Best Online Tools from Astervamika in 2025: UML Designer, JSON Formatter, and More
Explore top free tools from Astervamika in 2025—including UML Diagram Generator, JSON Formatter, and cURL Command Builder—empowering developers, students, and web professionals.
Astervamika.in continues to be an essential hub for developers and tech enthusiasts by offering a suite of free, browser-based productivity tools in 2025. The platform stands out for its simplicity, speed, and privacy, providing everything from diagram generation to code validation, all without registration.
UML Diagram Generator
Astervamika’s UML Designer (uml.astervamika.in) streamlines the creation of UML diagrams, including class, sequence, and flowcharts. The tool allows drag-and-drop editing, quick export, and easy sharing—perfect for software planning and educational projects.
JSON Formatter & Validator
The JSON Formatter (json.astervamika.in) instantly formats and validates JSON data, highlighting errors and supporting visualization for clear and reliable code. It makes debugging and sharing JSON structures simple and effective.
cURL Command Builder
Featured alongside the JSON tool, Astervamika’s cURL Command Builder helps users create precise HTTP requests for API testing, streamlining tasks for web developers and testers.
Additional Highlights
100% free, privacy-first, no login required.
Designed for students, educators, professionals alike.
Lightweight, fast, and browser-based with regular updates.
Astervamika’s growing suite of online tools—UML Designer, JSON Formatter, cURL Command Builder—enhances productivity, fosters collaboration, and simplifies daily development needs.