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Base64 encoder and decoder
Convert text to Base64 or decode a Base64 value to restore readable content directly in your browser.
- 100% local
- Instant
- Free
- No account
- Works offline
- Clipboard
- Workspace compatible
Data not sent
Result
Why use this tool?
Base64 represents data as ASCII text. This tool encodes text or decodes a Base64 string without sending its content to a server.
Smart processing
Generate, convert, or validate technical data with purpose-built controls.
Supported formats
Technical formats and syntaxes suited to each generator, converter, or validator.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Fonctionnement
How does this tool work?
Base64 encoder and decoder processes your data directly in the browser using the logic specific to this tool. Convert text to Base64 or decode a Base64 value to restore readable content directly in your browser. Start by entering the required values or content, then adjust the available options before reviewing the result. The workflow is designed to stay clear and repeatable: changes to the inputs are handled by the relevant engine so you can check the output quickly before copying, downloading, or reusing it in another step of your work.
Use cases
Everyday use
Use Base64 encoder and decoder to complete a common task quickly without installing additional software or preparing a complicated manual process.
Result verification
Use Base64 encoder and decoder to check a value or transformation produced elsewhere and identify an input or method mistake more easily before relying on it.
Local workflow
Include Base64 encoder and decoder in a browser-based workflow when you want a simple, repeatable process that keeps processing as local as the tool allows.
Guide
How to use this tool
- 1
Enter the content
Paste the text to encode or the Base64 string to decode.
- 2
Choose an action
Select Encode or Decode depending on your goal.
- 3
Use the result
Copy the generated value or reset the tool.
Examples
Encode text
Input
Hello!Result
SGVsbG8hDecode a string
Input
Qm9uam91cg==Result
BonjourTips and best practices
- Base64 is encoding, not encryption.
- Keep UTF-8 encoding for accented characters.
- Check spaces and line breaks when a value looks invalid.
Frequently asked questions
What is Base64 used for?
Base64 is commonly used to carry binary data in text formats such as JSON, XML, HTML and email.
Is my data uploaded?
No. Encoding and decoding happen locally in your browser.
Does Base64 protect passwords?
No. Base64 provides no security and must not replace encryption or password hashing.
Was this tool useful?
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