UnlimitedConvert
Base64 Decode
Paste a Base64 string to read it as text. Standard and URL-safe Base64 both work, with or without = padding.
Runs in your browser. Nothing you type or drop here is sent anywhere.
About Base64 Decode
Base64 strings are made of letters, digits, + and / (or - and _ in URL-safe Base64), often ending in = or ==. Decoding turns them back into the original text or data.
If the decoded result is a file (an image, a PDF, a ZIP), use the download button to save it instead of reading it as text.
Frequently asked questions
Why does my decoded text look like random symbols?
The Base64 probably contains a file (like an image or PDF), not text. Use “Download as file” to save it, or Base64 to Image for pictures.
What is URL-safe Base64?
A variant that uses - and _ instead of + and /, often without = padding. This tool detects and decodes it automatically.
Is my data sent anywhere?
No. Decoding runs entirely in your browser.