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Fast & Free
Developer Utilities
No sign-up, no install, no nonsense.
CSS conversions, formatters, generators and more. All instant, all free.
Private by default
Everything runs in your browser. Nothing is sent to any server.
Instant results
No loading spinners, no API calls. Output appears as you type.
No sign-up ever
No email, no account, no paywall. Just open a tool and use it.
Works everywhere
Fully responsive on desktop, tablet, and mobile. Dark mode built in.
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FAQ
Frequently Asked Questions
Everything you need to know about GeekDas and its tools.
Most tools run entirely in your browser using client-side JavaScript, no internet connection is needed after the page loads. A small number of tools (like HTML to PDF) send data to our server for processing, but results are never stored.
Yes. Client-side tools (converters, formatters, generators) process everything locally in your browser, your data never leaves your device. For server-assisted tools, data is used only to generate the output and is discarded immediately.
PX ↔ REM, PX ↔ EM, PX ↔ VW, and related converters use standard CSS formulas. You can set a custom root font size (default 16px) or viewport width to match your project configuration, giving you accurate values for any setup.
Yes. All tools are fully responsive and work on phones and tablets. The layout adapts to your screen size so you can convert, format, or generate values on any device.
The Hash Generator supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512. All hashing is done client-side in your browser, your input text is never sent to a server.
No. Passwords are generated entirely in your browser using the Web Crypto API. Nothing is logged, stored, or sent anywhere, each password exists only in your browser session.
Absolutely. If there is a utility you wish existed on GeekDas, use the contact form or reach us at dev.geekdas@gmail.com. We regularly add new tools based on community requests.
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