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Encode and Decode Text and Files to Base64 Format
A powerful tool for encoding and decoding Base64 strings with support for text input, file uploads, and automatic history tracking of your recent operations.
The Base64 Encoder/Decoder tool allows you to convert text and files to Base64 format and vice versa. Base64 encoding is commonly used for data transmission, storing data in databases, and embedding binary data in text-based formats like JSON and XML.
To encode text to Base64, select the Encode mode and enter your text in the input field. The tool will automatically handle Unicode characters properly.
Hello, World!SGVsbG8sIFdvcmxkIQ==To decode a Base64 string, switch to Decode mode and paste your Base64 content. The tool validates the input and displays the decoded text.
SGVsbG8sIFdvcmxkIQ==Hello, World!Note: The tool validates Base64 input before decoding. If the input is not valid Base64, you'll see a validation error.
The tool supports file uploads via drag and drop or file picker. You can encode entire files to Base64, which is useful for embedding images, documents, or other binary data in text-based formats.
Tip: Base64-encoded files are approximately 33% larger than the original binary data. Use this for embedding small files in code or data URIs.
The tool automatically saves your last 10 encoding and decoding operations in the history sidebar. This allows you to quickly revisit previous conversions.
All encoding and decoding operations are saved automatically, making it easy to track your work.
Each history item is clearly labeled with its operation type for easy identification.
The Quick Actions panel provides convenient shortcuts for common tasks.
Pre-fills the input with "Hello, World!" for quick encoding testing.
Pre-fills the input with "SGVsbG8sIFdvcmxkIQ==" for quick decoding testing.
Removes all entries from the history sidebar.
Resets the input and output fields, and clears file information.
Once you have encoded or decoded your content, several options are available for working with the output.
Copies the output to your clipboard with one click. Shows a toast notification with character count.
Downloads the output as a .txt file with a timestamped filename.
Character count is displayed below the output for reference.
Speed up your workflow with these keyboard shortcuts:
| Action | Shortcut |
|---|---|
| Process (Encode/Decode) | Ctrl / Cmd + Enter |
| Copy Output | Ctrl / Cmd + C |
| Clear All | Ctrl / Cmd + L |
| Switch to Encode Mode | Ctrl / Cmd + 1 |
| Switch to Decode Mode | Ctrl / Cmd + 2 |
Encode authentication tokens, API keys, or binary data for API requests. Many APIs require Base64-encoded credentials.
Create data URLs for embedding images directly in HTML, CSS, or JavaScript files using Base64-encoded image data.
Embed binary data like images or files in JSON or XML by encoding them to Base64 first.
Email attachments are encoded in Base64 format. Use this tool to decode email attachments or prepare files for email.
Store binary certificates, keys, or other binary data in configuration files by converting them to Base64.
Store binary files in text-based database fields by encoding them to Base64 first.