Tools / Base64 Encoder and Decoder
Base64 Encoder and Decoder
Encode and decode Base64 strings online. Free Base64 converter that supports Unicode text, API tokens, and data URLs.
Frequently asked questions
What is Base64 used for?
Base64 encodes binary data as ASCII text. It is common in data URLs, JWT tokens, email attachments, and API payloads.
Does this tool support Unicode?
Yes. Text is encoded with UTF-8 before Base64 conversion, so accented characters and emoji round-trip correctly.
Is Base64 encryption?
No. Base64 is encoding, not encryption. Anyone can decode it, so do not use it to protect secrets.
Let's build something you're proud of
I help businesses launch, optimize, and maintain their online presence, from code to SEO.
Let's talkRelated tools
HTML Minifier and Beautifier
Minify or beautify HTML online. Remove whitespace and comments to reduce file size, or format code for readability.
CSS Minifier and Beautifier
Minify CSS to reduce file size or beautify CSS for readable formatting. Free online CSS tool for developers.
HEX to RGB to HSL Conversion
Convert colors between HEX, RGB, and HSL formats instantly. Free online color converter for CSS and design work.
Table Generator
Generate HTML table code from rows and columns. Free online table generator with copy-to-clipboard for web projects.
Pixels to Ems Conversion
Convert pixels to ems and ems to pixels based on base font size. Free px to em calculator for responsive CSS.
JSON Formatter and Validator
Format, minify, and validate JSON online. Free JSON beautifier with syntax error messages for debugging APIs and config files.
Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Card markup for your pages. Free online meta tag builder with live preview.
URL Encoder and Decoder
Encode and decode URL strings online. Free percent-encoding tool for query parameters, slugs, and full URLs.