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SPECIFICTION
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LibreCrawl

librecrawl.com

Free plan WebWindowsmacOSLinuxAPISelf-hosted
Visit librecrawl.com
Spec score 8.5 #7 of 34 in SEO Crawler Software

What it is

LibreCrawl is a web-based SEO crawler for auditing and analyzing websites. It checks technical areas such as meta tags, schema markup, hreflang, social tags and PageSpeed metrics. Playwright rendering lets it crawl JavaScript sites built with React, Vue, Angular or Next.js, in headed or headless mode. The maker says memory profiling and virtual scrolling support stable crawls of more than one million URLs. Results can be exported as CSV, JSON or XML, with custom field selection and no stated export restrictions. LibreCrawl is MIT-licensed and can be self-hosted. Its REST API supports crawl control, settings and exports, and uses session-based authentication for every endpoint. Guest API users are limited to three crawls per 24 hours, tracked by IP address. The maker says the software does not track users, collect analytics or send crawl data back to itself, and encourages self-hosting for privacy. It is free, with no subscriptions or paid tiers. The maker directs bug reports and feature requests to GitHub Issues and discussions to GitHub Discussions.

Spec sheet

Purpose
LibreCrawl is a web-based SEO crawler for website audits and analysis.Read 7 Oct 2026 · librecrawl.com
Intended users
The maker describes LibreCrawl for SEO consultants, agency developers, enterprise SEO teams, and open-source contributors.Read 7 Oct 2026 · librecrawl.com
Platforms
The maker's repository describes Windows and Linux/Mac startup scripts and Docker installation; the application is accessed through a web browser.Read 7 Oct 2026 · github.com
Free plan
YesRead 21 Sep 2026 · librecrawl.com
Integrations
The maker lists PageSpeed metrics and Playwright rendering; its API documentation describes REST endpoints for crawl control, settings, and exports.Read 7 Oct 2026 · librecrawl.com
Support
The maker directs users to GitHub Issues for bug reports and feature requests, and GitHub Discussions for conversations.Read 7 Oct 2026 · librecrawl.com
Founded
2025Read 28 Sep 2026 · librecrawl.com
API access
YesRead 21 Sep 2026 · librecrawl.com
API authentication
The REST API uses session-based authentication and requires a session for all endpoints.Read 7 Oct 2026 · librecrawl.com
Backlink analysis
NoRead 21 Sep 2026 · librecrawl.com
Competitor research
NoRead 21 Sep 2026 · librecrawl.com
Exports
It exports crawl data as CSV, JSON, or XML, with custom field selection and no stated export restrictions.Read 7 Oct 2026 · librecrawl.com
Guest limit
The API documentation states guest users are limited to three crawls per 24 hours, tracked by IP address.Read 7 Oct 2026 · librecrawl.com
JavaScript rendering
It uses Playwright to crawl JavaScript sites, including React, Vue, Angular, and Next.js, in headed or headless mode.Read 7 Oct 2026 · librecrawl.com
Keyword research
NoRead 21 Sep 2026 · librecrawl.com
Open source
LibreCrawl is MIT-licensed and can be self-hosted.Read 7 Oct 2026 · librecrawl.com
Rank tracking
NoRead 21 Sep 2026 · librecrawl.com
Scale
The maker says its memory profiling and virtual scrolling support stable crawling of more than one million URLs.Read 7 Oct 2026 · librecrawl.com
Security and privacy
The maker says LibreCrawl does not track users, collect analytics, or phone home with crawl data, and encourages self-hosting for privacy.Read 7 Oct 2026 · librecrawl.com
SEO audits
It analyzes meta tags, schema markup, hreflang, social tags, PageSpeed metrics, and other technical SEO issues.Read 7 Oct 2026 · librecrawl.com
Site audit
YesRead 21 Sep 2026 · librecrawl.com

Plans and prices

LibreCrawl Free Free and open source; no subscriptions. Unlimited URLs · no paid tiers · MIT license Read 7 Oct 2026 · librecrawl.com

Every LibreCrawl plan and price →

Strong points and limits

Strong points

  • Checks multiple technical SEO areas
  • Renders JavaScript sites with Playwright
  • Exports CSV, JSON and XML
  • MIT-licensed and self-hostable
  • No paid tiers or subscriptions

Limits

  • Guest API limited to three crawls per 24 hours
  • Every API endpoint requires session authentication
  • No keyword research or rank tracking

Who it suits

It is described for SEO consultants, agency developers, enterprise SEO teams and open-source contributors. Self-hosting and API access may suit teams that want control over deployment or crawl workflows.

Verdict

LibreCrawl offers technical audits, JavaScript rendering, exports and a REST API without subscription fees. Note the guest API limit and session requirement, or consider self-hosting.

Where Specifiction places it

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