# Ultitools — Private Client-Side Browser Utilities
> Free, private, and zero-upload developer, image, document, media, and calculator utilities engineered with a Quality First standard by Aug27 Studio. All processing executes 100% locally within the browser memory sandbox via WebAssembly (Wasm) and HTML5 Canvas.

## Overview
- **Name:** Ultitools
- **Website:** https://ultitools.app
- **Developer / Creator:** Aug27 Studio (© 2026 Aug27 Studio)
- **Application Goal:** Quality First & 100% Privacy by Design
- **Architecture:** Zero Server Uploads. Client-Side WebAssembly (FFmpeg Wasm, Prettier AST, Tesseract.js, jsPDF, OpenXML DOM)
- **Total Tools:** 49 Active In-Browser Utilities

## Key Capabilities & Quality Standards
- **Image High-Scaling & Super Resolution:** 1x, 2x Super Resolution (2K), and 4x Ultra HD Super Resolution (4K) executing progressive 2-stage canvas scaling with adaptive Laplacian edge recovery convolution and 8,000px GPU memory safety guards.
- **Video Upscaling & Transcoding:** 480p to 4K Ultra HD using FFmpeg WebAssembly with Lanczos-3 Sinc filters, resolution-adaptive CRF rate control (CRF 18 visually lossless master for 4K), 256kbps AAC audio, and MP4 `+faststart` instant streaming atoms.
- **Office Document to PDF:** Microsoft Word (.docx, .doc) and PowerPoint (.pptx, .ppt) converted locally into clean vector PDFs without sending proprietary company files to external servers.
- **Financial & Everyday Calculators:** Income and sales tax for 6 nations, loan/mortgage EMI with amortization schedule and extra payment analysis, compound interest SIP wealth planner, multi-currency live/offline matrix, and timezone meeting planner.
- **Code Studio & Developer Tools:** In-browser Prettier AST formatting, syntax error diagnosis, and minification for JSON, JavaScript, TypeScript, HTML, CSS, SQL, and Markdown.
- **Cryptographic & Token Tools:** JWT debugger with signature verification, cron expression generator with natural translations, SHA-256, SHA-512, MD5, CRC-32 file hashing with instant verification via browser WebCrypto APIs.

## Full Tool Catalog (49 Tools)

### Developer, Text & Calculator Tools (28 Tools)
- [Code Formatter & Validator Studio](https://ultitools.app/tools/code-formatter-validator/): All-in-one dual-pane code beautifier, minifier, and syntax validator.
- [Delimiter & List Separator](https://ultitools.app/tools/delimiter-converter/): Convert text lists between commas, spaces, newlines, tabs, and dynamic custom separators with quoting and deduplication.
- [Currency Converter](https://ultitools.app/tools/currency-converter/): Convert between 32+ global currencies with real-time API updates, offline cached baseline rates, and comparison matrix.
- [Timezone Converter & Meeting Planner](https://ultitools.app/tools/timezone-converter/): Compare dates and times across world timezones with daylight saving, interactive timeline, and copyable meeting schedules.
- [Income & Sales Tax Calculator](https://ultitools.app/tools/tax-calculator/): Calculate salary net pay, social insurance, brackets, and sales tax / VAT / GST for US, UK, Canada, Australia, Germany, and India.
- [Loan & Mortgage Interest Calculator](https://ultitools.app/tools/loan-calculator/): Calculate monthly loan EMI payments, total interest, payoff dates, extra payment savings, and full amortization schedules.
- [Universal Unit Converter](https://ultitools.app/tools/unit-converter/): Convert between physical and digital units: length, mass, digital storage, temperature, volume, area, speed, and time.
- [Compound Interest & SIP Wealth Calculator](https://ultitools.app/tools/investment-calculator/): Calculate investment growth, regular monthly SIP contributions, inflation adjustments, and year-by-year amortization schedules.
- [Date Difference, Age & Business Days](https://ultitools.app/tools/date-calculator/): Calculate exact calendar & business days between dates, add/subtract time intervals, and calculate exact age down to hours.
- [JWT Debugger & Inspector](https://ultitools.app/tools/jwt-debugger/): Decode and inspect JSON Web Tokens locally: view header, payload, expiration countdown, and verify HMAC SHA-256 signatures.
- [Cron Expression Generator & Explainer](https://ultitools.app/tools/cron-generator/): Build and explain standard 5-part cron schedules in plain natural language with upcoming execution forecasts.
- [SQL Formatter & Minifier](https://ultitools.app/tools/sql-formatter/): Beautify, auto-indent, uppercase keywords, and minify complex SQL queries for PostgreSQL, MySQL, SQLite, and BigQuery.
- [JSON Formatter / Validator](https://ultitools.app/tools/json-formatter/): Format, beautify, and validate JSON syntax with line/col error highlights.
- [Code Formatter / Prettifier](https://ultitools.app/tools/code-formatter/): Format code and text snippets via Prettier.
- [HTML Formatter](https://ultitools.app/tools/html-formatter/): Format HTML markup for readability and clean DOM structure.
- [CSS Formatter](https://ultitools.app/tools/css-formatter/): Beautify and indent CSS/SCSS stylesheets.
- [JavaScript Formatter](https://ultitools.app/tools/javascript-formatter/): Format JavaScript and ECMAScript source files.
- [Base64 Encoder / Decoder](https://ultitools.app/tools/base64-encoder-decoder/): Lossless UTF-8 text and binary Base64 encoding.
- [URL Encoder / Decoder](https://ultitools.app/tools/url-encoder-decoder/): Safely encode and decode URI components.
- [UUID Generator](https://ultitools.app/tools/uuid-generator/): Cryptographically secure RFC-4122 version 4 UUIDs.
- [Password Generator](https://ultitools.app/tools/password-generator/): High-entropy random passwords generated locally.
- [Hash Generator & Verifier](https://ultitools.app/tools/hash-generator-verifier/): Compute and verify SHA-256, SHA-512, MD5, SHA-1, CRC-32 digests.
- [Markdown Previewer](https://ultitools.app/tools/markdown-previewer/): Safe in-browser sanitized Markdown rendering.
- [Regex Tester](https://ultitools.app/tools/regex-tester/): Test regular expressions in a sandboxed Web Worker.
- [Text Diff Checker](https://ultitools.app/tools/text-diff-checker/): Line-by-line and character diff comparison.
- [Word & Character Counter](https://ultitools.app/tools/word-character-counter/): Detailed word, character, sentence, and reading-time metrics.
- [Case Converter](https://ultitools.app/tools/case-converter/): Convert text between camelCase, snake_case, kebab-case, PascalCase, and UPPERCASE.
- [Timestamp Converter](https://ultitools.app/tools/timestamp-converter/): Convert Unix epoch timestamps to human-readable ISO-8601 dates.

### Images & Design Tools (16 Tools)
- [AI Image Enhancer & 4K Upscaler](https://ultitools.app/tools/image-enhancer/): 2x/4x Super Resolution, auto-enhancement, background removal, split preview.
- [Word to PDF Converter](https://ultitools.app/tools/word-to-pdf/): Convert .docx and .doc documents to high-resolution vector PDFs.
- [PowerPoint to PDF Converter](https://ultitools.app/tools/powerpoint-to-pdf/): Convert .pptx presentations to 16:9 landscape presentation PDFs.
- [PDF to Word Converter](https://ultitools.app/tools/pdf-to-word/): Extract text and structure from PDFs into editable .docx documents.
- [PDF Compressor & Optimizer](https://ultitools.app/tools/pdf-compressor/): Compress and optimize PDF file sizes locally with DPI presets.
- [PDF Converter & Generator](https://ultitools.app/tools/pdf-converter/): Convert images, text notes, and HTML to PDF documents.
- [OCR Image & Scan to Text](https://ultitools.app/tools/ocr-image-to-text/): Client-side neural optical character recognition with Tesseract Wasm.
- [Zip Archive Manager](https://ultitools.app/tools/zip-archive-manager/): Create and extract ZIP archives with custom Deflate compression.
- [Webpage & HTML Screenshot](https://ultitools.app/tools/capture-website-screenshot/): Render HTML and webpages into high-res PNG, JPEG, TIFF, or PDF.
- [QR Code Generator](https://ultitools.app/tools/qr-code-generator/): Generate downloadable vector and high-res PNG QR codes.
- [Image Compressor](https://ultitools.app/tools/image-compressor/): Reduce PNG, JPEG, and WebP image sizes with real-time quality previews.
- [Image Resizer](https://ultitools.app/tools/image-resizer/): High-precision proportional image resizing.
- [Image Cropper](https://ultitools.app/tools/image-cropper/): Crop images to exact aspect ratios and pixel dimensions.
- [Image Format Converter](https://ultitools.app/tools/image-format-converter/): Convert between PNG, JPEG, WebP, and AVIF.
- [SVG Optimizer](https://ultitools.app/tools/svg-optimizer/): Clean and minify SVG markup and strip dangerous scripts.
- [Color Picker & Converter](https://ultitools.app/tools/color-picker-converter/): Interactive palette picker with HEX, RGB, HSL, and CMYK translation.

### Video & Audio Tools (5 Tools)
- [4K Video Scaler & Converter](https://ultitools.app/tools/video-format-converter/): Transcode and upscale videos up to 4K Ultra HD via FFmpeg Wasm Lanczos-3.
- [Device & Social Media Video Converter](https://ultitools.app/tools/device-video-converter/): Calibrated presets for Instagram Reels (9:16), TikTok, YouTube 4K, and Discord (<10MB).
- [Video Compressor](https://ultitools.app/tools/video-compressor/): Reduce video file sizes with adjustable CRF and bitrate controls.
- [Audio Transcoder](https://ultitools.app/tools/audio-converter/): Convert and extract audio tracks to MP3, WAV, AAC, FLAC, and OGG.
- [Video Downloader & Stream Inspector](https://ultitools.app/tools/video-downloader/): Inspect direct video stream URLs and download media securely.

## Privacy & Security Verification
- Zero data is transmitted to external servers.
- Verified in `test-quality.ps1` with 0 bytes network payload.
- All intellectual property and trademarks reserved by Aug27 Studio.