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Best Encoding & Decoding Tools — Base64, URL, Hex, and More

SWE Helper offers a complete suite of encoding and decoding tools, all running 100% in your browser. Whether you need to encode text to Base64, percent-encode URLs, convert hex, or handle binary data — we've got you covered.

Tools Compared

🔄

Base64 Encoder / Decoder

Encoding & Decoding

Encode text to Base64 or decode Base64 to text. Supports UTF-8 and binary data.

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🔗

URL Encoder / Decoder

Encoding & Decoding

Encode and decode URL components. Supports encodeURIComponent and encodeURI modes.

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🔢

Hex ↔ Text Converter

Encoding & Decoding

Convert text to hexadecimal byte representation and hex strings back to readable text.

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💻

Binary ↔ Text Converter

Encoding & Decoding

Convert text to 8-bit binary representation and decode binary strings back to text.

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📝

HTML Entity Encoder / Decoder

Encoding & Decoding

Convert HTML special characters to entities and back. Prevent XSS and display code safely.

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🌐

Unicode Escape / Unescape

Encoding & Decoding

Convert text to Unicode escape sequences (\uXXXX) and back. Inspect character code points.

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Quick Comparison

Feature🔄 Base64 Encoder / Decoder🔗 URL Encoder / Decoder🔢 Hex ↔ Text Converter💻 Binary ↔ Text Converter📝 HTML Entity Encoder / Decoder🌐 Unicode Escape / Unescape
Free✅ Yes✅ Yes✅ Yes✅ Yes✅ Yes✅ Yes
Browser-based✅ Yes✅ Yes✅ Yes✅ Yes✅ Yes✅ Yes
No signup✅ Yes✅ Yes✅ Yes✅ Yes✅ Yes✅ Yes
Data privacy✅ 100% local✅ 100% local✅ 100% local✅ 100% local✅ 100% local✅ 100% local

❓ Frequently Asked Questions

What encoding tool should I use?

Use Base64 for binary-to-text encoding (emails, data URIs). Use URL encoder for query parameters. Use hex converter for low-level byte inspection. Use HTML entity encoder for safe HTML display.

Are these encoding tools safe to use?

Yes, all tools run entirely in your browser. Your data never leaves your device — no server processing, no data storage, no tracking.

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