Local processing
The tool runs in the browser, so ordinary text stays on your device while you work.
Developer Text Tools
Base64 Encoder/Decoder
Convert plain text and Base64 text without sending it to a server.
Text Tools Workspace
Encode and decode text locally
Base64 is often used when text must safely carry data through URLs, APIs, email, or configuration values.
Fast copy workflow
Generate or transform the result, then copy it directly for use in code, docs, forms, or test data.
FAQ
Does this tool upload my text?
No. The calculation runs in your browser. ToolsLab does not upload the text you enter into this tool.
Can I use it on mobile?
Yes. The page is designed for quick edits on mobile and desktop browsers.