Technology
Convert data between formats developers work with often: Base64 text encoding and binary, decimal and hexadecimal numbers.
Encode or decode text as standard Base64, or convert whole numbers between binary, decimal and hexadecimal.
Decoding a Base64-encoded string, or converting a hexadecimal colour value to decimal.
Conventions and limitations
Both tools work entirely on text you type. Neither accepts a file upload, and Base64 here is an encoding, not encryption.
9 tools in this category
- Base64 Encoder & DecoderEncode text as Base64, or decode Base64 back to readable text, without leaving your browser.
- Binary / Decimal / Hex ConverterConvert numbers between binary, decimal and hexadecimal.
- JSON FormatterFormat, compact or check JSON, with clear errors that show the line and column.
- URL Encoder & DecoderPercent encode or decode text for use in one part of a web address.
- Hash GeneratorGenerate SHA-256, SHA-384 and SHA-512 hashes of text in your browser.
- Regex TesterTest a JavaScript regular expression against text and see every match and group.
- Colour ConverterConvert colours between HEX, RGB and HSL, with a preview beside the values.
- CSS Unit ConverterConvert between the fixed CSS length units px, in, cm, mm, Q, pt and pc.
- HTML Entity Encoder & DecoderEncode text as HTML entities, or decode entities back to text.