What this tool does
Classic Base64 encoder/decoder for safely transporting binary data in text-only channels.
This page focuses on practical, step‑by‑step usage for **Base64 Encoder / Decoder**, with clear examples and common pitfalls.
When you should use it
Use it for email/HTTP payloads, config files, and quick debugging of encoded blobs.
How to use
- Paste input text.
- Click Encode or Decode.
- Optionally verify by decoding back to the original.
Quick example
Example: Encode JSON to Base64 for a Basic auth-style header (then decode to confirm).
Notes
Base64 is not encryption—treat it as an encoding, not a security layer.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings instantly.
About Base64 Encoding
Base64 is a binary-to-text encoding scheme used to represent binary data using ASCII characters.
Common Uses
- Email attachments
- Embedding images in HTML/CSS
- Data URIs
- API authentication
- Storing binary data in JSON
FAQ
What’s the difference between encoding and encryption on this page?
Encoding changes representation (for transport/compatibility). Encryption protects confidentiality with a key. Use encryption when you need secrecy.
What should I do if the input fails to decode/parse?
Start by checking for missing padding, wrong alphabet/variant, or extra whitespace. If the data looks multi-layered, try decoding step-by-step (e.g., URL decode → Base64 decode).
Is it safe to paste sensitive data here?
For best security, avoid pasting real secrets (private keys, live tokens, seed phrases). Use test data or work offline, especially for anything that could grant access or move funds.