Developer Tools
Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to text. No signup required, mobile friendly, and built for fast everyday use.
Interactive tool
Encoded: eyJuYW1lIjoiVG9vbE5lc3QiLCJmYXN0Ijp0cnVlfQ== Decoded if input is Base64: Not valid Base64
What is this tool?
Base64 Encode/Decode is a free online utility from ToolNest. It is designed for quick browser-based work, so you can complete common tasks without installing software or creating an account.
How to use it
- Enter your text, numbers, file, or settings in the tool area above.
- Review the generated result instantly.
- Use copy, download, reset, or example buttons where available.
Example use cases
- Students checking assignments or quick calculations.
- Office workers cleaning data and preparing everyday documents.
- Developers formatting, validating, or generating snippets.
- Creators and marketers producing assets and campaign helpers.
FAQ
Is the Base64 Encode/Decode free?
Yes. The Base64 Encode/Decode is free to use in your browser with no signup required.
Is my data stored?
Your input is processed in your browser when possible and is not saved to a backend.
Can I use this on mobile?
Yes. ToolNest tools are responsive and designed for phones, tablets, and desktops.