FREE SEO TOOLS
INSERT NO COIN
I'm Puneet, an SEO. I build the tools I wish I had, then give them away. Five of them so far.
No accounts. No API keys. No tracking. Most of them run on your own machine.
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Open SEO Crawler
A free Screaming Frog alternative you run on your own computer. Point it at a site and it walks every page looking for technical SEO problems. No URL cap, no account, no cloud.
It also checks what AI search sees. After a crawl it requests a sample of pages as Googlebot, Bingbot, GPTBot, PerplexityBot and friends, then flags any page a crawler gets blocked from, redirected away from, or handed a thinner version of.
- Presets for 10 CMSs
- Optional headless JavaScript rendering
- XLSX export, plus an AI brief you can paste into any assistant
- One-line install on Linux, macOS or Windows, updates itself daily
| STAT | THIS | SF FREE |
|---|---|---|
| URL limit | Unlimited | 500 |
| Price | Free, MIT | Free |
| Open source | Yes | No |
| Auto-update | Daily | Manual |
| CMS presets | 10 CMSs | None |
From the comparison in the project README. Screaming Frog paid has no URL limit and costs £199 a year.
SCREENSHOTS · 100-PAGE TEST CRAWL OF BOOKS.TOSCRAPE.COM
SEO Side Panel
A Chrome extension that stays open beside every page you visit and audits it from the page's own code. Every finding comes with the fix written next to it.
It answers two questions most SEO extensions skip: what Google actually gets from this URL, and what ChatGPT, Claude and Perplexity get, which is usually not the same thing.
- Titles and descriptions measured in pixels, not characters
- Raw HTML next to the rendered page, so you see what AI crawlers miss
- JSON-LD errors named by block and line
- No account, no server, no AI
Bulk AI CLI Connector
A free plugin on WordPress.org that lets Claude, ChatGPT, MCP agents and your own scripts read and rewrite a site's SEO in bulk over the REST API. There is no AI inside it and it makes no requests of its own. Each call signs in as a WordPress user and can only do what that user could do in wp-admin.
- Yoast and Rank Math titles, descriptions, canonical and robots, up to 100 posts a call
- Custom JSON-LD per post and per term, merged into the SEO plugin's graph
- Elementor and Beaver Builder page copy, with undo and dry run
- Redirects, image alt text by URL, sitemap cache flush
- Bundled MCP server for Claude Desktop
robots.txt Tester
Google retired its robots.txt Tester in 2023. This brings it back with proper RFC 9309 matching, and adds the bit the original never had: one click tests a URL against every well-known search and AI crawler.
Most free checkers use Python's built-in parser, which ignores * and $ wildcards and happily says "allowed" when Googlebot would be blocked. This one follows Google's real rules: the most specific group wins, the longest pattern wins, ties go to Allow.
User-agent: * Disallow: /*?sessionid= User-agent: GPTBot Disallow: /blog/ User-agent: Google-Extended Disallow: /
SCREENSHOT · THE ALL-BOTS MATRIX
Turn Off AI Overviews & Ads
A tiny Chrome extension that hides Google's AI Overviews and ads from search results, before they paint, so there is no flash. Two toggles. Access to Google Search pages only, collects nothing.
PLAYER 1
Puneet Singh. I do SEO for a living, and these tools come out of that work: the checks I kept running by hand, turned into something anyone can use. I also contribute to claude-seo, an open-source SEO skill set for Claude Code.
Found a bug or have an idea? Open an issue on the tool's GitHub page, or say hi on LinkedIn.