Base64 encoder
Free online Base64 encoder. Convert any text or file content into Base64 instantly for data URIs, APIs, email attachments and web embedding.
Free Base64 Encoder — Convert Text to Base64 Instantly
Encode any string into Base64 in a single step. Base64 is the standard way to embed binary-safe text in JSON, build data: URIs for inline images, pass credentials in HTTP headers and prepare content for email transfer.
The encoding runs instantly and handles unicode text correctly.
How to use this tool
- Paste your text into the input box.
- The Base64 representation is generated automatically.
- Copy the encoded output to your clipboard.
Why use it on Shortlys?
- Correct unicode handling, not just ASCII
- Instant encoding with no server round-trips
- Free and unlimited
Frequently asked questions
How does the Base64 encoder work?
Simply provide your input on the page and the tool processes it instantly — most steps run automatically as you type or upload.
Do I need to install anything?
No installation and no browser extension. Everything runs on the website itself.
Can I use it on any device?
Yes — the tool works on Windows, macOS, Linux, Android and iOS through your browser.
Looking for more? Shortlys also offers 126+ free online tools, URL shortening and bio link pages — all in one place.
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