Excel to JSON Converter | Withdata DataFileConverter

Convert Excel (XLS/XLSX) to JSON effortlessly, locally, and at lightning speed—support for single file, batch conversion, cloud Excel, export Excel to JSONL, JSON arrays and more. Works on Windows, Linux & macOS, no Microsoft Excel required.

Download DataFileConverter Now Online Excel to JSON (＜10M)

Why Choose Withdata DataFileConverter for Excel to JSON?

⚡ Blazing Fast Conversion

Convert millions of Excel rows to JSON in under a minute

🔒 100% Local & Secure

No file uploads to third-party servers—all conversions happen on your device

🖥️ Cross-Platform Support

Full compatibility with Windows, Linux (Debian/Ubuntu/RHEL) and macOS

📄 No Excel Installation Needed

Works independently of Microsoft Excel or Office suites

🔧 Dual Modes

Intuitive GUI (point-and-click) and CLI (command line) for automation/scheduled tasks

📋 Flexible JSON Outputs

Support for standard JSON, JSON Lines (JSONL/NDJSON/LDJSON), JSON arrays & named arrays

All Excel to JSON Conversion Features You Need

We cover every Excel to JSON use case—from basic single-file conversion to advanced batch, cloud and sheet-specific processing.

1. Convert Single Excel File to JSON

Turn a single XLS/XLSX file into well-formatted JSON with custom column mapping, date format configuration and encoding settings (UTF-8 default) 📷. Perfect for one-off conversions of employee, sales or inventory data.

2. Merge Multiple Excel Files into One JSON

Combine data from multiple Excel files (same schema) into a single JSON file 📷 — no manual copy-pasting. Perfect for aggregating monthly reports, regional data or multi-sheet datasets.

3. Batch Convert Excel Files to JSON (1:1)

Convert a folder of Excel files to individual JSON files (one JSON per Excel) in one go 📷 — preserves file names and folder structure. Perfect for mass conversion of bulk datasets.

4. Convert Excel Sheets to Separate JSON Files

Extract each sheet in a multi-sheet Excel file to its own JSON file 📷 — select specific sheets to convert (no unnecessary data). Perfect for splitting master workbooks into individual datasets.

5. Convert Cloud/URL Excel to JSON

Pull Excel files directly from cloud storage or web URLs (no manual download) and convert to JSON 📷 — supports all public Excel file URLs. Perfect for cloud-hosted public datasets.

6. Excel to JSON Lines (JSONL/NDJSON/LDJSON)

Convert Excel to newline-delimited JSON (JSONL) for big data, streaming and log processing 📷 — ideal for tools like Elasticsearch, Kafka and Spark. Perfect for big data pipelines.

7. Excel to JSON Array (Named/Unnamed)

Generate JSON arrays (with custom root names like employees or unnamed arrays) 📷 — for seamless integration with APIs, frontends and databases. Perfect for app development and API payloads.

How to Convert Excel to JSON (GUI Mode)

4 Simple Steps—no technical skills required, just a few mouse clicks:

  1. Start a New Convert: Select From: File/Files/URL > Excel and To: File/Files > JSON 📷
  2. Select Source: Choose your Excel file(s), sheets or cloud URL—preview data before conversion 📷
  3. Configure Target: Set JSON format (standard/JSONL/array), encoding, column mapping and date formats 📷
  4. Convert: Click Start Convert—get your JSON file in seconds (view log for conversion details) 📷
Pro Tip: Save your conversion session for repeated use (e.g., monthly report conversions)!

Automate Excel to JSON (CLI Mode)

For DevOps, data engineers and automation workflows—run conversions via command line:

Windows

Create .bat files + Windows Task Scheduler

Linux/macOS

Create .sh files + Crontab

Unlimited Automation

Integrate with CI/CD pipelines, shell scripts and data pipelines

Key CLI Benefits: Scheduled conversions, stream processing and bulk operations without manual intervention.

Conversion Specs & Compatibility

Supported Excel Formats

XLS, XLSX (supports ＞4GB files)

Supported JSON Outputs

Standard JSON, JSONL/NDJSON/LDJSON, JSON arrays

Encoding

UTF-8 (default), Unicode, custom encodings

Date Formats

Customizable (yyyy-mm-dd, yyyy-mm-dd Thh:mi:ss.fffZ)

OS Support

Windows (32/64 bit), Linux (.deb/.rpm), macOS

FAQ

How long does Excel to JSON conversion take? +
Blazing fast—millions of rows in minutes for local files; cloud file conversion time depends on download speed (no processing lag).
Is my data safe with DataFileConverter? +
100% safe—all conversions happen locally on your device. No files are uploaded to our servers or third-party services.
Can I convert Excel to JSON without Microsoft Excel? +
Yes! DataFileConverter works independently—no Excel/Office installation required.
Does it support custom column mapping? +
Yes—map source Excel columns to custom JSON keys, exclude unused columns and set custom date/number formats.
Can I schedule Excel to JSON conversions? +
Yes—use the CLI mode to create script files (.bat/.sh) and schedule with Windows Task Scheduler (Windows) or Crontab (Linux/macOS).

Get Started Today

Convert Excel to JSON the fast, safe and flexible way—no technical skills required for GUI, powerful automation for CLI.

Download DataFileConverter