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 text and images with Base64 without sending them to a server.
Text Tools Workspace
How to use this tool
Convert plain text to or from Base64, or switch to image mode to encode, preview, and download image data.
Steps
- Choose text or image processing and enter the source value or select an image.
- Use standard Base64 for files and data, or URL-safe Base64 when the value must fit in a URL.
- Check decoded text or preview the image before copying or downloading it.
Encode text and images locally
Base64 is often used when text or image data must safely travel 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.