Base64 Decode Online
Decode Base64 strings to text instantly. Also decode Base64 to files. No login required — everything runs in your browser.
Base64 Input
Decoded Text
Why Decode Base64?
Debug API Responses
Many APIs return Base64-encoded data in their responses. Decode it to inspect the actual content — whether it's authentication tokens, embedded images, or data payloads.
Extract Embedded Data
HTML, CSS, and JSON files often embed data as Base64 strings. Decode them to view the original content, whether it's an image, font, or binary data.
Read Encoded Attachments
Email attachments and some file formats encode binary data as Base64. Decode the Base64 string to recover the original file — images, PDFs, and other documents.
Frequently Asked Questions
How do I decode Base64?
Paste your Base64 encoded string into the input field and click Decode. The decoded text appears instantly in the output panel. You can also decode Base64 that represents files like images or PDFs.
What can Base64 encode?
Base64 can encode any binary data including text, images, audio, video, and files. It converts binary data into a text representation using 64 ASCII characters, making it safe to transmit over text-based protocols like email and HTTP.
Is Base64 the same as encryption?
No. Base64 is encoding, not encryption. It converts data format for transmission but provides zero security. Anyone can decode Base64 — it's easily reversible. Never use Base64 as a substitute for encryption when you need data security.
Is my data sent to a server?
No. All encoding and decoding happens in your browser. Your data is never transmitted anywhere.