to silently break something search engines care about?" That's a different question, and most comparison guides skip it. Here's the short version, focused on SEO outcomes.
TL;DR
- Small/medium sites with simple stacks: All-in-One WP Migration (free) — drag-and-drop is the lowest-friction path and serialized data is handled cleanly.
- Large or complex sites where SEO matters: Migrate Guru (free) — server-to-server migration eliminates the silent-partial-import risk that breaks the other two at scale.
- Agencies running many migrations a month: Duplicator Pro — Recovery Points and pre-configured site bundles are designed for batch work.
- None of them handle 301 redirects. This is the single biggest SEO trap during migration. Pick a redirect tool separately.
Quick comparison
| Criterion | Duplicator (Lite) | All-in-One WP Migration | Migrate Guru |
|---|---|---|---|
| Free version | Yes | Yes | Yes |
| Site size (free) | 500MB (DupArchive) | Limited by host PHP (often 512MB) | Up to 200GB |
| Drag-and-drop import (free) | No (FTP needed) | Yes | N/A (server-to-server) |
| Serialized data handling | Good | Excellent | Excellent |
| Multisite (free) | No | No | Yes |
| Free monthly cap | None | None | 5 sites/month |
| Pro pricing | $49.50–$299.50/yr | $69–$99/yr | Fully free |
| Handles 301 redirects | No | No | No |
Duplicator
Owned by Awesome Motive (the WPBeginner/MonsterInsights company). Bundles your site into an archive.zip plus installer.php, which you upload via FTP and run through your browser to deploy. Serialization handling is solid — page builder layouts (Elementor, Divi, WPBakery) survive cleanly on the database side.
The SEO concern with the free version is silent partial archives on larger sites. Standard ZipArchive can time out on shared hosting before completing the bundle, and you sometimes get a partial archive that looks complete. Pro's DupArchive format solves this, but you're paying for it. Renewal pricing is the trap most reviews don't flag: a $69 plan can renew at $159 a few years later.
Best for: agencies who want backup, migration, and staging in one tool, especially with Pro's pre-configured site bundles for cloning starter sites.
All-in-One WP Migration
Built by ServMask. The drag-and-drop UX is genuinely the best of the three — install, drag the .wpress file in, done. No FTP, no database setup, no editing wp-config.php. The serialization engine is excellent: WooCommerce options, order metadata, and page builder layouts survive reliably.
The famous "512MB limit" isn't actually a plugin limit — it's your hosting provider's PHP upload_max_filesize setting, which the plugin reports faithfully. Pay $69/year for the Unlimited Extension to bypass it, or raise PHP limits yourself if your host allows. Where AIOWPM falls down is on very large sites: there's no upload resume, so a connection blip during a 4GB upload means restarting.
Best for: small-to-medium sites where you want the lowest-friction process and your team isn't comfortable with FTP.
Migrate Guru
Built by the BlogVault team. The outlier of the three — it doesn't run the migration on your server at all. It transfers your site server-to-server using its own infrastructure as the intermediary.
For SEO, this is genuinely the safest of the three on large sites. The biggest source of silent SEO disasters in plugin migrations is the partial-import scenario: a plugin times out mid-process, marks itself "complete," and three weeks later you realise 30% of your products or older blog posts never came across. Because Migrate Guru runs externally, your hosting's PHP timeouts and memory limits don't apply — it either finishes or gives a clear error. No "looks fine but isn't" middle state.
Handles up to 200GB. Multisite supported in the free version (rare). Direct integrations with major managed hosts (Kinsta, WP Engine, SiteGround, Cloudways). Limits: no local-to-live workflow, 5 free migrations per user per month, and it's a migration tool only — not a backup solution.
Best for: large or complex sites, anything on shared hosting where timeouts are a real risk, WooCommerce stores, or multisite networks.
Decision framework
| Your situation | Pick |
|---|---|
| Small site, simple stack, want easiest path | All-in-One WP Migration (free) |
| Site over 1GB, on shared hosting, worried about timeouts | Migrate Guru |
| WooCommerce store with large catalog | Migrate Guru |
| Multisite network | Migrate Guru (free) or AIOWPM Pro |
| Agency cloning starter sites at volume | Duplicator Pro |
| Local development → production deployment | All-in-One WP Migration |
| Enterprise site (10,000+ pages) with domain change | Manual + agency, not plugin alone |
The bigger picture: what no migration plugin will do
The most important thing this comparison can't decide for you: none of these three plugins handle 301 redirects, none check that you removed the "Discourage search engines from indexing this site" tickbox under Settings → Reading, and none validate that page builder cached output regenerated against the new URLs. Those are the failure modes that actually tank rankings — and they have nothing to do with which migration tool you chose.
For the complete pre-migration audit, post-launch checklist, and the 12 most common WordPress migration SEO mistakes, see the full guide:
WordPress Migration SEO: Complete Guide to Moving Your Site Without Losing Rankings →