Base64 Encoder/Decoder Instantly

Secure and professional Base64 utility by tool-util.com. All processing is done locally in your browser—your data never leaves your device.

Editor
Input
Output

How it works

input

1. Input Content

Paste your text or Base64 string into the editor. We support large amounts of data.

shieldLocal Processing
settings_suggest

2. Process Instantly

Choose whether to encode or decode and hit convert for immediate results.

boltInstant Conversion
download

3. Export Results

Copy the result to your clipboard with one click. RFC compliant Base64 output.

check_circleRFC Compliant

Frequently Asked Questions

What is Base64 encoding?expand_more
Is this Base64 tool secure?expand_more
Can I convert images to Base64 here?expand_more
Are there size limits for encoding?expand_more