मुफ़्त Base64 एनकोडर और डीकोडर

Base64 converts binary data to a text-safe format using only 64 printable ASCII characters (A-Z, a-z, 0-9, +, /). It's used to embed images in CSS/HTML, encode email attachments, and transmit binary data over text-based APIs.

No. Base64 is encoding, not encryption — it changes the format without adding security. Anyone can decode Base64 trivially. Never use Base64 to protect sensitive data; use real encryption (AES, TLS) instead.

Base64-encoded data is approximately 33% larger than the original. Every 3 bytes of input becomes 4 ASCII characters. A 1 MB image becomes ~1.37 MB as Base64.

Standard Base64 uses + and / which are special characters in URLs. URL-safe Base64 replaces + with − and / with _ making it safe for use in URL parameters and file names without percent-encoding.

Yes. Upload an image and copy the Base64 string, then use it as: background-image: url("data:image/png;base64,YOUR_BASE64_HERE"). This embeds the image directly in CSS, reducing HTTP requests for small icons.

Yes, the Base64 एनकोडर on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.

अपने ब्राउज़र में टेक्स्ट को Base64 में एनकोड करें और Base64 स्ट्रिंग्स डीकोड करें। No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.

No installation needed. The Base64 एनकोडर runs entirely in your web browser on any device — desktop, tablet, or mobile.

Completely safe. The Base64 एनकोडर processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.

After the page loads for the first time, the Base64 एनकोडर works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.

Yes. The Base64 एनकोडर is a utility tool and its output carries no licensing restrictions. You are free to use results in any project, commercial or personal.

Yes. The Base64 एनकोडर is built to comply with the relevant industry standard or specification for this utility type. If you encounter an unexpected result, verify your input against the specification — edge cases outside the standard may produce undefined behaviour.

Yes. The Base64 एनकोडर is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.

Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.