Help Center
Answers to the questions we get asked most.
Is everything on this site really free?
Yes. Every tool - interview questions, AI prompts, calculators, wallpapers, PDF tools and the AI tools directory - is free to use, with no usage limits.
Do I need to create an account?
No. Nothing on this site requires sign up or login. Just open a tool and use it.
How accurate are the calculators?
We aim for accuracy on standard formulas (like EMI or BMI), but results are for general informational purposes. For example, CGPA-to-percentage conversion varies by university, so always double check against your institution's official formula for anything that matters academically or financially.
Is my data safe when I use the PDF tools?
Yes. Merge, split, rotate and images-to-PDF all run entirely in your browser using JavaScript. Your files are never uploaded to our servers - they never leave your device.
Can I download wallpapers for free?
Yes, every wallpaper on the site is free to download in the resolution shown, with no watermark or sign up required.
How do I use the AI prompts?
Open any prompt on the AI Prompt Library, tap the copy icon, and paste it into ChatGPT, Claude, Midjourney, Gemini or whichever tool it's written for. Prompts with [placeholders] are meant to be filled in with your own details before you send them.
I found a bug or a broken link. What should I do?
Please let us know through the Feedback page - include the page URL if you can. We read every submission.
Can I suggest a new tool, calculator, or interview topic?
Yes, we'd love to hear it. Use the Feedback page and select "Feature Request."
Still have a question? Send us feedback and we'll get back to you.