Visualize view and projection matrices from the comfort of your browser

A sleek, lightweight browser tool to format and visualize FHIR JSON responses. Paste raw data, click “Format JSON,” and instantly view a clean, color-coded, easy-to-read output. Includes error navigation, resource filtering, copy-to-clipboard, and a built-in legend for quick interpretation.

Chrome extension to give fast frequency data of Japanese words found in the current opened tab.

🫵 Where are you in the FEFU admission table?

🛠️ Ethereum key explorer and message signing tool. Paste a private key to get the public key, Keccak-256 hash, and address. Works entirely offline in your browser.

Browserbasiertes Sicherheitstool

A simple web-based code runner

A browser-based productivity tool that helps users reduce digital eye strain by following the 20-20-20 rule.

A privacy-focused, client-side web application for converting YouTube URLs to embed format with a terminal-inspired interface.

iFrame Inspector for authorized security testing and controlled target interaction, enabling iframe analysis, logging, interface manipulation, and detection tuning within ethical red-team assessments and research.

Validate FHIR resources directly in your browser. This open-source tool checks required fields, highlights missing elements, and flags invalid values for common resource types—all without server dependencies. Ideal for quick diagnostics, learning FHIR structure, or validating profiles securely.

🧰 A collection of simple JavaScript tools that can be run directly in the browser.

Free, instant online screen capture tool

A powerful browser-based tool for creating custom CSS icon systems using Unicode emojis. Generate production-ready CSS with live preview, search, filtering, and export/import functionality.

Browser for AI Agents with user interactability

Download videos from Twitter/X posts with a single click. This Chrome extension adds a download button next to the bookmark button on tweets containing videos.