Base64
Searching for base64 usually means you're stuck mid-task and just need a straight answer — not a history lesson. Here's the free Base64 Encoder / Decoder that handles it, plus what to watch out for.
Open the tool
UTF-8 vs ASCII string configuration toggles; image string previews.
Open the Base64 Encoder / Decoder →🚀 Quick-Start Guide
Paste your code or data into the box above. Pick the output format you need. Copy the converted result with one click.
Common Scenarios & Troubleshooting
Include a "Live Data URI Generator" layout block for embedded frontend images.
Note on errors: the most common slip-up here is a missing comma, an unclosed bracket, or a stray character carried over from a copy-paste. If that happens, double-check your input rather than the tool — the calculation itself runs the same way every time.
Your data stays private. Everything you type runs locally in your own browser tab. Nothing is uploaded, logged, or stored on a server — close the tab and it's gone.
Behind the Scenes: The Processing Logic
This tool processes everything client-side, inside your browser window, using native browser string and encoding APIs (no external conversion service is ever contacted). Client-side execution ensuring text and files never touch an external server Nothing is sent to a server, so there's no upload delay and no privacy trade-off.