| What it does | Free in-browser viewer for scientific and ML data files
| A live island for your MacBook's notch that keeps pace with your daily workflow
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| Freemium
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| Pricing | Free
| 2-day free trial with no payment required. Yearly: $9.99/year. Lifetime: $23.99 one-time.
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| Key features | - Browse HDF5 groups, datasets and attributes
- Read Parquet schemas, row groups and column statistics
- Open Zarr v2 and v3 stores from a folder or a zip
- Inspect Apache Arrow and Feather files
- View CSV, TSV and Excel spreadsheets
- Load NumPy .npy and .npz arrays
- List safetensors tensors and step through TFRecord records
- Slice N-dimensional arrays and render heatmaps
- Parse every file locally, with no upload
- Work offline after page loads
| - Create custom TypeScript extensions with AdanotchKit SDK
- Native SwiftUI rendering with 120 FPS ProMotion support
- Isolated JavaScriptCore process for each extension
- Strict permission model with user approval
- AI coding agent integration with Claude, Codex, Cursor
- System monitoring widgets for CPU, memory, battery
- External API fetching with caching support
- Local-first data storage with no cloud sync or telemetry
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| What makes it different | - All data processing happens in your browser with no server uploads
- Opens very large files by reading only the bytes you view
- No installation, account or login required
- Comprehensive articles explaining data format specifications
| - Built natively with Swift 6 instead of Electron, consuming minimal CPU and battery
- Local-first and private by design with zero telemetry or cloud tracking
- Developer-first with TypeScript SDK and AI coding agent supervision
- Fair pricing with 2-day free trial requiring no payment details
- Extensions run in isolated processes so crashes never freeze the island
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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) | 22 | 0 |
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| Referring domains (Majestic) | 20 | 0 |
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ViewKit
Adanotch