Safely encode text strings or binary files into Base64 format for web transmission.
Encode plain text into Base64 format safely.
The Base64 Encoder takes any plain text string (including Unicode and emojis) and safely translates it into a Base64 string.
Hello WorldSGVsbG8gV29ybGQ=Runs instantly on your local device.
No files are ever stored or uploaded.
Works perfectly on any screen size.
Delivers professional-grade output.
Use it on Chrome, Safari, or Edge.
Unlimited usage with no hidden fees.
Get results in seconds with our streamlined, browser-native process.
Type raw text into the input field or drag and drop a specific binary file into the workspace.
Choose whether to output raw string data or auto-format the result as a web-ready Data URI.
The engine instantly maps the input bytes to the safe ASCII alphabet in real-time.
Copy the resulting Base64 string directly to your clipboard for immediate deployment.
Designed to save time, protect your privacy, and deliver professional-grade results every time.
Transforms volatile data into a safe 64-character alphabet, preventing transmission corruption across legacy protocols.
Automatically prefixes file conversions with the correct MIME type formatting, making them instantly usable in HTML or CSS.
Flawlessly handles modern multi-byte characters, ensuring emojis and international alphabets encode without breaking.
Processes all string manipulation directly in the DOM, maintaining strict confidentiality for your API keys and tokens.
See how different professionals leverage this tool in their daily workflows.
Convert small SVG icons or background patterns into Base64 to embed them directly into stylesheets, reducing HTTP requests.
Encode client credentials safely to format authorization headers required by OAuth or Basic Auth implementations.
Package binary assets like uploaded user avatars into a safe string format for transmission within a strict JSON architecture.
Embed essential structural images directly into email templates to bypass external image blocking mechanisms in mail clients.
Why thousands choose our platform over traditional software.
Everything you need to know about this tool.
No, Base64 is strictly an encoding standard, not encryption. It provides zero cryptographic security and is solely designed to ensure data transport integrity. Anyone can easily decode a Base64 string.
Yes, the tool accepts file drops. It reads the raw binary data of the file and outputs the corresponding Base64 string, often formatting it automatically as a ready-to-use Data URI.
The mathematics of Base64 dictate that every 3 bytes of raw binary data require 4 bytes of ASCII text to represent. Consequently, the encoded output will always be approximately 33% larger than the source.
The encoder natively handles UTF-8 strings. It safely converts complex pictographs and multi-byte linguistic characters into proper binary buffers before executing the Base64 translation.
Because the conversion occurs locally in your device's RAM, the theoretical limit is your browser's memory cap. Practically, text strings and files up to 50MB process rapidly and reliably.
Absolutely. You can format your string as 'username:password' and encode it here to generate the exact string required for standard HTTP Authorization headers.
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