⚡ Search Engine Optimization Tools in Japan

Search engine optimization (SEO) tools help website owners improve their visibility in search engines by identifying technical issues, optimizing metadata and content, and analyzing factors that influence ranking, such as keywords and backlinks.

Japan is an East Asian country with a population of around 125 million people.

According to our research, search engine optimization tools are detected on 15.1% of websites from Japan.

⭐ Most Popular in 2026

The following chart shows the top SEO tools on websites in Japan in 2026, based on market share.

The most popular is All in One SEO, which dominates the market with a substantial 65% share.
It is followed by Yoast SEO with 29.4% and Mieruca with 3.8%.

🚀 Highlights

Here is a list of the top tools that are more popular in Japan than worldwide.
Differences between global and country rankings are shown in parentheses.

✨ Best SEO Tools

Below is a more detailed list of the top 25 of the 27 SEO tools used on sites from Japan, ranked by their market share.

RankNameMarket share
1
All in One SEO
West Palm Beach, Florida, United States

A WordPress SEO plugin that helps optimize websites for search engines by managing metadata, sitemaps, and structured data.

Free$49.60+/year
2
Yoast SEO
Wijchen, Netherlands

A WordPress search engine optimization plugin that helps optimize website content, metadata, and technical SEO settings to improve visibility in search engines.

Free$99/year
3
Mieruca
Tokyo, Japan

A Japanese SEO platform that provides keyword analysis, competitor analysis, content creation, generative engine optimization, and numerous AI-powered optimization tools.

4
Rank Math
New Delhi, India

A search engine optimization plugin for WordPress that makes it easy to optimize content with built-in suggestions based on widely accepted best practices.

Free$7.99+/month
5
Schema.press
Houston, Texas, United States

A WordPress plugin that automatically generates Schema.org structured data markup in JSON-LD format.

Free$79.20+/year
6
Yext
New York, United States

A cloud-based digital experience platform that includes listings management, generative AI and SEO tools, a natural language search engine and analytics.

$499+/year
7
Ahrefs
Singapore

A subscription-based all-in-one SEO toolset that includes Site Audit, Website Authority Checker, Keywords Explorer, Rank Tracker, Backlink Checker and more.

$129+/month
8
Schema & Structured Data
Hyderabad, India

Adds Google Rich Snippets markup according to Schema.org guidelines to structure your site for SEO.

FreeOpen source$99+/year
9
Web Vitals
Mountain View, California, United States

A lightweight JavaScript library for measuring Core Web Vitals and related performance metrics on real users in the browser.

FreeOpen source
10
SEO Framework
Alphen aan den Rijn, Netherlands

A WordPress SEO plugin that automates on-page optimization by generating metadata, sitemaps, and structured data according to search engine guidelines.

Free$84+/year
11
Avada SEO Suite
Hanoi, Vietnam

A Shopify application that includes an SEO audit, speed optimizer with image compression, schema markup, and sitemaps.

Free$34.95+/month
12
SmartCrawl
Melbourne, Australia

A WordPress SEO plugin that analyzes content and automates on-page optimization to improve search visibility and indexing.

Free$36+/year
Slim SEO
Hanoi, Vietnam

A lightweight WordPress SEO plugin that automates core optimization tasks with minimal configuration.

FreeOpen source$59+/year
14
SEOmatic
Webster, New York, United States

An SEO plugin for Craft CMS to manage meta tags, JSON-LD microdata, Twitter Cards tags, Facebook OpenGraph tags, sitemaps and robots.txt directives.

$99/year
15
Schema Pro
Pune, Maharashtra, India

A WordPress plugin that allows website owners & marketers to create schema markup without writing a single line of code.

$69+/year
16
Prerender
Seattle, Washington, United States

A middleware that pre-renders JavaScript-powered websites into static HTML files, ensuring that search engine crawlers can access and index the content effectively.

Free$90+/month
17
Squirrly SEO
London, United Kingdom

An all-in-one SEO plugin for WordPress featuring an AI SEO Assistant for expert guidance, keyword research and analysis, and post and page optimization.

Free$9.99+/month
18
WordLift
Rome, Italy

An AI-powered SEO platform that enhances brand visibility across search engines, including AI assistants and next-generation platforms.

€200+/month
19
Schema App
Guelph, Ontario, Canada

Structured Data WordPress plugin automatically generates automatically creates and deploys Schema.org markup for pages, posts, authors, and other content on your WordPress site.

Free$$$
20
Crownpeak DQM
Denver, Colorado, United States

A SaaS platform that scans websites to enforce digital policies and standards across accessibility, SEO, brand consistency, and compliance.

$$$
21
All In One Schema Rich Snippets
Pune, Maharashtra, India

A WordPress plugin to implement rich snippets in search results to increase CTR and improve rankings.

FreeOpen source
22
Silktide
San Francisco, California, United States

A web governance platform that helps large organizations improve accessibility, content quality, and user experience.

$$$
SEOPress
Morcenx-la-nouvelle, France

A WordPress SEO plugin that helps optimize website visibility in search engines by managing metadata, indexing rules, and technical SEO settings.

FreeOpen source$49+/year
24
Siteimprove
Copenhagen, Denmark

A cloud-based SaaS platform that combines accessibility, digital governance, analytics, and search optimization to help organizations manage and improve website quality and compliance.

$$$
25
Acquia Web Governance
Boston, Massachusetts, United States

A website governance and accessibility platform that scans, audits, and optimizes digital content to ensure compliance, quality, and user experience.

$$$

👉 See Also

🗃️ About This Data