Nothing you open here is ever uploaded

Decode Base64 to text

Paste Base64 and read what is inside. Line breaks and stray spaces are ignored, so you can paste straight out of a header or a config file.

This page loads no libraries at all — the work is done by the browser itself. Your file is read on your own machine and never sent anywhere — open your browser's network tab and watch while you use it.

Questions

It says my input is invalid — why?

Something is not valid Base64: a truncated string, or a URL-safe variant using - and _ instead of + and /.

Can I decode a Base64 image?

A data URL of an image decodes to binary, which will not read as text. The image converter is the tool for that.

Other text & code tools

Everything here is free and works the same way — in your browser.

Word counterWords, characters, sentences and reading time, as you type. Case converterUPPER, lower, Title, Sentence, snake, kebab and camel. JSON formatterTidy up JSON, and find out exactly where it breaks. JSON minifierStrip the whitespace and see exactly what you saved. Base64 encodeEncode text — accents and emoji survive the trip. URL encoderPercent encoding, both directions.