How to use the Binary, Hex & Decimal Converter tool
- Type into whichever box matches the number you have.
- Read the converted values in the other boxes.
- Use the custom base row for base 3, base 32, base 36 and others.
Frequently asked questions
Can I paste numbers with 0x or 0b prefixes?
Yes. Prefixes like 0x, 0b and 0o, plus spaces and underscores used as separators, are ignored.
Is there a limit on number size?
No practical limit. The converter uses arbitrary-precision integers, so 128-bit values and larger convert exactly.
Are my files uploaded to a server?
No. HushConverts converts everything with code that runs in your browser, so your text and files stay on your device. You can even use most tools offline once the page has loaded.
More encoding & developer
- Base64 EncodeTEXT → BASE64Turn any text into Base64.
- Base64 DecodeBASE64 → TEXTPaste a Base64 string to turn it back into normal text.
- Base64 to ImageBASE64 → IMAGEPaste a Base64 string or a full data:image URI to preview the image and download it as a file.
- Image to Base64IMAGE → BASE64Drop an image to get its Base64 in the format you need: a data URI, raw Base64, a CSS background rule or an HTML img tag.
- URL Encode / DecodeTEXT → URLMake text safe to put in a URL, or turn a percent-encoded string like %E2%9C%93 back into readable text.
- HTML Entity Encode / DecodeTEXT → HTMLEscape text so it displays literally in HTML, or decode entities such as &, < and © back into the characters they stand for.
- JSON Formatter & ValidatorJSON → JSONPaste JSON to pretty-print it, minify it, or find out exactly where it’s broken.
- JSON to CSVJSON → CSVTurn a JSON array of objects into a spreadsheet-ready CSV.