All Browser-Based Online Tools
Access our complete index of 109 secure utilities. Everything runs locally in your browser sandbox. No files, passwords, or data are ever uploaded to a server.
Directory Statistics
Search and Filter Tools
Tools Directory
Text Tools
JSON Formatter
Beautify, parse, minify, and format JSON strings with collapsable trees.
Word Counter
Count words, characters, sentences, and paragraphs in real-time.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, sentence case, and more.
Character Counter
Instantly count characters and spaces in your text, with or without spaces.
JS Minifier
Minify JavaScript files by stripping comments, spaces, and optimising code.
Remove Empty Lines
Instantly remove all empty, blank, or whitespace-only lines from text.
SQL Formatter
Prettify complex SQL queries into readable layouts with syntax indentation.
Developer Tools
QR Code Generator
Generate custom QR codes for URLs, WiFi, texts, contact cards, and download.
JWT Decoder
Decode JSON Web Tokens (JWT) payload, header, and signature instantly.
Password Generator
Generate highly secure, random passwords with custom complexity rules.
Diff Checker
Compare two text contents side-by-side and highlight additions/deletions.
Cron Generator
Build cron schedule expressions visually with human-readable explanations.
Hash Generator
Calculate cryptographic hashes: MD5, SHA-1, SHA-256, SHA-512 from string.
Lorem Ipsum Generator
Generate placeholder lorem ipsum paragraphs, words, list items, or sentences.
Calculators
Age Calculator
Calculate your exact age in years, months, weeks, and days based on birth date.
BMI Calculator
Calculate Body Mass Index (BMI) and check classification based on height/weight.
Compound Interest Calculator
Simulate savings growth over time with customizable compounding intervals.
Date Difference
Find the precise duration of days, weeks, and months between two dates.
Discount Calculator
Calculate net price savings after original discount rates and additional tax.
GST Calculator
Add or remove Goods and Services Tax (GST) from total transaction amounts.
Loan Calculator
Calculate monthly EMI repayments, interest rates, and loan payment schedules.
Percentage Calculator
Solve various percentage calculations, increases, discounts, margins, and conversions easily in real-time.
Image Tools
Image Compressor
Compress JPG, PNG, and WebP images to reduce file sizes without quality loss.
Base64 to Image
Decode Base64 Data URI strings back to previewable, downloadable image files.
Color Extractor
Analyze uploaded images and extract their dominant colors and palettes.
Favicon Generator
Generate multi-size favicons (.ico, 16x16, 32x32, apple-touch-icon) from raw images.
Image to Base64
Convert image files into Base64 encoded Data URI strings for HTML/CSS embedding.
PNG to JPG Converter
Convert PNG transparent images to standard solid JPG files easily.
PDF Tools
SEO Tools
Schema Markup Generator
Build JSON-LD structured data schemas for articles, local businesses, FAQs, and products.
Keyword Density Checker
Analyze texts or copy to check keyword frequencies and optimization scores.
Meta Tag Generator
Create HTML meta tags for SEO titles, descriptions, open graph details, and twitter cards.
Robots.txt Generator
Generate compliant robots.txt files to manage search engine indexing rules.
Student Tools
Color Tools
Color Picker
An advanced interactive color picker, color palette generator, and converter supporting HEX, RGB, HSL, HSV, and CMYK formats.
Palette Generator
Generate color palettes: monochromatic, analogous, triadic, and complementary.
Color Contrast Checker
Check WCAG 2.2 contrast ratios for normal and large text. Simulate color blindness perception.
Color Mixer
Mix two colors together with custom ratios. Generate mixed steps and inspect intermediate shades.
Color Palette Generator
Generate harmonized color palettes from a base color, save to LocalStorage, and export developer tokens.
Color Wheel
An interactive color wheel to explore complementary, analogous, and triadic color relationships visually.
Contrast Checker
Check WCAG 2.1 accessibility contrast ratios for foreground and background colors.
CSS Gradient Generator
Design linear, radial, and conic CSS gradients visually with color stops.
CSS Gradient Generator
Create linear, radial, or conic gradients. Drag stops, adjust angles, and copy CSS background variables.
Glassmorphism CSS Generator
Design premium glass effects with custom blurs, opacities, and border styles.
HEX to RGB Converter
Convert HEX color codes to RGB or RGBA format in real-time. Simply paste your HEX code to decode.
HSL to RGB Converter
Convert HSL (Hue, Saturation, Lightness) color values to RGB format in real-time.
Image Color Picker
Extract color codes from any image. Upload files to pick color values with a magnifier dropper.
CSS Tools
Finance Tools
Income Tax Calculator
Estimate net income and income tax liabilities using bracket rates.
Inflation Calculator
Determine changing purchasing powers and historical inflation values of money.
Health Tools
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) using Mifflin-St Jeor formulas.
Body Fat Calculator
Estimate body fat percentage using US Navy circumference measurements.
Miscellaneous
Party Countdown
Create fully customizable countdowns for birthdays, weddings, New Years, and parties with custom styles, particle effects, procedural music, and shareable links.
Random Number Generator
Generate random numbers within custom ranges with options for duplicates.
What is my Browser Info
Read your browser name, version, user agent details, and language features.
Privacy First: No Data Leaves Your Device
Rizver Tools is engineered to run completely client-side in your local browser sandbox. When you paste texts, upload documents, drop files, compress pictures, or format configurations, your information remains on your local machine. No external servers or API handlers process your keys, guaranteeing zero leak vectors.