Text & Writing
How to Remove Duplicate Lines from a List (Free Tool)
Remove duplicate lines from any list free online — dedupe emails, keywords or data instantly, and sort or clean the result too.
1 min read
Blog
Practical guides on money, documents, images, writing and code, and how to get a reliable answer from our free tools.
Tips & Guides
How to Convert km/h to mph (and mph to km/h)
Divide km/h by 1.609344 to get mph (100 km/h = 62.14 mph); multiply mph by 1.609344 for km/h. Mental shortcut, table, Indian speed limits and m/s.
5 min read
Text & Writing
How to Write Numbers in Words for Cheques (Lakh and Crore)
₹1,25,000 in words is "One Lakh Twenty-Five Thousand Only". How to write amounts on Indian cheques, lakh vs million, paise, and mistakes to avoid.
7 min read
Text & Writing
Roman Numerals: The Rules, a Chart and How to Convert Any Number
I=1, V=5, X=10, L=50, C=100, D=500, M=1000. How subtraction works (IV, IX, XL), why 3999 is the limit, and a chart of common numbers and years like 2026.
6 min read
Data & Developers
Unix Timestamp Converter: Epoch Time Explained
Convert Unix timestamps to human dates and back free online — what epoch time is, why developers use it, and the year-2038 problem.
2 min read
Data & Developers
What Is My IP Address? IP Lookup Explained
Check and understand an IP address free online — public vs private, IPv4 vs IPv6, and what your IP does (and doesn't) reveal about you.
1 min read
Data & Developers
Credit Card Validator: How the Luhn Check Works
Check if a card number is validly formatted with the Luhn algorithm free online — how the checksum works and what it does (and doesn't) prove.
2 min read
SEO & Marketing
Slug Generator: How to Create SEO-Friendly URLs
Create clean, SEO-friendly URL slugs free online — why good URLs matter for ranking and clicks, and the rules for writing them.
2 min read
PDF & Documents
How to Convert PDF to JPG Free (Every Page, No Upload)
Turn each PDF page into a JPG or PNG image in your browser: the resolution you get, keeping text sharp, JPG vs PNG, and fixes for common problems.
7 min read
Data & Developers
How to Convert Excel to CSV (Save As, Multiple Sheets, Free Tool)
Save Excel as CSV with File › Save As › CSV UTF-8, convert each sheet separately, or use a free browser tool. What each option keeps, changes and loses.
7 min read
PDF & Documents
How to Extract Text from a PDF (Text PDFs, Scans and Tables)
Copy all the text out of a PDF free in your browser. How text PDFs differ from scans, what happens to tables and layout, OCR options and protected PDFs.
8 min read
Data & Developers
How to Convert CSV to Excel Without Losing Zeros or Hindi Text
Convert CSV to Excel with a free browser tool, Excel's From Text/CSV import or Google Sheets, and keep leading zeros, long numbers, dates and Hindi text intact.
9 min read