3S3 SmartToolbox

🖼️ Image Compression Compress JPG, PNG, and WebP images online, resize them, convert formats, and download optimized files or a ZIP package. ⏰ World Clock Check current time across multiple cities and time zones with a live online world clock. ♻️ Unit Converter Convert length, weight, temperature, volume, area, and speed units instantly with an online unit converter. 🧮 Scientific Calculator Use a free online scientific and programmer calculator for math functions, history, base conversion, and bitwise operations. 🎨 HEX Color Picker Pick colors online and inspect HEX, RGB, HSL, alpha, contrast, and palette values for web design. 🔳 QR Code Generator Generate QR codes online for URLs, text, Wi-Fi networks, and vCards, then download SVG or PNG. 🧾 JSON Formatter Format, validate, minify, sort, inspect, and query JSON online with a fast browser-based JSON formatter. 🔐 Base64 Encode & Decode Encode and decode Base64 text or files online with Unicode-safe and URL-safe Base64 options. 🔗 URL Encode & Decode Encode, decode, analyze, and rebuild URLs, query strings, percent-encoded text, and special characters. 🕓 Timestamp Converter Convert Unix timestamps to readable dates, convert dates back to epoch time, and batch-convert log timestamps. 🔑 Password Generator Generate strong random passwords or passphrases with length, character set, ambiguity, and entropy controls. 📝 Word Counter Count words, characters, lines, paragraphs, reading time, CJK characters, and keyword frequency online. ✓ Text Proofreader Proofread and polish English text with AI, then produce a copy-ready revised version with notes. ¶ Document Layout Optimizer Turn messy long text into a clear Markdown document with headings, sections, paragraphs, and readable structure. CV Resume Optimizer Improve resume and CV wording for a target role while keeping achievements truthful and recruiter-friendly. ≡ Article Summarizer Summarize long articles into concise summaries, outlines, key points, notes, and action items. ! Contract Risk Checker Review redacted contract clauses with AI and extract risk notes, review questions, and human-check lists. MD Markdown Cleaner Clean and organize Markdown headings, lists, spacing, code blocks, README files, and documentation drafts. {} JSON Cleaner Repair broken JSON, remove comments and trailing commas, normalize data, and output valid parseable JSON. 🏷️ Slug Generator Generate clean SEO-friendly URL slugs from titles, phrases, and batch text with custom separators. 🆔 UUID Generator Generate UUID v4 and UUID v7 values online for development, APIs, tests, databases, and logs. 📅 Date Difference Calculator Calculate the exact difference between two dates and times in days, hours, minutes, weeks, and workdays. 🔣 Hash Generator Generate MD5, SHA-1, SHA-256, SHA-512, HMAC-SHA-256, and file checksums locally in your browser. 🎟️ JWT Decoder Decode JWT tokens locally, inspect header and payload JSON, review claims, and verify HS256 signatures. 🧪 Regex Tester Test regular expressions online with flags, matches, groups, replacement preview, and AI-assisted pattern setup. 🔠 Case Converter Convert text to uppercase, lowercase, title case, sentence case, camel case, snake case, kebab case, and more. 🧹 Line Deduplicator Remove duplicate lines from text online, trim lines, ignore case, remove blanks, or deduplicate by column. ↕️ Line Sorter Sort lines of text alphabetically, naturally, numerically, by length, randomly, ascending, or descending. 📄 Markdown Preview Write Markdown and preview rendered HTML side by side with table of contents, stats, copy, and export tools. 📷 QR Code Scanner Scan QR codes from uploaded images in your browser and copy decoded text, links, or contact data. 🎂 Age Calculator Calculate exact age from a birth date in years, months, days, total days, weeks, and next birthday countdown. 📊 Percentage Calculator Calculate percentages, percent of a number, percentage change, discounts, tax markup, and profit margin. 📘 Word / PDF Converter Convert DOCX to PDF or PDF to DOCX online with a text-first workflow for readable document exports.