Encoding & Decoding Developer Tools

Convert and decode strings across Base64, URL percent-encoding, Hexadecimal, HTML entities, Unicode escapes, and inspect unsigned JWT tokens.

Encoding & Decoding

Base64 Encoder

Encode plain text or binary strings into safe Base64 representation.

Encoding & Decoding

Base64 Decoder

Decode Base64 encoded strings back into plain readable text.

Encoding & Decoding

Base64 Encoder & Decoder

Encode text to Base64 and decode Base64 strings back to UTF-8 text seamlessly in one dual-mode tool.

Encoding & Decoding

JWT Decoder

Decode and inspect JSON Web Token headers, payloads, signatures, and expiration status.

Encoding & Decoding

URL Encoder

Encode special query parameter characters into percent-encoded URL values.

Encoding & Decoding

URL Decoder

Decode percent-encoded URI strings back into standard readable text.

Encoding & Decoding

HTML Entity Encoder

Convert sensitive HTML characters like <, >, &, and " into HTML entities.

Encoding & Decoding

HTML Entity Decoder

Decode HTML entity strings (like &lt; or &amp;) into raw characters.

Encoding & Decoding

Hex String Converter

Convert text strings to hexadecimal byte values and vice versa.

Encoding & Decoding Developer Guide

Encoding & Decoding tools help developers build, test, and debug software faster. Having access to fast, private, client-side tools saves time and prevents common errors in your daily workflow.

1. Understanding Encoding & Decoding

Encode and decode Base64, URL, HTML entities, Hex, Unicode, and JWT tokens. Using standard tools helps teams maintain consistent code, format data properly, and test edge cases before deployment.

2. 100% In-Browser Privacy

All tools in this section run entirely inside your web browser. Your inputs and code snippets are never sent across the network or saved on remote servers.

3. Daily Workflow Tips

How to get the most out of these tools: - Bookmark tools you use daily for quick access. - Use one-click copy and download buttons to move results into your editor. - Test your inputs with sample data to verify formatting before using in production.

Engineering Best Practices & Guidelines

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Double-check your input settings before running batch conversions.

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Use keyboard shortcuts and quick-copy buttons for faster workflow.

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Keep all sensitive data in your browser for complete privacy.

Frequently Asked Questions

Q1. Are encoding & decoding tools free?

Yes. All tools on our platform are 100% free with no sign-up or usage limits.

Q2. Is my data kept private?

Yes. Everything runs locally in your browser. No data is stored on or sent to remote servers.