Convert ODS to JSON

Convert ODS files to JSON locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

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How to convert ODS to JSON

Drop your .ods files above, or click Upload Files. You can add many files at once.
JSON is already selected as the output. Open the settings (gear icon) to fine-tune the result.
Click Convert All. SheetJS runs inside your browser through WebAssembly; nothing is uploaded.
Download your .json files as soon as each one finishes.

What to know about ODS to JSON conversion

JSON holds a single table: convert the active sheet only, or all sheets at once (as one JSON object keyed by sheet name).
Cell values are exported as they were last calculated; formulas, formatting and charts are not part of the output.
JSON is best for APIs, JavaScript apps and data pipelines, and opens in code editors, browsers and every programming language.

ODS vs JSON

Feature	ODS (OpenDocument Spreadsheet)	JSON (JSON Table)
Multiple sheets	Yes	No
Formulas and formatting	Yes	No
Best for	LibreOffice and open-standard documents	APIs, JavaScript apps and data pipelines
Opens in	LibreOffice, OpenOffice, Excel and Google Sheets	code editors, browsers and every programming language

ODS (OpenDocument Spreadsheet): The open standard spreadsheet format used by LibreOffice Calc and other office suites.

JSON (JSON Table): Tabular data as a JSON array of row objects, ideal for APIs and JavaScript applications.

Conversion options

Active sheet only or all sheets
Custom output file name

Frequently asked questions

Is it safe to convert ODS to JSON here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several ODS files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

Related conversions

Need the opposite? Convert JSON to ODS.

Convert ODS to other formats

Convert other formats to JSON

See every ODS converter and JSON converter, or browse the full converter directory.