offlinewebtools.com browser-local workbench
Base64 Encoder/Decoder
Encode or decode text to/from Base64 with shared text controls
Shipped
Browser local
Paste, type, or load a sample. Everything runs in your browser.
Loaded sample: Simple text
17 characters
Base64 output will appear here.
Input length
17
Input bytes
17
Output length
0
Operation
Encode
Binary mode
Disabled
Options
What this tool does
Base64 Encoder/Decoder helps you encode or decode text to/from Base64 with shared text controls.
What you get
Base64 Encoder/Decoder produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.
Report a bug
If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.