⊞data

CSV CHECKER

Upload any CSV file and instantly see per-column statistics: unique value counts, missing data counts, and a scrollable data preview. Built to handle very large files using streamed parsing — no server upload required.

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Drop a CSV file here

or click to browse

Any size — processed entirely in your browser

Other Tools

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JSON Formatter

Format, validate, and minify JSON data instantly in your browser.

jsonformattervalidator

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to plaintext.

base64encodedecode

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Password Generator

Generate cryptographically secure passwords with custom rules.

passwordsecurityrandom