| What it does | Free in-browser viewer for scientific and ML data files
| A calm Mac app that runs your Claude Code sessions side by side and tells you which one needs you
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| Stage | Not given
| MVP
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Not given
| Free
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| Pricing | Free
| Not given
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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
| - Dashboard grouped by whose move it is
- Notifications only when a session, reviewer, or CI needs you
- Chat view and the real Claude Code terminal
- Automatic PR tracking across repos and worktrees
- Deep focus mode
- Sessions that keep running across restarts and updates
- Import existing Claude Code sessions
- Next steps with owners and status Claude keeps up to date
- Works with GitHub, GitLab, Jira, and Azure Boards
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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
| - All data stays on your Mac with no account required
- No tracking or analytics
- Notarized by Apple with built-in privacy
- Quiet until something needs you
- Free beta with no pricing required
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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 | 1 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 22 | 13 |
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| Referring domains (Majestic) | 20 | 23 |
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ViewKit
Perch