| What it does | Open-source TypeScript toolkit for wallet connection, multi-chain sign-in and transaction tracking on EVM and Solana
| Compare files, folders and archives side by side on Windows
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| Stage | Startup
| Established
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| Founded | 2025
| 1995
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| Based in | UA
| AT
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| Pricing model | Open source
| Free trial
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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.
| from $35 one-time, per user. Free 30-day full-featured evaluation. Volume tiers available for teams. Free 2.x upgrade for WDiff32 licensees.
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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
| - Side-by-side text comparison with in-place editing
- Archive support for ZIP, 7-Zip, RAR, tar, CAB and ISO formats
- Rename detection for files and archives
- Recursive directory comparison with ignore rules
- Binary byte-by-byte comparison mode
- Folder synchronization with preview
- Export reports as HTML, plain text or JSON
- Integration with git, TortoiseGit, TortoiseSVN, IDEs and file managers
- Persistent hash cache for fast repeat comparisons
- Full Unicode support including UTF-8 and UTF-16
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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)
| - No cloud, no accounts, no extraction required for archive comparison
- Rename detection identifies moved files instead of showing as delete plus add
- Native Windows application with persistent hash cache for speed
- Works without leaving the diff: edit, merge and save within the same window
- Free full-featured 30-day trial with no functional limits
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| Free plan | Not given
| 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
| Not given
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 2 ● no change since last check |
| Trust Flow (Majestic) | 0 | 8 |
| Citation Flow (Majestic) | 13 | 9 |
| Referring domains (Majestic) | 3 | 7 |