Decode pasted Base64 text
Paste encoded strings from APIs, configuration files, logs, or developer tools and recover readable UTF-8 text.
Base64 utility
Online Base64 Decoder
Decode Base64 strings to plain text in your browser. No coding required. Convert Base64 encoded strings.
- Browser-based
- No upload
- Instant output
How it works
Paste Base64 text Enter an encoded string or data URL
Decode Base64 Convert to readable UTF-8
Use the result Copy or download your text
data: URLs and line breaks are OK
Readable UTF-8 text
About the Base64 Decoder
Paste a Base64 string and turn it back into readable UTF-8 text in your browser. Useful for API payloads, encoded configuration values, logs, and developer handoffs.
When Base64 decoding is useful
Base64 is a transport encoding, not encryption. Decoding recovers the original text when the payload was UTF-8 content—JSON fragments, config values, identifiers, or other strings copied from responses, webhooks, and tickets.
Need the reverse path? Use the Base64 Encoder. For percent-encoded query values use the URL Decoder. Image payloads belong on Image to Base64 or Base64 to Image. Token-shaped strings often pair with the JWT Decoder / Generator.
Decode images separately
Image payloads belong on Base64 to Image (preview and download). Encode a file on Image to Base64.
Copy or download decoded text
Copy the result directly or save decoded text as a .txt file for further work.
Continue with related encoding tools
Re-encode text with the Base64 Encoder, decode percent-encoded URLs with the URL Decoder, or inspect JWT payloads with the JWT Decoder / Generator.