About ToolStack

ToolStack is a collection of 16 free online tools — calculators, generators, converters and text/image utilities — built around one idea: everyday tasks online should be instant, private and free.

Our approach

• Everything runs in your browser. There is no backend processing your data. When you compress an image or generate a password here, your input never leaves your device.
• No dark patterns. No sign-up walls, no watermarks, no expiring "free" outputs, no newsletter pop-ups over the tool you came to use.
• Fast by default. The site is hand-written HTML, CSS and JavaScript with no heavy frameworks, so pages load quickly even on mobile connections.

Who runs this site?

ToolStack is an independent project maintained by a small team of developers who needed these tools themselves and got tired of ad-covered alternatives. If you have feedback, a bug report or an idea for a new tool, we would love to hear from you.

How is it free?

Hosting a static site costs very little, and because all processing happens on your device, there are no computing bills to pass on. The site may display unobtrusive advertising in the future to cover hosting costs; it will never gate or degrade the tools themselves. See our Privacy Policy for details.