Convert images to Base64 data URIs or decode Base64 strings back into downloadable images. Perfect for embedding images in HTML, CSS, or JSON. All client-side.
Drop image here or click to browse
TooliFyra's Base64 image encoder online tool converts images to Base64 data URIs and decodes Base64 strings back to downloadable images. Whether you need to embed images directly in HTML, CSS, or JSON, or decode a Base64 string you received, this free online tool handles it all client-side — no uploads, no server processing.
The Base64 image encoder online supports JPG, PNG, GIF, WebP, and SVG formats. Preview encoded images, copy the Base64 string to clipboard, or decode and download the result as a PNG file. Everything runs in your browser for complete privacy.
Encode or decode images in just a few steps:
Our Base64 image encoder online runs entirely client-side, meaning your images and data never leave your device. This is critical for developers working with sensitive assets or embedding images in inline styles and email templates. The tool shows encoding size and compression ratio so you can make informed decisions about when Base64 encoding is appropriate.
Web Developers: Embed small images, icons, and logos directly in HTML or CSS to reduce HTTP requests.
Email Template Designers: Inline images as Base64 data URIs for email clients that block external images.
API & JSON Work: Encode images as Base64 strings for传输 in JSON payloads and API requests.
Frontend Debugging: Decode Base64 strings received from APIs or inspect embedded image data.
TooliFyra's Base64 image encoder online is completely free with no registration, no watermarks, and no file size restrictions. Your images stay private because encoding and decoding happen directly in your browser. We keep essential developer tools free and accessible to everyone.
A Base64 image encoder online is a web tool that converts image files into Base64-encoded data URI strings and can decode them back. TooliFyra's version runs entirely in your browser for privacy.
A data URI embeds file content directly in the URL using Base64 encoding, like data:image/png;base64,iVBOR.... This lets you inline images in HTML, CSS, or JSON without external file references.
No. The Base64 image encoder online processes everything locally in your browser. Your images never leave your device, ensuring complete privacy and security.
The tool supports JPG, PNG, GIF, WebP, and SVG for encoding. Decoded images can be downloaded as PNG files.