Input and result
Use TEXT input to produce TEXT. Decode valid Base64 back into readable UTF-8 text locally. Inspect, copy or download the decoded result while keeping the input on your device.
All toolsBase64 Decode · Free online tool
Base64 Decode online
Decode valid Base64 back into readable UTF-8 text locally. Inspect, copy or download the decoded result while keeping the input on your device.
Local processingNo uploadNo watermark
Browser processing ready
Three simple steps
How to use the Base64 Decode tool
No software, signup or hand-holding required.
01
Enter your data
Paste the text or structured data you want to process.
02
Adjust and process
Choose useful settings, then let your browser create the result.
03
Download instantly
Review the output and save one file or the complete batch.
What to expect
A focused Base64 Decode workflow
Practical limitation
The current workspace accepts up to 1 file, with a 100 MB limit per file.
Common questions
Good to know
Answers specific to this tool and its current capabilities.
What kind of Base64 can this decoder read?+
It decodes Base64 whose underlying bytes form valid UTF-8 text.
Why does a Base64 string fail to decode?+
The input may contain invalid characters, incorrect padding or binary data that is not UTF-8 text.
Does decoding Base64 verify that the content is safe?+
No. Decoding reveals the text but does not validate links, scripts or other embedded content.