Percentage Calculator
Quickly calculate increases, decreases, differences, and standard percentages.
Compound Interest
Simulate investment growth, deposits, and compound frequencies over time.
Loan & Amortization
Calculate monthly installments, interest breakdown, and repayment schedules.
Discount & Sales Tax
Find final price savings, discount margins, and applicable sales taxes.
GPA & Grade Calculator
Compute cumulative semester GPA and weighted scale grades instantly.
CSV to JSON / JSON to CSV
Convert data structures back and forth with custom delimiter support.
PDF Merge
Combine multiple PDF documents entirely in your browser securely.
PDF Split & Extract
Extract selected page ranges or separate individual pages locally.
Base64 File Encoder
Encode documents and binary assets into data URIs and raw Base64 strings.
Color Palette Extractor
Extract primary and complementary hex palette codes from any uploaded image.
SVG to PNG Converter
Rasterize SVG vector illustrations to transparent, high-res PNG formats.
Image Resizer & Crop
Adjust image pixel dimensions, preserve aspect ratios, and optimize weights.
Image to Base64
Convert PNG, JPG, or SVG to embeddable HTML/CSS inline data sources.
WEBP Converter
Transform WEBP files to standard PNG and JPG formats on the fly.
Multi-Size Favicon Builder
Generate standard 16x16, 32x32, and apple-touch icons from an icon asset.
Date Difference & Workdays
Calculate total days, business working days, and weekends between dates.
QR Code Generator
Create custom vector QR codes for URLs, WiFi credentials, and contact cards.
Age & Milestone Calculator
Compute exact age in years, months, and hours with countdown milestones.
Password Generator & Entropy
Generate cryptographically secure passwords with entropy strength scoring.
Time Zone Meeting Planner
Compare overlapping business hours across major global timezones.
Word & Character Counter
Track real-time character counts, words, reading durations, and paragraph stats.
Markdown Previewer
Write Markdown with side-by-side formatted preview and instant HTML export.
URL Slug Generator
Sanitize titles into clean, SEO-optimized URL slugs removing stop words.