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Free ToolNo signup · Runs in browser

Number Base Converter

Convert between binary, octal, decimal, hex

Converters

Input Number

From Base

Binary (base 2)0b11111111

Octal (base 8)0o377

Decimal (base 10)255

Hexadecimal (base 16)0xFF

Base 32 (base 32)7V

Base 36 (base 36)73

Custom Base:(2–36)

Timestamp Converter

Unix timestamp ↔ human date

JSON → CSV

Export JSON arrays as CSV files

Markdown → HTML

Convert Markdown to HTML with live preview

Date Difference

Calculate the exact time between two dates

Timezone Converter

Convert times across timezones simultaneously

CSV Cleaner

Clean, deduplicate, and normalize CSV data

Results appear instantly — everything runs in your browser.

Your data never leaves your device. No account required.

No subscription, no sign-up, no paywalls.

One-click copy for all outputs.