⚡ Crazy Tools
Browse Tools
✨ 230+ tools · 100% free · no signup

Every tool you need,
in one glass box.

PDF, image, SEO, developer, accounts, sales, ads and teacher tools — fast, private, and free. Everything runs right in your browser.

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GST Calculator Merge PDF Compress Image JSON Formatter Meta Tag Generator Invoice Generator
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Browse by category

Pick a category to see every tool inside it.

🔥 Popular tools

The tools people reach for most.

🆕 Latest additions

Freshly added to the library.

Why Crazy Tools

Built to be fast, private and genuinely free.

⚡

Instant results

No page reloads or waiting rooms — every tool calculates or converts the moment you click.

🔒

Private by default

Most tools run entirely in your browser — your files and numbers never leave your device.

🆓

Actually free

No paywalls, no watermarks, no forced signups. Use what you need, whenever you need it.

📱

Works everywhere

Fully responsive — every tool works just as well on your phone as it does on your desktop.

Free Online Tools — PDF, Image, SEO, Developer, Accounts, Sales & More

Crazy Tools is a free online tools website for anyone who needs a quick, reliable utility — no downloads, no account, no watermarks. 233+ tools, organised by category and searchable in seconds.

What you can do here

  • Compress, merge & split PDFs
  • Convert, crop & optimise images
  • Generate GST invoices & calculate EMI
  • Format & validate JSON, XML, CSV
  • Check meta tags and build UTM links
  • Create printable classroom worksheets

Why people use it

  • Private — most tools run in your browser
  • Instant — no installs, no plugins
  • Free — no signup wall, no hidden limits
  • Everywhere — works on mobile and desktop
  • Growing — new tools added regularly

Nine tool categories

100% free to use with no signup required — see our About page for how we keep it that way.

From the blog

Guides and tips on getting more out of Crazy Tools' free tools.

View all posts →

Frequently asked questions

Everything you need to know about using Crazy Tools.

Is Crazy Tools really free to use?

Yes. Every tool on Crazy Tools is 100% free, with no signup, no trial period, and no watermarks on your output. We plan to keep the core tools free going forward.

Do I need to create an account?

No account is required for any tool. Just open the tool page and start using it — your work isn't tied to a login.

Is it safe to upload my files or data?

Most Crazy Tools tools (PDF, image, and developer tools especially) run entirely inside your browser, so your files never leave your device. Where a tool does need to send data for processing, we only use it to generate your result and don't store it. See our Privacy Policy for details.

Which categories of tools does Crazy Tools offer?

Crazy Tools currently offers PDF, Image, SEO, Developer, Accounts, Sales, Ads & Marketing, Teacher, and File tools — 233+ tools in total, spread across 9 categories.

Can I use Crazy Tools on my phone?

Yes, every tool is fully responsive and works the same way on mobile, tablet, and desktop browsers.

How do I find a specific tool quickly?

Use the search bar at the top of the homepage (or press "/") and start typing — matching tools appear instantly. You can also browse the full All Tools directory by category.

I have a suggestion for a new tool — who do I contact?

We'd love to hear it. Reach out any time via our Contact page and we'll consider it for a future update.