Active Decoder
Base64 to HTML
Recover HTML markup from Base64 strings so you can inspect, edit, or reuse the source safely.
Processing
Fully client-side
Output
Preview, copy, or recover data
Privacy First
Your data stays with you.
Base64 Studio runs entirely in your browser. We do not upload, store, or retain your files, text, or decoded content on our servers, so your conversions remain private and under your control.
Processing
100% client-side
Storage
No server-side retention
Paste Base64
Decode Base64 content back into HTML markup.
Decode Notes
Raw Base64 and `data:*;base64,...` input are both supported. Whitespace and line breaks are ignored automatically.
Input Length
No content yet
Output Length
No output yet
HTML Output
Recovered markup is shown as source so you can inspect and copy it safely.
Paste a Base64 value to decode HTML output.