Madao's ToolkitBeta
21 Client-side Utilities for Everyday Work
🖼️ Image & Media
Advanced Image Converter
Batch resize, smart crop, compress to target size (KB), and convert multiple images locally. Supports D&D sorting. Download as ZIP or PDF.
Photo Collage Maker
Combine up to 4 images to create beautiful collages with flexible layouts. Customize gaps and background colors, intuitively adjust images, and export in high resolution up to 2000px.
Image Privacy & Watermark
Strip EXIF metadata, add blur to sensitive areas, and apply watermarks.
WebP to GIF Converter
Convert WebP images to GIF format directly in your browser. Fast, secure, and private.
Browser Image Viewer
Secure, local, browser-based image viewer supporting folders and filters.
Browser Video Player
A browser-based video player. Play videos securely without server uploads, featuring A-B loop and PiP support.
📂 File & Document
Duplicate & Similar Image Finder
Detect exact duplicates or resized/similar images entirely in your browser using AHash/DHash algorithms. Compare, select, and download results safely.
Browser PDF Viewer
View PDF files securely in your browser
Advanced PDF Utility
A secure, browser-based PDF toolset. Merge, extract, split, rotate, add watermarks, edit metadata, convert images to PDF, and add page numbers locally.
Secure Archive Extractor & Compressor
Fast, browser-based ZIP compression and extraction with password protection (ZipCrypto / AES-256). All files are processed locally without server uploads.
Bulk File Renamer
Batch rename files and download as ZIP.
💻 Text & Developer
Text Analyzer
Count characters and words in real-time.
Text Diff Checker
Compare two texts and highlight the differences (additions and deletions).
JWT Debugger
Securely decode, verify, and edit JWTs locally in your browser.
Steganography Tool
Hide or reveal secret text inside image pixels (LSB) completely offline using Canvas API.
🛠️ Utilities & Generators
Password Generator & Checker
Generate secure passwords and evaluate their strength in real-time.
QR Code Generator
Generate high-quality QR codes instantly in your browser. Private and secure.
Clothing Size Converter
Instantly compare international clothing sizes based on general guidelines.
Scenario Calculator
An advanced calculator supporting natural language, multi-unit mixing, scenario tree branching, and tactile/audio feedback.
World Clock & Meeting Planner
Advanced tool for scheduling across multiple locations and checking local information.
Expense & Subscription Tracker
Track your monthly expenses and subscriptions safely inside your browser.