There are 24 free tools in five groups:

• Calculators: Salary (8th Pay Commission), Electricity Consumption, BMI, Loan, Date, Age and Percentage.
• PDF & Images: PDF Merger, PDF Splitter, PDF Compressor, PDF Cropper, Image to PDF and Image Compressor.
• Generators: Invoice, QR Code, WhatsApp Link, Password, YouTube Thumbnail Downloader and HTML Viewer.
• Productivity: Word Counter, Notepad and To-Do List.
• Fun & Utility: Speaker Cleaner and Water Sort Puzzle.

Yes. Every tool listed on this page is free to use. You don't need to pay or add a card to use any of them.

No. Open the tool and start using it right away. There is no account or registration step.

Yes. The tools are built to work on phones, tablets and desktops. For the best experience use the latest version of Chrome, Edge, Firefox or Safari.

1. Open the PDF Merger.
2. Add all the PDF files you want to combine.
3. Arrange them in the order you need.
4. Click merge and download the combined PDF.

Use the PDF Splitter. You can divide a large PDF into smaller files or pull out just the pages you need. Your original file is not changed.

The PDF Compressor reduces file size while keeping the text readable. PDFs with many large images shrink the most, and images inside may look slightly softer. Keep your original file in case you need full quality later.

The PDF Cropper removes unwanted white margins or lets you keep only a selected area of a page. It is handy for scanned documents and for fitting content to a form.

Open Image to PDF, add your photos, set the page options you like and create the PDF. Each image becomes a page in a single document, which works well for ID proofs, certificates and scanned notes.

Run the photo through the Image Compressor, then check the new file size against the limit on the form. If it is still too large, compress again or use a lower quality setting.

The Salary Calculator gives an estimate of net salary, deductions and tax. The final figures depend on government notifications and your department's rules, so treat the result as a guide, not an official pay slip.

The Loan Calculator shows your monthly payment, total interest and an amortization schedule from the amount, interest rate and tenure you enter. Your bank's final offer may differ because of processing fees and other charges.

In the Electricity Consumption Calculator, add each appliance with its power and daily hours of use. You get usage and cost for every appliance. For a closer estimate, use the per-unit rate printed on your own bill.

No. The BMI Calculator gives a general indication from your height and weight. It does not account for muscle mass, age or medical history, so talk to a doctor before making health decisions.

• Age Calculator: your exact age in years, months and days.
• Date Calculator: days between dates, countdowns and scheduling with an interactive calendar.
• Percentage Calculator: percentage, increase, decrease and more, with explanations.

Yes. The Invoice Generator offers customizable templates and calculates totals automatically. Check all details, tax rates and numbers before you send an invoice to a client.

The QR Code Generator lets you choose colors and add a logo. Always scan the final code with your phone before printing it. Keep strong contrast between the code and its background so it scans easily.

Open the WhatsApp Link Generator, enter the phone number with its country code and add an optional ready-made message. Share the link, and anyone who taps it opens a chat with you.

Paste the video link into the YouTube Thumbnail Downloader and pick the quality you want. Thumbnails belong to their creators, so use them only for your own videos or where you have permission.

The Password Generator creates random passwords with the length and character types you choose. Use a different password for every account, and store them in a password manager rather than a plain note.

• Word Counter: words, characters and reading time for any text.
• Notepad: a simple text editor with formatting options.
• To-Do List: tasks with priorities, due dates and progress tracking.
• HTML Viewer: preview and debug HTML code in real time.

Keep a separate copy of anything important you write in these tools.

The Speaker Cleaner plays sound waves that can help clear dust or water from a phone speaker. Start at a low volume. It is not a repair, so if the speaker is damaged, visit a service center.

The site runs on HTTPS, and the tools are built to process what you enter without asking for any account details. Even so, avoid putting highly sensitive information such as bank details or passwords into any online tool unless you need to.

For full details on what we collect and how we use it, read our Privacy Policy.

Some tools, such as the Notepad and To-Do List, may keep your content in your browser so it is there when you return. Clearing your browser data can remove it, so copy or download anything important.

1. Refresh the page and try again.
2. Update your browser or try a different one.
3. Turn off ad blockers or extensions for this site.
4. Clear your browser cache.

Still stuck? Tell us which tool and device you used on the Contact Us page.

Very large files need more memory and time, especially on older phones. Close other tabs, keep the page open until the job finishes, and try a smaller file or fewer files at once. You can also compress or split the file first.

Check that your browser is allowed to download files from this site and that your device has free storage. On mobile, look in your browser's downloads list or the Files app, since the file may have saved without a notification.

Send your idea through the Contact Us page. Describe what the tool should do and we will consider it for a future update.