Offline Tools Websites
Free Developer Tools - Privacy-First Online Utilities | StackToolkit
Free, privacy-first developer tools. Format JSON, generate UUIDs, create hashes, encode URLs, and more. All tools run in your browser - no data leaves your device.
Not Applicable
$
8.94
SwissToolbox.app - Useful tools for every day
Professional privacy-first utility tools for PowerPoint analysis, NATO phonetic conversion, and email deduplication. All processing happens locally in your browser - no data uploaded to servers.
Not Applicable
$
8.94
CalcuHub - Your Everyday Toolkit
A hub of hundreds of free, offline-ready calculators and tools across more than 20 categories, designed for students, professionals, and everyday life.
Not Applicable
$
8.94
Scratch Tabs: The Private, Offline-First Developer Toolkit for JSON, R
Scratch Tabs: The ultimate client-side toolkit for JSON editing, API testing, data conversion, and developer utilities. Free, private, no tracking, no accounts required. Works offline.
Not Applicable
$
8.94
Utility Tools - Privacy-Focused Offline Utility Collection
Free offline utility tools including temperature converter, Base64 encoder/decoder. Privacy-focused, no data stored, works without internet.
Not Applicable
$
8.94
Dev Tools - Your Ultimate Developer Toolkit | Free Online Tools
Free online developer tools including JSON viewer, Base64 converter, UUID generator, JWT decoder, and more. All tools work offline for privacy and speed. No registration required.
Not Applicable
$
8.94
whaaat.site: 20+ Free & Secure File Tools (No Uploads)
Process files securely with 20+ free tools. Remove EXIF data, manage PDFs, convert images & more. 100% private—your files are never uploaded.
Not Applicable
$
8.94
实用工具集 - 健身打卡表
Free online tools that work 100% offline. Fitness tracker, Pomodoro timer, habit tracker, password generator. All data stored locally, no server uploads, complete privacy protection.
Not Applicable
$
8.94
