Simple, Private & Powerful Utility Tools
Fast in-browser utilities built with modern web technologies. No subscription traps, no bloated popups, and your data never leaves your device.
Case Converter & Word Counter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, slugify, and analyze live word count & reading time.
Vector QR Code Generator
Generate high-resolution SVG & PNG QR codes for WiFi, vCard, URLs, and text with custom colors and zero paywalls.
JSON Formatter & Schema Diff
Format, validate, repair, and diff JSON with Monaco editor. Export to TypeScript interfaces and Go structs.
Loan EMI & Amortization Calculator
Calculate monthly loan EMIs, interest breakdown, prepayment savings, and export complete amortization schedule.
Age & Date Difference Calculator
Calculate exact age in years, months, and days, count down to your next birthday, and measure the precise duration between any two dates.
Percentage Calculator
Calculate X% of Y, what percent X is of Y, percentage increase/decrease, and discount prices with savings — formulas included.
In-Browser Invoice & Receipt Maker
Generate and download clean, professional PDF invoices directly in your browser without sign-up or data tracking.
Interactive Regex Tester & Explainer
Test regular expressions with real-time match highlighting, cheat sheet presets, and plain-English pattern explanations.
Base64 & URL Encoder/Decoder
Encode and decode Base64 (standard & URL-safe) and URL percent-encoding with full Unicode support — instantly, with zero uploads.
SHA Hash Generator & UUID Creator
Generate SHA-1/256/384/512 digests from any text and mint bulk UUID v4 identifiers using your browser's Web Crypto API.
Privacy Image Compressor & WebP
Compress and convert PNG, JPG, and WebP images locally using WebAssembly. Your photos never leave your device.
Color Picker & Palette Extractor
Pick colors for instant HEX/RGB/HSL codes with shade scales, or extract a dominant color palette from any image — 100% locally.
Zero-Upload PDF Suite
Merge, split, compress (reduce size), and convert pictures (JPG/PNG) to PDF 100% locally in your browser with zero server uploads.
World Timezone Overlap Planner
Interactive 24-hour visual slider to compare overlapping working hours across global cities and schedule meetings.
Markdown Live Editor & Exporter
Split-screen markdown editor with live synchronized preview, GFM tables, KaTeX math formulas, and one-click PDF/HTML export.
Why Users Choose KitWharf
Legacy utility websites are full of aggressive popup ads, registration paywalls, and slow server uploads. We engineered a cleaner alternative.
100% In-Browser Privacy
Your text, PDFs, photos, and financial data are processed directly inside your browser using WebAssembly and client JavaScript. Your files never touch our servers.
Sub-Millisecond Speed
By eliminating network roundtrips to remote cloud APIs, every transformation, case conversion, and calculation happens with zero latency.
No Deceptive Paywalls
All utilities are completely free for public use. No surprise "2 free files then $12/month" subscriptions or forced email captures.