MasoomDev
FREE BROWSER UTILITIES

HTML Tools

Choose a tool below. Each opens in its own browser tab, keeping your tools directory easy to browse.

⚡10 Quick Tools - NewJSON, text case, slug, timestamps, contrast, text diff, CSV, lorem ipsum, line sorter and SHA-256.Open quick toolsPDF & File ToolsMerge PDFs, split pages, convert JPG to PDF and create ZIP archives.Explore PDF & File Tools ↗Developer Tools5 utilities: URL encoder, Base64, Regex tester, Markdown editor and code minifier.Explore Developer Tools ↗Image Tools9 image tools: compress, resize, crop, watermark, favicon, rotate, Base64, color picker and bulk converter.Explore Image Tools ↗Advanced NotepadEdit, upload, copy and save TXT files. Offline-ready.Open tool ↗Live HTML EditorWrite HTML code and see the live preview side by side. Offline-ready.Open tool ↗Standard CalculatorBasic arithmetic with an easy keypad.Open tool ↗eBay UK Profit CalculatorEstimate selling costs, fees and profit.Open tool ↗Percentage CalculatorQuick percentage increases and decreases.Open tool ↗Word CounterCount words, characters and lines.Open tool ↗Password GeneratorCreate strong random passwords.Open tool ↗JSON FormatterFormat, minify and validate JSON.Open tool ↗Text Case ConverterChange text to upper, lower and title case.Open tool ↗🎂Age CalculatorCalculate exact age and days until your next birthday.Open free tool ↗📏Unit ConverterConvert metres, miles, kilograms, pounds and temperatures.Open free tool ↗💳Loan EMI CalculatorEstimate monthly loan payments and total interest.Open free tool ↗📝Remove Duplicate LinesClean lists and remove repeated text instantly.Open free tool ↗

Calculator

eBay UK Profit

Adjust fee rates to match your seller account.

Fee estimate only. UK eBay fees vary by account, category and promotions; taxes excluded.

Bulk Image Converter

Convert multiple images locally, preserving aspect ratio. JPG, PNG and WebP supported.

Image size is displayed after conversion; exact output file size is not guaranteed.

Percentage Calculator

Word Counter

Words: 0 | Characters: 0

Password Generator

Click Generate

JSON Formatter & Validator

Paste JSON to validate, format or minify it. Processing stays in your browser.

Ready

Text Case Converter

Convert text into uppercase, lowercase, title case or sentence case.

Ready