ZeroWebTools Companion
A secure browser extension designed to extend the web platform's capabilities. Unlocks offline developer utilities and bridges browser permissions for advanced online tools.
Add to Chrome
Add to FirefoxOffline Utility Toolbar
Access critical utility editors directly in your browser's menu bar at any time—no internet connection required. Runs in a fully private local sandbox.
- JSON Formatter — Tree node walker and minifier
- Text Diff Checker — Line-by-line comparative visual diff
- JWT Debugger — Claims inspector and header decoder
- Case Converter — Instantly switch camel, snake, and PascalCase
- Base64 Cipher & URL Encoder — Percent-encoding and hashing ciphers
Platform API Bridge
Unlock advanced tools on zerowebtools.com that require elevated browser scopes or CORS permissions. The extension safely executes them on your behalf.
- Secure CORS Bypasses — API Client queries work directly from your local browser
- Local HTML Web Scraping — Extract webpage nodes client-side inside the Smart Reader
- Direct DOM Access — No proxy servers or intermediate logging databases needed
- Zero Trust Pipeline — Zero keys, tokens, or scraped data ever leaves your device
How The Companion Integrates
Install the Extension
Download from the Chrome Web Store. It sits silently in your extension toolbar waiting for command triggers.
Bridge Detection
When you visit toolpages like the REST API Client, the page detects the companion secure bridge automatically.
Execute Locally
Queries and scrapes run directly from your browser engine, bypassing CORS limits without third-party servers.
100% Open & Auditable
The ZeroWebTools Companion contains **zero tracking pixels, diagnostic pings, or analytics databases**. It acts solely as an offline processing container and a local proxy bridge on your hardware.