Base64 Encoder & Decoder
Convert text to Base64 or decode Base64 to plain text. Ideal for developers and marketers working with API tokens, HTML, or URI-safe strings.
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ToolMateX’s Base64 Encoder & Decoder
ToolMateX’s Base64 Encoder & Decoder is a free online utility that helps developers, marketers, and data handlers encode or decode base64 strings directly in the browser. Whether you’re working with data URIs, API tokens, or HTML-safe strings, this tool makes the conversion seamless and fast.
Key Features
- Encode text into base64 instantly
- Decode base64 back to readable plain text
- Toggle URI-safe base64 for URL usage
- Copy and paste support for both inputs
- 100% client-side processing — privacy ensured
- Supports multi-line inputs and long strings
- Compatible with JavaScript, HTML, and CSS usage
Use Cases
- Convert JSON or HTML content to base64
- Prepare API tokens or authentication payloads
- Embed small images as base64 in emails or stylesheets
- Encode text for URL parameters
- Learn or test base64 functionality interactively
Common Base64 Use Cases
| Use Case | Description |
|---|---|
Embedding Images in HTML Emails | Converts image binary to base64 so it can be embedded inline in HTML |
URL-safe Tokens | Prevents special characters like + and / from breaking URLs |
API Authentication | Encodes credentials in Authorization: Basic headers |
Data URI Scheme | Base64-encodes media for embedding directly in CSS or HTML |
Frequently Asked Questions (FAQs)
Why Use ToolMateX
Tired of bloated tool websites with 10 ads per click? This platform is built for speed, simplicity, and reliability. Whether you're debugging JSON or testing colors, we’ve got your back.
Free to Use, Forever
All tools run right in your browser, fast, reliable, and available whenever you need them. No ads, and nothing to install.
Works Offline (Most of Them)
Most of my tools work directly in your browser without needing a server. Perfect for fast workflows (even if you’re offline).
Made by a 1-Person Team
Made by someone who actually uses these tools daily. It’s fast, clean, and made with your workflow in mind, not corporate KPIs.