Dev Passa

Developer tools for screenshots, annotations, JSON visualization, Parquet viewing, and PDF utilities

Dev Passa is a lightweight, all-in-one Chrome extension built to help developers, testers, support engineers, and technical users work faster inside the browser. Instead of switching between multiple websites and tools, Dev Passa brings common day-to-day utilities into one convenient place. You can capture screenshots, annotate images, inspect and compare structured data, decode tokens, convert timestamps, work with cron expressions, and use encoding and crypto helpers—all without leaving Chrome. 🔥 KEY FEATURES • Screenshot Capture & Annotation: Select an area and add drawings, highlights, and text. • JSON Visualization & Handler: Format JSON effortlessly and open .json files directly in your browser. • Text Compare: Side-by-side diff tool with highlighted changes for JSON, XML, YAML, Properties, and plain text. • Parquet Viewer: Drag-and-drop or load via URL to inspect schemas, browse/filter rows, and export to JSON/CSV. • PDF Utility: View, merge, split, convert to images (PNG/JPEG/WebP), add text overlays, print, and download. • JWT Decoder: Quickly decode and inspect JSON Web Tokens. • Encoding & Crypto Utility: AES, RSA, ECDSA, hashing support, plus Base64 and URL encoding/decoding. • Timestamp Converter: Smart format detection with seamless timezone conversion. • Cron Utility: Validation, schedule preview, and generator support (including Spring Boot cron expressions). 💡 WHY DEV PASSA? • Eliminates the need to bookmark and bounce between dozens of different web utilities. • Accelerates debugging, API inspection, payload comparison, formatting, and time conversion. • Built for privacy: PDF, Parquet, and JSON files are processed 100% locally in your browser memory. No file data is ever uploaded or persisted to any external server. 🎯 WHO IT IS FOR • Software Developers • QA Engineers • Support Teams • API Integrators • Technical Analysts 🚀 LATEST UPDATES Version 2.2.0: • Added a comprehensive PDF Utility (view, merge, split, convert to images, annotate). • Registered Dev Passa as a default file handler for .json files. • Vendored local libraries for faster, secure, offline-capable processing. Version 2.1.0: • Introduced Parquet Viewer (schema view, pagination, search/filter, cell-copy, export to JSON/CSV). Version 2.0.0: • Major update expanding the extension into a complete developer toolkit. • Added Text Compare (Diff tool). • Improved Timestamp Converter and expanded Encoding/Crypto capabilities. • Added Spring Boot cron expression support. Developer: Yubraj Pokharel