Is my database export safe with this tool?

Yes, absolutely! Since the converter operates 100% locally in your browser, none of your rows are ever transmitted over the network or saved anywhere. It is completely safe for sensitive database rows and customer records.

Can it parse columns containing stringified JSON?

Yes! By enabling the 'Parse nested JSON' option, any column containing stringified JSON (like postgres JSONB exports) will be cleanly parsed into real nested objects rather than standard text strings.

What delimiters are supported?

We support all common database formats including Commas (`,`), Semicolons (`;`), Tabs (`\t`), Pipes (`|`), and also support any custom separator you type in.

How are headers handled?

When converting CSV to JSON, you can choose if the first row is a header. If checked, it maps each cell to an object field; if unchecked, it generates a clean list of arrays. For JSON to CSV, it automatically flattens objects and inserts a top header line.

Is my database data uploaded to any server?

No! Everything runs 100% locally in your browser using WebAssembly. Your database and data never leave your computer.

What changes can I make to the database?

Since the database runs in your browser memory, you can run any DDL or DML statements (like INSERT, UPDATE, DELETE, CREATE TABLE). You can then download the updated database using the 'Save & Download' button.

How does the column filtering work?

Under each column header, you can type values to filter. You can also use operators like `>`, ` 100` or `IS NULL`) to filter numerically or logically.

Is there a file size limit?

Since the file is loaded into the browser's WebAssembly memory, files under 50MB run flawlessly. Files between 50MB and 150MB may work but can cause slight lag depending on your system's RAM. We warn you if your file exceeds 50MB.

Secure CSV to JSON / JSON to CSV Converter | DevUsta

Separator:

JSON Indentation:

CSV INPUT

JSON OUTPUT

Frequently Asked Questions

Everything you need to know about the DevUsta Tools platform.

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