Base64 is a way to represent binary data (like images or files) as plain text using 64 characters. It’s widely used in email, HTML, CSS, and JSON.
Convert text or files to/from Base64 — fast, private, and 100% in your browser.
Private by design: all encoding/decoding runs locally in your browser.
Encode text, files, or binary data to Base64 instantly — or decode it back just as quickly.
Convert plain text, JSON, HTML, or binary files like images into Base64 and back.
Use Base64 encoding for embedding images, fonts, or data directly inside HTML, CSS, or JSON.
Simple input & output boxes with one-click copy, paste, and clear actions.
Handles any UTF-8 text or binary content with precision — no corrupted results.
Runs entirely in your browser — nothing is uploaded or stored. Perfect for sensitive data.
Easily convert between readable text, binary files, and Base64 strings — right in your browser.
Learn what Base64 is, how it works, and why you might need it.
Base64 is a way to represent binary data (like images or files) as plain text using 64 characters. It’s widely used in email, HTML, CSS, and JSON.
It’s handy for embedding images, fonts, or small files directly into code or emails without needing external files.
No — Base64 increases file size by about 33%. It’s for compatibility, not compression.
You can encode text, JSON, HTML, images, audio files, or any binary data into Base64 safely.
Paste the Base64 string into the decoder and click Decode. You’ll get the original text or file back.
No — Base64 is not encryption. It’s just encoding. Anyone can decode it back.
Yes! Emojis, symbols, and all UTF-8 characters can be safely encoded and decoded.
It depends on your browser memory. Very large files (hundreds of MBs) may cause slowdowns or crashes.
No. Never store or transmit passwords in Base64 — use proper hashing or encryption instead.
Yes. Everything runs locally in your browser — nothing is uploaded or stored on a server.