# Superflow free tools

> Free tools for checking whether AI systems can read your site, validating structured data, and handling everyday web work. No login, no email gate, no ads.

Every working tool below also publishes a Markdown copy of its page at the same path with a .md suffix, for agents and scripts. The human pages are at https://usesuperflow.ai/tools

## AI visibility

- [AI Visibility Checker](https://usesuperflow.ai/tools/ai-visibility-checker) — See whether ChatGPT, Claude, and Perplexity can actually read your site. Markdown: https://usesuperflow.ai/tools/ai-visibility-checker.md
- [robots.txt AI Checker](https://usesuperflow.ai/tools/robots-txt-ai-checker) — Test your robots.txt against every AI crawler that matters. Markdown: https://usesuperflow.ai/tools/robots-txt-ai-checker.md
- [llms.txt Generator](https://usesuperflow.ai/tools/llms-txt-generator) — Generate a spec-correct llms.txt and llms-full.txt for any site. Markdown: https://usesuperflow.ai/tools/llms-txt-generator.md
- [Markdown for Agents](https://usesuperflow.ai/tools/markdown-for-agents) — Turn your pages into clean Markdown you can host for AI agents to read. Markdown: https://usesuperflow.ai/tools/markdown-for-agents.md

## Structured data

- [JSON-LD Validator](https://usesuperflow.ai/tools/json-ld-validator) — Check your structured data against Schema.org and what search engines accept. Markdown: https://usesuperflow.ai/tools/json-ld-validator.md
- [JSON-LD Generator](https://usesuperflow.ai/tools/json-ld-generator) — Build valid schema markup from a URL, then paste it into your page. Markdown: https://usesuperflow.ai/tools/json-ld-generator.md

## Social and sharing

- [Social Preview Checker](https://usesuperflow.ai/tools/social-preview-checker) — See how your link renders on X, LinkedIn, Slack, and Google before you post it. Markdown: https://usesuperflow.ai/tools/social-preview-checker.md

## Site quality

- [Favicon Checker](https://usesuperflow.ai/tools/favicon-checker) — Find out whether your favicon actually loads, or just looks declared. Markdown: https://usesuperflow.ai/tools/favicon-checker.md
- Website Launch Checklist (not published yet) — An interactive pre-launch checklist you can share with a client.
- [Tech Stack Detector](https://usesuperflow.ai/tools/tech-stack-detector) — Find the platform, theme, apps, and analytics behind any site. Markdown: https://usesuperflow.ai/tools/tech-stack-detector.md
- [Review like Paul Graham](https://usesuperflow.ai/tools/review-like-paul-graham) — Get your page judged on clarity, a specific user, and plain language. Markdown: https://usesuperflow.ai/tools/review-like-paul-graham.md
- [Review like Steve Jobs](https://usesuperflow.ai/tools/review-like-steve-jobs) — Judge your page on focus, simplicity, and what you could remove. Markdown: https://usesuperflow.ai/tools/review-like-steve-jobs.md
- [Review like Peter Thiel](https://usesuperflow.ai/tools/review-like-peter-thiel) — Monopoly or commodity, 10x or incremental, secret or consensus. Markdown: https://usesuperflow.ai/tools/review-like-peter-thiel.md
- [Review like Elon Musk](https://usesuperflow.ai/tools/review-like-elon-musk) — Question the requirement, delete the part, and count the steps to value. Markdown: https://usesuperflow.ai/tools/review-like-elon-musk.md
- [Review like Travis Kalanick](https://usesuperflow.ai/tools/review-like-travis-kalanick) — Time to first value, form friction, and both sides of a market. Markdown: https://usesuperflow.ai/tools/review-like-travis-kalanick.md
- [Review like a YC Partner](https://usesuperflow.ai/tools/review-like-yc-partner) — Four YC partner lenses on your landing page: message, conversion, distribution, idea. Markdown: https://usesuperflow.ai/tools/review-like-yc-partner.md
- [Review like Aaron Epstein](https://usesuperflow.ai/tools/review-like-aaron-epstein) — One call to action, clear before clever, and how fast you see the product work. Markdown: https://usesuperflow.ai/tools/review-like-aaron-epstein.md
- [Review like Pete Koomen](https://usesuperflow.ai/tools/review-like-pete-koomen) — Count the steps to your Aha moment, the signup friction, and what to test first. Markdown: https://usesuperflow.ai/tools/review-like-pete-koomen.md
- [Review like Gustaf Alströmer](https://usesuperflow.ai/tools/review-like-gustaf-alstromer) — Who your first customer is, and whether this copy came from talking to them. Markdown: https://usesuperflow.ai/tools/review-like-gustaf-alstromer.md
- [Review like Jared Friedman](https://usesuperflow.ai/tools/review-like-jared-friedman) — Is a real problem stated, who has it, and what they do about it today. Markdown: https://usesuperflow.ai/tools/review-like-jared-friedman.md
- [Lookalike Test](https://usesuperflow.ai/tools/lookalike-test) — See how your page's structure and copy differ from the sites you admire. Markdown: https://usesuperflow.ai/tools/lookalike-test.md

## Campaigns

- [UTM Builder](https://usesuperflow.ai/tools/utm-builder) — Build campaign URLs on one convention, and see the channel each will land in. Markdown: https://usesuperflow.ai/tools/utm-builder.md

## Assets

- [Full Page Screenshot](https://usesuperflow.ai/tools/full-page-screenshot) — Capture any page end to end. No watermark, no extension. Markdown: https://usesuperflow.ai/tools/full-page-screenshot.md
- [Alt Text Generator](https://usesuperflow.ai/tools/alt-text-generator) — Write accurate alt text for a whole page of images in seconds. Markdown: https://usesuperflow.ai/tools/alt-text-generator.md
- [MD5 Hash Generator](https://usesuperflow.ai/tools/md5-generator) — Hash any text to MD5, or call the same endpoint from a script. Markdown: https://usesuperflow.ai/tools/md5-generator.md
- [Markdown Viewer](https://usesuperflow.ai/tools/markdown-viewer) — Open and read any Markdown file. Nothing leaves your browser. Markdown: https://usesuperflow.ai/tools/markdown-viewer.md

## About

These tools are published by Superflow, a website and creative-asset review tool whose agents watch every page of a site and report what changed. https://usesuperflow.ai