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Semflow alternatives · SEO Plugins

Open-source alternatives to Semflow

Semflow is not described as open source on its own site. 12 of the 78 other SEO plugins and apps in this directory are open source, according to their own sites.

Semflow is a paid product with a free trial, starting at $10 per month, billed annually ($14 billed monthly). All of them are free or have a free plan.

12 tools · Listings checked up to Oct 23, 2026 · Where the facts come from

How each one differs from Semflow

  1. AI SEO Copilot

    Free, open-source on-page SEO checker inside the Webflow Designer

    • AI SEO Copilot is free. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • AI SEO Copilot has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • AI SEO Copilot is open source, according to its own site.
    AI SEO Copilot vs SemflowAI SEO Copilot pricing and details

  2. Site Kit by Google

    Google's free WordPress plugin for Search Console and Analytics stats

    • Site Kit by Google is free. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • Site Kit by Google has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • Site Kit by Google is open source, according to its own site.
    Site Kit by Google pricing and details

  3. Schema & Structured Data for WP & AMP

    WordPress schema plugin with 35+ types and AMP support

    • Schema & Structured Data for WP & AMP starts at $99 per year for 1 site. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • Schema & Structured Data for WP & AMP has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • Schema & Structured Data for WP & AMP is open source, according to its own site.
    Schema & Structured Data for WP & AMP pricing and details

  4. WPSSO Core

    WordPress plugin for Schema markup and social sharing meta tags

    • WPSSO Core starts at $49 one-time for a lifetime license on 1 site. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • WPSSO Core has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • WPSSO Core is open source, according to its own site.
    WPSSO Core pricing and details

  5. 301 Redirects - Redirect Manager

    WordPress plugin for 301, 302 and 307 redirects with a 404 error log

    • 301 Redirects - Redirect Manager starts at $9.99 per month, or $49 one-time for a 1-site lifetime license. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • 301 Redirects - Redirect Manager has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • 301 Redirects - Redirect Manager is open source, according to its own site.
    301 Redirects - Redirect Manager pricing and details

  6. 404 to 301

    Free WordPress redirect manager with detailed 404 error logs

    • 404 to 301 is free. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • 404 to 301 has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • 404 to 301 is open source, according to its own site.
    404 to 301 pricing and details

  7. Schema - All In One Schema Rich Snippets

    Free WordPress plugin for adding schema to posts one at a time

    • Schema - All In One Schema Rich Snippets is free. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • Schema - All In One Schema Rich Snippets has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • Schema - All In One Schema Rich Snippets is open source, according to its own site.
    Schema - All In One Schema Rich Snippets pricing and details

  8. Redirection

    Free WordPress plugin for managing 301 redirects and 404 errors

    • Redirection is free. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • Redirection has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • Redirection is open source, according to its own site.
    Redirection pricing and details

  9. XML Sitemap Generator for Google

    Free WordPress plugin that builds and updates XML and HTML sitemaps

    • XML Sitemap Generator for Google is free. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • XML Sitemap Generator for Google has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • XML Sitemap Generator for Google is open source, according to its own site.
    XML Sitemap Generator for Google pricing and details

  10. Media File Renamer

    WordPress plugin that renames media files to descriptive names

    • Media File Renamer starts at $39 per year for 1 website. Semflow starts at $10 per month, billed annually ($14 billed monthly).
    • Media File Renamer has a free plan. Semflow does not, though it has a free trial.
    • Only Semflow lists a browser extension.
    • Media File Renamer is open source, according to its own site.
    Media File Renamer pricing and details

Common questions

Is there an open-source alternative to Semflow?

Yes. AI SEO Copilot, Site Kit by Google, Schema & Structured Data for WP & AMP, WPSSO Core, 301 Redirects - Redirect Manager, 404 to 301, Schema - All In One Schema Rich Snippets, Redirection and 4 more are open source, according to their own sites.

Is Semflow open source?

Semflow is not described as open source on its own site. The listing was checked on Oct 23, 2026 against the pages it cites.

When was this checked?

Every listing on this page was checked on Oct 23, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Semflow: the alternatives its listing names first, then the tools that share the most features with it.