Base64 Encoder
Encode text to Base64
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
Base64 output—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- Hello World → SGVsbG8gV29ybGQ=
- in-demandtools.com → aW4tZGVtYW5kdG9vbHMuY29t
Formula
Base64 is an encoding, not encryption. It splits the UTF-8 bytes into groups of three (24 bits) and maps each group to four printable characters from the A–Z a–z 0–9 + / alphabet, padding with = so the output length is a multiple of four. It is reversible by anyone, so never use it to hide secrets.
About Base64 Encoder
Encode text to Base64. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is the Base64 Encoder free to use? +
Yes, it is completely free with no registration or download required.
Is my text data private? +
Yes. All text processing happens locally in your browser. Your content is never uploaded or stored on our servers.
Does the Base64 Encoder work on mobile? +
Yes, it works on any device with instant, in-browser results.