About This Tool
What is Codec (Encoder / Decoder)?
A tool for encoding and decoding text using various formats including Base64, Base32, Hex, and ASCII85. Commonly used in web development, API communication, and data transmission. All conversions happen in your browser, so your data never leaves your device.
How to Use
- Select the encoding format (Base64, Base64URL, Base32, Hex, ASCII85) from the tabs.
- Enter the text you want to convert in the input area.
- Click 'Encode' or 'Decode' to perform the conversion.
- Use the copy button to copy the result to your clipboard.
Key Features
- Supports 5 encoding formats: Base64, Base64URL, Base32, Hex, ASCII85
- Real-time encoding and decoding
- One-click result copying
- Browser-based processing for privacy protection
Tips
- Base64 is most commonly used for email attachments and API data transmission.
- Base64URL replaces + and / with - and _ for safe use in URLs.
- Hex encoding is widely used for color codes, MAC addresses, and binary data representation.
Codec (Encoder / Decoder)
Encode and decode text in Base64, Base64URL, Base32, Hex, and ASCII85
Frequently Asked Questions
What is the difference between Base64 and Base64URL?▼
Standard Base64 uses the characters A-Z, a-z, 0-9, +, and /. Base64URL replaces + with - and / with _ to make the encoded string safe for use in URLs and filenames, where + and / have special meanings. Base64URL also omits the = padding character. Use Base64URL when the encoded data will be included in URLs or HTTP headers.
Is Base64 encoding the same as encryption?▼
No. Base64 is an encoding scheme, not encryption. It converts binary data to text format for safe transmission but provides zero security — anyone can decode it. Never use Base64 to protect sensitive data. For actual data protection, use proper encryption algorithms like AES or RSA.
When should I use Hex encoding vs Base64?▼
Hex (hexadecimal) encoding represents each byte as two characters (0-9, A-F), making the output exactly twice the input size. Base64 is more space-efficient, producing output about 33% larger than the input. Use Hex for debugging, color codes, and when human readability of individual bytes matters. Use Base64 for data transmission where smaller size is preferred.
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