Excel to JSON Convert
Turn spreadsheets into clean JSON for APIs, apps, and scripts. Every sheet becomes an array of objects with the header row as keys — drop your files in and download ready-to-use JSON.
Why convert Excel to JSON with AnyDocFlow?
API-Ready Output
Each worksheet becomes an array of row objects keyed by its header — the exact shape your REST API, JavaScript app, or data pipeline expects.
Multi-Sheet Support
Workbooks with several sheets produce one JSON object keyed by sheet name, so no worksheet is left behind.
Smart Types
Numbers stay numbers and text stays text — values keep their native types instead of every cell becoming a string.
Batch Convert & ZIP Download
Convert many files at once and download every result individually or as a single ZIP archive.
No Excel or Office Required
Everything runs in your browser with SheetJS. No Microsoft Excel, no plugins, and nothing to install.
100% Private & Free
Files never leave your device. Conversion is fully local, free, and needs no account or registration.
About Excel to JSON conversion
JSON is the lingua franca of web APIs, and spreadsheets are where much of that data lives. AnyDocFlow’s Excel to JSON converter reads your XLSX, XLS, ODS, CSV, or TSV files and rebuilds them as structured JSON: every worksheet becomes an array of objects, using the first row as the property names and each following row as one object. Values keep their types, so the output drops straight into your code. All conversion happens in your browser — nothing is uploaded, and your data never leaves your device.
How to convert Excel to JSON
Three simple steps — no account, no software, and no data leaving your device.
Add your files
Click the drop zone or drag XLSX, XLS, ODS, CSV, or TSV files into the page. You can select several files at once.
Wait for conversion
Each file is read locally and every sheet is converted to a JSON array of objects — usually in under a second.
Download your JSON
Download each converted file with one click, or press Download all to receive every result as a single ZIP archive.
Notes
There is no file size limit and everything runs locally. Empty cells become null in the JSON output; the first row of each sheet is used as the object keys, so make sure your header row is the first row. Sheet and column names are preserved as-is.