- How do I open a JSON file on my computer without installing software?
- To open a JSON file online, click "Open JSON File from Device" or drag and drop your .json file directly into the browser window. Our client-side viewer instantly parses the file into an expandable, color-coded, and searchable tree structure.
- Can I open JSONL (JSON Lines) and JSON log files?
- Yes! Many application loggers output JSONL (one JSON object per line). You can open JSONL files and server logs by uploading them or pasting their content. If multiple records are detected, our viewer wraps them in an array to provide an interactive log viewer.
- Can I search for specific keys and values in large JSON files?
- Yes! Use the search bar above the tree viewer to find matching property keys, string values, or numeric values across all nested levels. Matching nodes and parents will automatically expand with highlighted terms.
- How do I copy the JSON path or subtree of a selected node?
- Click on any node in the tree hierarchy. The bottom inspector bar reveals its full JSONPath expression (e.g. $.database.collections[0].name) and provides a "Copy Node JSON" button to extract that exact subtree.
- What is the maximum file size for opening JSON files?
- You can comfortably open JSON files up to 5 MB in size. Large collections of child nodes are rendered in virtualized chunks of 100 items to keep the browser snappy and responsive.
- Is it safe to view sensitive JSON files with this tool?
- Yes. The file is processed purely in your browser memory. Nothing is uploaded to remote servers or cloud databases, making it safe for production configuration files, credentials, and customer records.