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Spreadsheet tool
Map spreadsheet rows to JSON objects. Perfect for APIs and configs.
Excel to JSON maps spreadsheet rows to JSON objects for APIs, configs, and app seed data. Upload an XLSX/XLS sheet, preview the table, and download or copy a JSON array — processed in the browser so workbook contents stay on your device.
Product and engineering teams often receive requirements or lookup tables as Excel files. Turning those rows into JSON avoids manual retyping and keeps field names aligned with headers. Each data row becomes one object; header cells become property names.
Clean headers before converting: avoid duplicate column names, trailing spaces, and merged title rows above the real header. If the first row is a report title, delete it in Excel or use CSV Column Manager after exporting CSV so keys stay valid and unique.
UTF-8 matters when JSON will be committed to git or loaded by Node and browsers. After export, pretty-print in a JSON formatter if you need readable diffs. For multi-sheet workbooks, convert one sheet at a time so each file maps to one array.
Spreadsheet tools on ezToolFlow process CSV/Excel-style data in the browser when possible. Prefer UTF-8 CSV for best compatibility.
Drop an .xlsx or .xls file and select the sheet that contains the tabular data (header row + records).
Confirm headers and sample values. Empty rows are skipped; blank cells become empty strings in JSON.
Download or copy an array of objects ready for APIs, config files, or further transformation in code.
Convert ops-maintained Excel lists into JSON consumed by services.
Map product or content grids from marketing spreadsheets into JSON payloads.
Generate JSON datasets from analyst workbooks for demos and QA.
Quick answers about tools, privacy, limits, and pricing.
About 20 MB is recommended so the browser stays responsive. Very large sheets may freeze on low-memory devices.
Rows map to an array of objects. One data row produces a one-element array; many rows produce many objects.
Cell values are read as displayed/text-friendly strings where possible. If you need ISO timestamps, format those columns in Excel before converting.
Yes — parsing and JSON generation are intended for client-side use so the spreadsheet is not required to leave your machine.
Header text is used as-is for keys. Rename columns to API-friendly names (for example userId) before conversion if your consumer is strict.
Delete or reorder columns first with CSV Column Manager (after CSV export) or remove columns in Excel, then run Excel to JSON.
Wide sheets with many columns and rows produce large arrays. Filter rows or drop unused columns before converting, and prefer CSV intermediates for very large tables.
Yes. Excel to JSON is free to use on ezToolFlow. Guests and free accounts may have daily limits on some tools; premium tiers can raise or remove those limits. AI tools may also spend credits.
For browser-based tools, processing runs on your device when possible and files are not uploaded for conversion. Optional accounts, usage limits, and AI features are described in our Privacy Policy.
No for most tools — you can start as a guest. An account helps keep higher daily limits and saved work (for example AI resumes).
Keep working with similar free tools — no signup required for most.
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