100% Private, Client-Side Tools

Compound Interest Calculator

Calculate compound interest, forecast investment growth curves, and export CSV amortization schedules in browser.

Loan & Mortgage Amortization Calculator

Compute monthly mortgage payments, total interest breakdown, and detailed amortization schedules.

Multi-Scenario Percentage Calculator

Solve percentage increase/decrease, ratios, proportions, and percentage differences in real time.

Batch Image Converter (WebP, PNG, JPG)

Convert image formats in bulk with off-main-thread Web Workers and ZIP download. 100% private in-browser.

Smart Client-Side Image Compressor

Reduce image file size with visual split-viewer quality comparison without server uploads.

SVG to High-Res PNG & Multi-Size ICO Generator

Rasterize SVG vectors into high-resolution PNGs and standards-compliant multi-layer .ico favicons.

SVG Wave & Shape Divider Generator

Generate customizable, organic SVG wave dividers with real-time 60fps preview and multi-format export.

CSS Glassmorphism & Multi-Layer Shadow Generator

Design modern frosted glass UI effects, multi-layered box-shadows, and export production-ready CSS.

Mesh Gradient & Fluid Wallpaper Generator

Create smooth mesh gradients with draggable control points, seeded mutations, and 4K PNG exports.

WCAG 2.2 Color Contrast Checker & Remediation

Check color contrast ratios against WCAG 2.2 standards with smart passing suggestions for AA/AAA.

Smart Image Palette Extractor

Extract dominant color palettes from images via local Canvas clustering with HEX, RGB, HSL exports.

Client-Side PDF Merger

Merge multiple PDF documents into a single consolidated file in your browser with zero server uploads.

Client-Side PDF Splitter & Page Extractor

Extract selected pages or split PDF documents into separate files with visual thumbnails.

Multilingual Word & Character Counter

Count words, characters, sentences, paragraphs, and estimate reading time with CJK Unicode support.

Case & Code Identifier Converter

Convert text between UPPERCASE, lowercase, Title Case, camelCase, kebab-case, snake_case, and PascalCase.

Custom QR Code Generator with Logo & Colors

Create custom QR codes with embedded center logos, gradient colors, dot styles, and vector SVG exports.

Strict JSON Formatter, Minifier & Validator

Format, validate, and minify JSON with accurate line/column error diagnosis and collapsible tree view.

UTF-8 Base64 & URL Encoder / Decoder

Safely encode and decode UTF-8 strings, URL components, and convert images into Base64 Data URIs.

Cryptographically Secure Random Password Generator

Generate high-entropy passwords locally with window.crypto.getRandomValues and custom policy rules.

High-precision client-side financial calculators, loan amortization, and compound interest models.

Fast, private client-side image format conversion, compression, and rasterization.

Interactive visual design tools, SVG waves, dividers, and modern CSS generators.

WCAG contrast analyzers and intelligent color palette extraction tools.

Zero-server, 100% private in-browser PDF merging, splitting, and extraction.

Essential text analysis, casing conversion, and styled QR code generators.

Strict JSON formatting, Base64 encoding, and cryptographic password generators.