Free tool
Base64 Converter
Encode text to Base64 or decode it back instantly.
Encode text to Base64 or decode it back instantly. Base64 Converter runs completely inside your browser, so it is instant, private and free to use as often as you like — no account, no upload, no waiting.
Features
- Runs 100% in your browser — your data never leaves your device
- Instant results with no sign-up, install or usage limit
- Works on mobile, tablet and desktop
- Copy or download the result in one tap
How to use Base64 Converter
- 1Open Base64 Converter and enter or upload your input above.
- 2Adjust the available options until the result matches what you need.
- 3Review the output, then copy or download it.
What is Base64?
Base64 encodes binary or text data using only 64 safe ASCII characters. It is used to embed images in CSS, send attachments over email, and pass tokens through systems that only accept plain text.
Why use Base64 Converter?
Most alternatives ask you to register, queue your file on a server, or bury the result under adverts. Base64 Converter loads in under a second, keeps your input on your own device, and gives you a clean result you can copy straight away — which matters when you use a utility like this several times a day.
Example
Drop in a real sample, hit the action button and Base64 Converter returns the finished result immediately. Try it with a small input first to see the format, then reuse it for the real work.
Frequently Asked Questions
- Is Base64 encryption?
- No. It is an encoding, not a cipher — anyone can decode it. Never use it to protect secrets.
- Is my data uploaded?
- No, encoding and decoding both run locally in your browser.