EasyConvert / Encoding & Decoding
Base64 Decoder
Decode Base64 to readable UTF-8 text online. Validate and inspect encoded values locally in your browser.
About Base64 Decoder
Encode and decode Base64 data.
The tool is designed to process data in the browser unless the interface explicitly states that a network request is required.
How to use this tool
- Enter or select the text, base64 value you want to work with.
- Review the available settings, then run the encode action.
- Review the text, base64 output and use the copy or download action when the tool provides one.
What you can do with Base64 Encoder & Decoder
- Decode base64 string
- Encode text as base64
What this conversion does
Decode Base64 values into readable text.
Example input
SGVsbG8gRWFzeUNvbnZlcnQ=Example output
Hello EasyConvertPractical workflow
- Copy only the Base64 payload, removing surrounding quotes or a data-URL prefix when they are not part of the encoded value.
- Switch the tool to Decode, paste the value, and convert it locally in the browser.
- Check that the output is readable UTF-8 text and treat unexpected markup, commands, or credentials as untrusted data.
Common use cases
- Inspect a Base64-encoded API field, email fragment, or configuration value.
- Read the text portion of a token or diagnostic payload without sending it to a server.
- Verify that a text value was encoded correctly before storing or transmitting it.
Important notes and limitations
- Base64 is an encoding, not encryption; anyone with the value can decode it.
- This page displays decoded bytes as UTF-8 text, so images, archives, and other binary payloads will not produce a useful text result.
- Do not execute decoded scripts or trust decoded URLs automatically. Remove secrets before sharing screenshots or copied output.
Continue your workflow
- Encode UTF-8 text as Base64 — create a compatible value for the reverse workflow.
- Decode URL-escaped text — handle percent-encoded values before or after Base64 decoding.
- Inspect a JWT safely — decode token sections while keeping signature verification separate.
Frequently asked questions
Why does my decoded Base64 text look like gibberish?
If the original encoded data was a binary file (such as a PNG image, PDF, or compressed ZIP archive), decoding it as UTF-8 text will result in unreadable binary symbols.
Can this tool decode URL-safe Base64 strings (- and _ characters)?
Yes, the decoder automatically handles standard Base64 (+ / =) and URL-safe Base64 (- _) variants.
Focused guides for this tool
- Base64 Encoder — Encode plain UTF-8 text into Base64.