Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to text. Supports UTF-8 and binary data.
How to Use Base64 Encode/Decode
- 1Paste or type text into the input field.
- 2Select "Encode" to convert text to Base64 or "Decode" to convert Base64 back to text.
- 3The result appears instantly in the output field.
- 4Click "Copy" to copy the result to your clipboard.
Zenovay
Track your website performance
Real-time analytics, session replay, heatmaps, and AI insights. 2-minute setup, privacy-first.
Related Tools
JSON Formatter & ValidatorFormat, validate, and beautify JSON data with syntax highlighting and error detection.
JWT DecoderDecode and inspect JWT tokens. View header, payload, and verify signatures.
URL Encode/DecodeEncode or decode URL components. Handle special characters, query strings, and full URLs.
Regex TesterTest regular expressions with real-time matching, capturing groups, and explanation.
Frequently Asked Questions
What is Base64?▾
Base64 is an encoding scheme that converts binary data to ASCII text. It is commonly used to embed images in HTML/CSS, encode email attachments, and transmit binary data over text-based protocols.
Is my data secure?▾
Yes, all encoding and decoding happens in your browser. No data is sent to any server.
Does Base64 support Unicode/UTF-8?▾
Yes, this tool properly handles UTF-8 text including accented characters, emojis, and CJK characters.
When should I use Base64 encoding?▾
Common use cases include embedding images in CSS or HTML using data URIs, encoding binary data for JSON payloads, preparing email attachments per MIME standards, and transmitting data through URL-safe channels.
Does Base64 encoding encrypt my data?▾
No. Base64 is an encoding scheme, not encryption. Anyone can decode Base64 text back to its original form. If you need to protect sensitive data, use a proper encryption tool like AES.
What is the maximum input size?▾
The tool is limited only by your browser's available memory. Most modern browsers handle several megabytes of text without issues, which is more than enough for typical use cases.
Can I copy the encoded or decoded result?▾
Yes. Both the plain text and Base64 fields are fully editable and selectable. You can use the standard copy shortcut or select-all to grab the content.