| What it does | Fast data grid and pivot table for React and JavaScript with virtual scrolling and Web Worker support
| A Rust performance profiler for finding CPU, memory, async, SQL, HTTP, I/O and lock bottlenecks
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| Stage | Startup
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| Founded | 2026
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| Based in | Not given
| PL
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| Pricing model | Freemium
| Open source
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| Pricing | Not given
| Free and open source under MIT license
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| Key features | - Virtual scrolling: handles millions of rows with only visible rows in the DOM
- Web Worker offload for filtering and sorting above ~20,000 rows
- Columnar encoding with typed arrays for fast sorting and filtering
- Server-side data loading and filtering
- Sorting and filtering with custom comparators
- Inline editing with validation and lookups
- Multi-level grouping and master-detail views
- Excel and PDF export with styling
- Calculated columns with spreadsheet formulas
- Interactive charts and drill-down
| - Time, CPU & memory profiling
- Async observability for futures, channels and streams
- I/O monitoring for files, TCP and compression streams
- SQL query profiling for sqlx and Diesel
- HTTP calls profiling for reqwest and ureq
- HTTP server profiling for axum routes
- Concurrency metrics for Mutex and RwLock
- Tokio runtime monitoring
- Prometheus & Grafana integration
- CI regression detection with automatic benchmarking
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| What makes it different | - Free Community edition with no expiry, watermark or license key for commercial use
- Paid versions never expire or lock users out; shipped applications keep running without watermarks
- No license server; keys checked locally via public key compiled into the package
- Handles millions of rows efficiently with only the visible window rendered
| - No overhead when disabled—all macros compile to no-ops
- Deterministic instruction counts with Callgrind for stable CI regression checks
- Instruments real applications with real workloads, not isolated benchmarks
- MCP server for AI agent integration
- Live TUI dashboard and static reports
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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) | 37 ● no change since last check | 54 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 6 | 13 |
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| Citation Flow (Majestic) | 28 | 34 |
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| Referring domains (Majestic) | 26 | 151 |
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