Base64 Encoder & Decoder
Easily encode text or files to Base64 and decode Base64 strings online with our free, secure Base64 Encoder & Decoder. Perfect for developers handling API data, debugging web responses, or preparing encoded content. All processing is local and private—no uploads or data storage.
About This Tool
Learn what makes this tool special
Key Features
What makes this tool special
- Encode text and strings to Base64 format
- Decode Base64 back to original text
- Fast browser-native encoding/decoding
- No file size limits or content restrictions
- 100% browser-based processing - no uploads required
- Drag-and-drop interface for easy input
- Instant processing with real-time results
- Mobile-friendly responsive design
- Secure local processing with complete privacy
- Copy results to clipboard with one click
- Download encoded/decoded results as files
- Support for data URIs and web standards
- Batch processing for multiple text inputs
- Unicode and special character support
- URL-safe Base64 encoding options
- Detailed encoding statistics and information
Quick Guide
Master this tool in seconds
- 1Enter or paste your text in the input area
- 2Choose 'Encode to Base64' or 'Decode from Base64'
- 3Click the process button to start conversion
- 4Copy the result to clipboard or download as file
- 5Optionally reverse the process with the same text
- 6Use drag-and-drop for file-based text input
Common Questions
Everything you need to know
Q.What is Base64 encoding used for?
Base64 encodes binary data into text format for safe transport in JSON, URLs, HTML, email attachments, and APIs.
Q.Is Base64 encryption or encoding?
Base64 is encoding, not encryption. It makes binary data safe for text transport but doesn't provide security.
Q.Does Base64 change the data size?
Yes, Base64 encoding increases the data size by approximately 33% due to the encoding overhead.
Q.Can I use this tool on mobile devices?
Yes, our responsive design works perfectly on phones, tablets, and all mobile devices.
Q.Is my data stored or uploaded?
No, all processing happens locally in your browser. Your data never leaves your device.
Q.What characters can be encoded?
All text including Unicode, special characters, emojis, and binary data converted to text.
Q.Is there a limit to text size?
No limits! Process text of any length with our browser-based processing.
Q.Does it support URL-safe Base64?
Yes, includes options for standard and URL-safe Base64 encoding variants.
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