| What it does | Open-source TypeScript toolkit for wallet connection, multi-chain sign-in and transaction tracking on EVM and Solana
| Online JAR viewer and Java decompiler that runs entirely in your browser with no file uploads
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| Stage | Startup
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| Founded | 2025
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| Based in | UA
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| Pricing model | Open source
| Free
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| Pricing | All client packages are free under Apache-2.0. Quasar Cloud is free during public beta with 1,000 free quota units per organization. Quasar Community Edition is free and self-hosted.
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| Key features | - Wallet connection for EVM and Solana wallets
- Multi-chain sign-in with CAIP-122 (SIWX)
- Transaction tracking that survives page reloads
- React UI components with theming
- Server-side transaction history and webhooks
- Self-hosted backend option
- No telemetry collection
- Docker Compose deployment for Community Edition
| - 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 | - Open-source with Apache-2.0 license and no vendor lock-in
- No monthly active user (MAU) pricing model
- Supports both EVM and Solana chains natively
- Local-first state that persists and survives page reloads
- Follows open wallet standards (CAIP-122, EIP-6963, Wallet Standard)
| - 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 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 13 | 26 |
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| Referring domains (Majestic) | 3 | 18 |
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TUWA
jarpeek