Why it exists
JSONL Studio started during a research session where existing tools did not provide the desired balance of visual inspection, nested exploration and client-side privacy. It helps inspect and prune JSONL datasets directly in the browser.
Project media

Architecture
- Files are loaded through drag and drop.
- JSONL rows are parsed line by line.
- Nested objects and arrays are represented as interactive entry points.
- A modal stack lets users explore deeply nested structures and return step by step.
- Exports are generated locally from the filtered schema.
Key features
- Recursive table view.
- Object and array badges.
- Granular pruning at root and nested levels.
- Modal stack navigation.
- 100% client-side processing.
Design decisions
The project treats nested data as a navigation problem rather than a formatting problem, making dataset cleanup faster without sending data to a server.