Base64 Encode Decode Online
Encode any text to Base64 or decode Base64 strings back to plain text. Full UTF-8 support, instant results, and everything runs locally in your browser.
Open Base64 ToolWhat Is Base64 Encoding?
Base64 is a standard encoding that converts binary data into a safe ASCII text representation. Developers use it constantly to embed images in CSS, send binary data in JSON APIs, encode email attachments, and pass data through URL parameters.
- Encode plain text or binary data to Base64
- Decode Base64 strings back to readable text
- Full UTF-8 support including multi-byte characters
- One-click copy of encoded/decoded output
Why ToolPilot?
Browser-Only
Your data never leaves your device. Encoding and decoding happen locally in JavaScript.
Instant Results
Real-time conversion as you type. No server round-trips needed.
No Sign-Up
No account, no email, no paywall. Just open and use.
50+ Tools
Base64 is just one of 50+ developer and utility tools on ToolPilot.
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Frequently Asked Questions
- What is Base64 encoding?
- Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It is commonly used to embed data in URLs, emails, and JSON payloads.
- Does this tool handle UTF-8 characters?
- Yes. The encoder properly handles multi-byte UTF-8 characters, including accented letters, CJK characters, and emoji.
- Is Base64 encryption?
- No. Base64 is an encoding, not encryption. It is easily reversible and provides no security. Use it for data transport, not for protecting sensitive information.