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Convert XLS to JSON
Convert XLS to JSON format — 100% browser-based, no upload required.
2 cores · low tier
Drop a file here or click to select
Format will be auto-detected
About these formats
Source
XLS
Microsoft Excel 97-2003Legacy Excel binary format. Limited to 65,536 rows and 256 columns, replaced by XLSX.
Best for
Legacy spreadsheet compatibilityOlder systems
Advantages
- + Legacy compatibility
- + Simple format
Limitations
- − Row/column limits
- − Outdated
- − No modern features
Target
JSON
JavaScript Object NotationLightweight data interchange format. Human-readable and easy to parse — the standard for web APIs and config files.
Best for
Web APIsConfigurationData exchangeNoSQL databases
Advantages
- + Human readable
- + Easy to parse
- + Language agnostic
- + Web standard
Limitations
- − No comments
- − No date type
- − Verbose for large data