Complete tool guide
What is the Base64 Encoder & Decoder?
Encode plain text to Base64 or decode Base64 back to text. Convert text to Base64 or decode a Base64 value back to text. Base64 is a transport encoding, not a way to protect confidential information.
How to use the Base64 Encoder & Decoder step by step
- Choose whether you want to encode plain text or decode an existing Base64 value.
- Paste the input using the expected text/Base64 format and run the selected operation.
- For a round-trip check, encode a harmless sample such as Hello and decode the result back to the original text.
- Do not use Base64 as encryption or as password protection; anyone can decode a Base64 string.
Example and practical use cases
The text 'Hello' encodes to 'SGVsbG8=' in Base64 and decodes back to the original text.
Accuracy, assumptions and limitations
Base64 is a reversible encoding, not encryption. Anyone with the encoded string can decode it without a secret key.
Tips for a reliable workflow
Choose encode or decode, paste the input and compare the decoded output with the original sample.
Common mistakes to avoid
Do not store passwords or secrets in Base64 expecting them to be protected.
Privacy and safe use
Use only the information needed for the task. Do not enter passwords, authentication codes, bank-card details, private keys or other secrets. For files or business records, review the site privacy policy and keep an untouched original until you have checked the output.
When a result is important, keep a source copy and retain any supporting records required by your organisation. If you discover an error, return to the original input, correct it and repeat the process rather than trying to patch an unreliable output.
Frequently asked questions about Base64 Encoder & Decoder
Is Base64 encryption?
No. Base64 is a reversible encoding that changes how bytes are represented. It does not protect information with a secret key.
Can I decode a Base64 string?
Yes. Choose decode mode and provide valid Base64 input. The decoded bytes must also match the expected text encoding.
Is it safe to encode passwords in Base64?
No. Anyone can decode Base64. Never use it as password protection or secret storage.
Related tools and further reading
You may also find these related utilities useful for the next step in your workflow. Choose the tool that matches the task rather than repeating the same operation unnecessarily.
For the best result, read the instructions on the tool page, test a small input and verify the final output before using it in an important task.