Question 1

Is ZeroKit really free?

Accepted Answer

Yes — all 52 tools are completely free with no usage limits. There are no hidden charges, no freemium upsells, and no feature gates. You can use every tool as much as you want.

Question 2

How does client-side processing work?

Accepted Answer

When you upload a file or paste text, it stays in your browser's memory. JavaScript processes it locally using Web APIs — nothing is sent to our servers. Once you close the tab, the data is gone.

Question 3

Which tools use the server?

Accepted Answer

Only 7 tools use server features: Paste & share (stores encrypted pastes), URL shortener, and the 5 AI-powered tools (which call Claude via our API). Every other tool is 100% client-side.

Question 4

Can I use ZeroKit for sensitive data?

Accepted Answer

Absolutely. Client-side tools never transmit your data. For AI tools, we don't log inputs or outputs. For maximum security, use the client-side tools — they work even with your network disconnected.

Question 5

Does ZeroKit work on mobile?

Accepted Answer

Yes. ZeroKit is fully responsive and works on phones and tablets. All tools are touch-friendly with a mobile-optimised layout and bottom navigation.

Question 6

Can I self-host ZeroKit?

Accepted Answer

Yes. ZeroKit is built with Next.js and can be deployed to Vercel, Netlify, or any Node.js host. Clone the repo, add your environment variables, and deploy.

Every tool you need.

JSON formatter / validator

Image compressor

Password generator