Base64 Encoder / Decoder

More actions

Input

Uses UTF-8 in this browser. Base64 is not encryption. Text fields may normalize CRLF to LF. Limits: 8 MiB of text to encode; 12,000,000 Base64 characters and 8 MiB decoded. Binary signatures do not validate file integrity.

Output

Ready0 lines0 bytesUTF-8

Status: Ready
Input size: 82 B
Output size: 0 B
Time: -
Format: Base64

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Practical usage guide

A practical workflow for Base64 Encoder / Decoder

Encode UTF-8 text and decode Base64 values for API payloads, sample credentials, attachments, and integration testing.

1. Prepare

Choose text or file input and the encoding direction. Text SAP encodes as U0FQ; file workflows also support Data URI output.

2. Review

Decode the result and compare it with the original. For Data URIs, check the MIME type and prefix as well as the Base64 content.

3. Apply

Base64 is reversible encoding, not encryption. Confirm the receiver accepts the selected MIME type and representation before using the encoded file.

Verification before operational use

Use a representative case with the inputs needed to reproduce it.
Confirm the result in the authorized target environment when runtime versions, namespaces, extensions, permissions or system configuration can change the outcome.
Record the source, assumptions, tool settings and expected result so another reviewer can reproduce the check and distinguish verified facts from recommendations.