Unicode text
Input: Hello local tools
Output: SGVsbG8gbG9jYWwgdG9vbHM=
Encoding
Base64 Encode/Decode
Encode and decode UTF-8 Base64 text locally, including URL-safe output when needed.
Runs locallyNo uploadNo external API
Input
Output
Paste text or load a sample to encode or decode Base64.
Paste text or load a sample to encode or decode Base64.
Runs in your browser. Input is not uploaded or sent to an external API.
Related tools
How to use Base64
Use this page for text Base64 work: API snippets, config values, small encoded fields, and quick Unicode round-trips.
- Paste or type your input.
- Load the sample if you want a quick check.
- Run the action, review the result, then copy only what you need.
Examples
Decode a small value
Input: eyJsb2NhbCI6dHJ1ZX0=
Output: {"local":true}
Common use cases
Inspect encoded fields
Decode a small Base64 value before formatting the result with JSON Formatter.
Prepare safe text fixtures
Encode short text values for examples without leaving the browser.
Limitations
Text, not files
For image files and data URIs, use Image to Base64 so MIME type and file size guardrails are visible.
FAQ
Does this Base64 tool upload my text?
No. Encoding and decoding happen in the current browser tab.
Is Base64 encryption?
No. Base64 is reversible encoding and should not be used as a secrecy layer.