| What it does | A full-stack web application framework that accelerates development with convention over configuration
| Online JAR viewer and Java decompiler that runs entirely in your browser with no file uploads
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| Stage | Established
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Open source
| Free
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| Pricing | Not given
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| Key features | - Active Record for database modeling
- Action Controllers for request handling
- Action Views with Ruby and HTML templates
- Action Dispatch routing
- HTML rendering and database updates
- Email sending and receiving
- WebSocket support for live pages
- Asynchronous job processing
- Cloud file storage
- Security protections
| - Inspect decompiled Java source code locally
- View JVM bytecode instructions, operands, and labels
- Explore class structure, fields, methods, and constant pool
- Section-aware hex view of class file bytes
- Support for JAR, WAR, and standalone CLASS files
- Search and filter files and classes by name
- Load remote JAR files from URLs with CORS support
- Preview and export text and image resources
- Web Workers for responsive decompilation
- Safety limits for archive processing: 512 MiB input, 100,000 entries, 2 GiB expanded content
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| What makes it different | - Convention over configuration reduces development complexity
- Optimized for developer happiness and productivity
- Complete full-stack framework with no missing pieces
- Proven at scale with millions of users and billions in valuations
- Strong community with over six thousand code contributors
| - 100% in-browser processing with no file uploads to servers
- Privacy-first design where files are processed locally only
- No installation, account, or Java runtime required
- Multiple inspection views: source, bytecode, hex, and constant pool
- Direct JAR URL loading from CORS-enabled servers
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 87 ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 73 | 0 |
| Citation Flow (Majestic) | 57 | 26 |
| Referring domains (Majestic) | 18818 | 18 |