Base64 Encode
FreeEncode text or files to Base64 string
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About Base64 Encode
Sometimes you need to move binary or text data through a channel that only safely carries plain ASCII: an HTTP header, a JSON field, a data URI, or a config value. Base64 encoding makes that possible by representing your input with a safe 64-character alphabet. This tool encodes whatever you paste into a Base64 string ready to embed wherever raw bytes would break.
Paste text and the converter applies standard Base64 encoding, producing a string you can drop into your code, request, or config. It is free, runs in your browser, needs no signup, and returns the result instantly. Encoding is not encryption, so anyone can decode it back; it is for safe transport and embedding, not for hiding secrets.
Common uses
- Embedding a small asset or string into a data URI
- Encoding credentials for a Basic Authorization header
- Putting binary-ish data into a JSON or config field safely
- Preparing a payload for a system that only accepts ASCII text
- Generating a Base64 token from a string for testing
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- Accurate conversion
- Multiple formats
- Instant results
FAQ
Is Base64 encoding the same as encryption?
No. It is a reversible encoding anyone can decode. Never use it to protect secrets; use real encryption for that.
Does it handle Unicode text?
Yes. Text is encoded by its byte representation, so non-ASCII characters are preserved and decode back correctly.
Why is the output longer than my input?
Base64 represents every 3 bytes as 4 characters, so encoded output is roughly a third larger than the original.
What are the trailing equals signs?
They are padding characters that round the output to a multiple of four, which is part of standard Base64.
Can I use Base64 Encode on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.