Preview, edit, and export JSON data to CSV, Excel, or Markdown. Real-time table view. 100% in your browser — no server storage, no signup.
100% browser-based. Your data never leaves your device.
Convert JSON arrays, nested objects, and NDJSON to CSV with custom delimiters, encoding options, and an editable table preview.
Try itConvert CSV data to clean JSON with real-time live preview. Edit CSV on the left and see JSON update instantly on the right. 100% browser-based.
Try itConvert JSON data to real Excel (.xlsx) files. Preview in an editable table, then download — ready for Excel, Google Sheets, or Numbers.
Try itConvert JSON arrays to clean Markdown tables. Ready for GitHub README, Notion, docs, and wiki. Edit cells before exporting.
Try itPaste or upload JSON, view as an editable table, modify cells, and export back to JSON. Supports nested objects, arrays, and NDJSON.
Try itConvert JSON to valid XML with real-time preview. Supports nested objects, arrays, and custom root element names. 100% browser-based.
Try itConvert XML to valid JSON with real-time preview. Supports attributes, nested elements, arrays, and CDATA. Browser-native parsing, no upload.
Try itConvert Markdown tables to valid JSON with real-time preview and editable cells. Supports multiple tables, combined JSON, and ZIP download.
Try itValidate JSON against JSON Schema in real-time. Generate schemas from data, check field types, and detect missing required properties.
Try itInteractive HTML tables, sortable columns, nested object handling, and CSS styling.
Read guideVisual node editing, three viewing modes, undo/redo, and real-time validation.
Read guideLine-by-line vs semantic diff, API monitoring, config audits, and migration validation.
Read guideTwo most common JSON errors, manual vs automated repair, and lint prevention.
Read guideAdvanced wildcard syntax, filter operators, recursive descent, and performance tips.
Read guideK8s manifests, multi-document YAML, CI/CD pipelines, and schema validation.
Read guideFeature comparison, viewer vs editor, large file handling, and privacy-first browsing.
Read guideStreaming data, log files, inconsistent fields, and big data pipeline conversion.
Read guideBootstrap/Tailwind classes, row highlighting, responsive design, and HTML export.
Read guideAuto-detect 9 timestamp formats. Convert entire columns between 5 output formats in one click.
Read guideYour JSON data is processed entirely in your browser. It is never stored on any server. No backend, no tracking, no signup.
Unlike other converters, you can edit cells directly in the preview table. Sort, hide columns, insert rows, and undo changes before downloading.
Automatically detects arrays, nested objects, NDJSON, API wrapper responses, and single objects. No manual configuration needed.
Download as CSV, Excel (.xlsx), or Markdown. Switch between formats with one click. Configure delimiters, encoding, and line endings for CSV.
JSONXX supports converting JSON to CSV (.csv), Excel (.xlsx), and Markdown (.md). Each converter features real-time preview, inline editing, and smart auto-detection of nested objects, NDJSON, and API wrapper responses.
Yes. All processing happens 100% in your browser. Your data is never uploaded to or stored on any server. There is no backend server and no tracking of your content. This makes it safe for converting sensitive data and API responses.
Yes — that is the core feature of JSONXX. After pasting or uploading JSON, you see an editable table preview. Double-click any cell to edit, sort columns by clicking headers, hide columns, insert or delete rows, and undo/redo changes. All edits are reflected in the final export.
Yes. Nested JSON objects are automatically flattened using dot notation (e.g., user.address.city becomes the column header). NDJSON (Newline-Delimited JSON) is auto-detected and each line becomes a separate row. Single JSON objects and API wrapper responses (e.g., {"data": {"items": [...]}}) are also handled automatically.
Yes. JSONXX is completely free with no signup required. Convert as many JSON files as you need.