Growth · alternatives · 2026

24 alternatives to I open-sourced my content analysis tool

A tool that analyzes content and suggests search engine optimization improvements. - zackproser/articleoptimizer

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I open-sourced my content analysis tool launched in 2016; newer entries below may have overtaken it.

1. 1
   Outrank▲791

   Keyword research and blogging on auto-pilot for growth

   2025 · outrank.so · its alternatives →

2. 2
   Weekly Content Audit▲319

   10x traffic with data-driven quick fixes

   2024 · storychief.io · its alternatives →

3. 3
   Content Editor 2.0 by Surfer▲158

   Deliver the most relevant pages for any keyword

   2020 · surferseo.com · its alternatives →

4. 4
   SEO Analyzer By Neil Patel▲267

   A free SEO analyzer for your site

   2019 · neilpatel.com · its alternatives →

5. 5WB
   We built an open source tool for journalists to inspect Wikipedia edits▲131

   2014 · blog.twg.ca · its alternatives →

6. 6
   Robinize▲331

   Content optimizer that will improve your Google position

   2022 · robinize.com · its alternatives →

7. 7
   Content Quality Check▲111

   Free SEO tool to optimize your content

   2021 · dashword.com · its alternatives →

8. 8
   SEO Content Editor▲156

   Write and optimize site’s content based on SERP data

   2020 · link-assistant.com · its alternatives →

9. 9
   Simple SEO Tool▲111

   Chrome Extension that simplifies SEO on-page analysis

   2024 · seoextension.info · its alternatives →

10. 10
    SEO Content Optimization Tool▲15

    Free SEO Website Crawler - Online Web spiders for SEO audits

    2024 · semanticrelevance.com · its alternatives →

11. 11
    Back SEO Marketing Software▲91

    An SEO content editor with truly unlimited content editors

    2023 · its alternatives →

12. 12AO
    An Open Source Tool to Combat Clickbait Links▲81

    2016 · links.spince.com · its alternatives →

13. 13
    SEO Analyzer▲10

    Check Your Website’s SEO: Free SEO Analysis Tool

    2017 · neilpatel.com · its alternatives →

14. 14
    SERPtimizer▲85

    All-round SEO tool for link prospecting, competitor analysis

    2018 · serptimizer.com · its alternatives →

15. 15
    Decayed Content Analyzer (Free SEO Tool)▲10

    Identify pages that have declining traffic on your site

    2024 · blitzbear.com · its alternatives →

16. 16
    SwiftRank SEO suite▲60

    Comprehensive reports on website’s performance

    2023 · its alternatives →

17. 17
    SEO Competitor Analyzer▲7

    Free tool to analyze competitor SEO performance

    Mar 2026 · itsnipun.com · its alternatives →

18. 18
    Free content optimization tool for SEO▲10

    ContentSwift - Free content research / optimization tool for SEO. As an alternative for Surfer, Neuronwriter, Frase, etc.. - hilmanski/contentswift

    2023 · github.com · its alternatives →

19. 19
    Web Page Analyzer▲15

    Free marketing analysis for your landing page & website

    2024 · webeval.rage.net · its alternatives →

20. 20
    AI Content Optimizer▲36

    Boost your SEO with AI Text Upgrade & Keyword Match Analysis

    2024 · io.trudov.com · its alternatives →

21. 21
    Free SEO Tool▲13

    100% Free SEO web analysis tool

    2024 · askgalore.com · its alternatives →

22. 22
    textanalyzer.io▲14

    Your Free Swiss Army Knife for Text Statistics

    2024 · textanalyzer.io · its alternatives →

23. 23
    SeoLyzer▲14

    Optimize your content with AI-powered SEO analysis

    2025 · seolyzer.us · its alternatives →

24. 24
    SEOCheckr▲21

    Free SEO tools

    2025 · seocheckr.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →