feat: add CSV/JSON export for current view
@gordonmurray is already working on this.
Since Apr 6, 2026.
Assessment
This issue has not been assessed yet.
Description
There's currently no way to export data from the viewer. Adding a download button that exports the current page of results as CSV or JSON would be useful for quick data extraction without needing to write scripts against the Lance files directly.
Proposed approach:
- Add an export button to the UI that downloads the currently displayed rows
- Support CSV and JSON formats
- Client-side generation from the already-fetched data (no backend changes needed)
- Respect the current column filter selection
- Dominant language
- Python
- Stars
- 65
- Forks
- 8
- PR merge metrics
- No merged PRs in 30d
Getting set up
- No Dockerfile or Docker Compose file
- No pull request template
- Read the contributing guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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lance-format/lance-data-viewer#89 · 2 comments ·
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