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Encoding tools

Base64 and URL encode/decode — text in, text out, computed entirely in your browser.

- Base64

Encode and decode, with a URL-safe alphabet option.
 (/encoding/base64)
- URL encoder

Percent-encode components or whole URIs, and back.
 (/encoding/url-encoder)
- Image ⇄ Base64

Image files to data URLs and back — format read from bytes, dimensions decoded, nothing re-encoded.
 (/encoding/image-base64)

3 tool s · everything is computed locally, nothing leaves your device.

Canonical HTML: https://nutter.tools/encoding
Markdown version: https://nutter.tools/encoding/index.md
Plain-text version: https://nutter.tools/encoding/index.txt
Agent index: https://nutter.tools/llms.txt