Base64-encode Text
Encode text to Base64 (UTF-8 aware). Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Base64-encode Text
- 1. Paste the text to encode. Paste or type the text you want converted into the input pane. Base64-encode Text treats the input as UTF-8 and produces a Base64 string as soon as it arrives.
- 2. Decide on URL-safe output. Turn on URL-safe (Base64URL) if the result needs to sit inside a URL or filename, since it swaps the standard + and / characters for ones that don't need escaping.
- 3. Copy the Base64 string. Click copy on the output pane and paste the encoded value into an auth header, a config file or anywhere plain text needs a compact Base64 representation instead.
When to use Base64-encode Text
Base64-encode Text converts UTF-8 text into a Base64 string, with an option for the URL-safe variant that avoids characters a URL or filename can't hold directly. It's the encoding step behind tokens, headers and embedded binary-safe text.
- Embedding text in a URL parameter. A short piece of text passed as a URL parameter needs Base64 encoding to survive transport safely, with URL-safe turned on so it doesn't need further percent-encoding.
- Preparing a Basic Auth header value. HTTP Basic Authentication expects a username and password joined by a colon and then Base64 encoded. Pasting that combined string here produces the exact header value to send.
- Encoding a placeholder secret for a .env file. A config template that documents an expected secret format can show a Base64-encoded placeholder value instead of a real credential, giving contributors the right shape to fill in.
Examples
Encode
Input
Hello
Output
SGVsbG8=
About the Base64-encode Text tool
Base64-encode Text runs as plain JavaScript in your browser tab, with no server behind it. Encode text to Base64 (UTF-8 aware). Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Text Tools section, 211 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the URL-safe (Base64URL) setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Base64-encode Text free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.