ToolHub is a growing collection of free, fast, browser-based tools built for SEO professionals and developers who are tired of paying for simple things. Schema generators, SERP previewers, regex explainers, JSON converters — all in one place, forever free.
Hand-picked based on traffic, usefulness, and how often developers and SEOs come back for more.
Visually build JSON-LD structured data for FAQ, Product, Article, BreadcrumbList, and more. No coding needed — just fill the form and copy the output straight into your page head.
↗Type your title tag and meta description and see a pixel-perfect preview of how Google will display your page in search results — before you ever hit publish. Desktop and mobile views.
↗Paste any JSON, CSV, or XML data and convert it instantly. Clean interface, no file size limits, no ads, no watermarks. The converter most dev tool sites charge you $9/month for.
↗Write or paste a regular expression and get a real-time match highlighter plus a plain-English breakdown of exactly what the pattern does. Great for beginners and regex pros alike.
↗Build a properly formatted robots.txt file through a clean form interface. Allow or disallow crawlers by rule, preview the file, and validate it — all without touching a text editor.
↗Upload any image — a logo, product photo, or screenshot — and extract your brand's color palette instantly. Get every color in HEX, RGB, and HSL with one-click copy. No upload to server.
↗Every ToolHub tool follows the same three-step experience. No learning curve, no wasted time.
Browse by category or search by keyword. Every tool has a clear description so you always know exactly what you're getting into.
Each tool has a minimal, well-labeled interface. Paste your data, tweak the settings, and the output updates in real time.
One click to copy the result to your clipboard. No account needed, no email required, no watermark on the output. You're done.
ToolHub runs entirely in your browser. Bookmark it, share it with your team, and return whenever you need it — it's always free.
23 tools across 3 categories — and we're adding more every week based on what you actually need.
Every other tool site is cluttered with ads, paywalls, and popups. We decided to build the version we actually wanted to use.
Every tool on ToolHub is 100% free and will remain free. No premium tier, no credit system, no "5 uses per day" limits. We hate those models too, so we simply don't use them.
Every tool runs entirely client-side using JavaScript. Nothing you paste or upload is ever sent to a server. We don't store your content, we don't log your inputs, and we never will.
No server round-trips, no waiting for APIs to respond. Tools load in under a second and produce output in real time as you type. That's the experience you should always get.
Each tool has been designed with real SEOs and developers in mind. Clean layout, labeled inputs, sensible defaults, and a one-click copy button on every output. No friction, just results.
Practical guides on SEO, development, and how to get more out of every tool on this site.
Structured data is no longer optional. Google uses it to power rich results, knowledge panels, and AI-generated summaries. Here's everything you need to know to get started today.
Regular expressions look intimidating but follow a simple logic once you learn the building blocks. This guide walks you from zero to confidently writing and debugging your own patterns.
Two pages fighting for the same keyword is one of the most common SEO mistakes — and one of the easiest to fix once you know it's happening. Here's a step-by-step process to audit and resolve it.
ToolHub has everything you need — schema generators, SERP previewers, JSON converters, regex testers, and more. Free, fast, and private. Start using them right now.