Yes. All conversions run 100% locally inside your web browser sandbox memory using standard HTML5 Canvas and FileReader APIs. No images, files, or Base64 strings are transmitted or stored on external servers.

A Data URI (Uniform Resource Identifier) is a scheme that allows you to embed files directly into HTML or CSS pages as base64-encoded strings (e.g., src="data:image/png;base64,..."). Embedding small images directly eliminates extra HTTP network requests and accelerates initial page load times.

Base64 encoding increases file size payload by approximately 33% (8 bits of binary data encoded into 6-bit Base64 ASCII characters). For this reason, Base64 embedding is ideal for small UI icons, favicons, or single SVGs under 100KB.

Our tool supports PNG, JPEG, SVG, WebP, GIF, BMP, and ICO image formats for both encoding to Data URIs/code snippets and decoding Base64 strings back to downloadable image files with automatic magic-byte MIME type sniffing.

Yes! Switch to the 'CSS Snippet' or 'Favicon Link' output tab after encoding your image to copy ready-to-paste code properties (e.g. background-image: url("data:image/png;base64,...") or <link rel="icon" href="data:image/png;base64,..." />).

When uploading photos or raster images, our built-in HTML5 Canvas dimension resizer lets you scale images down to 75%, 50%, 25%, or 10% of their original dimensions before encoding. Because pixel area scales quadratically, a 50% scale reduction reduces data size and base64 length by approximately 75%.

Click the '💻 API Code' button (or press Alt+S) in the hero action toolbar. You can select among 9 programming languages (TypeScript/JS, Python 3, Go, Rust, Java, C#, Bash CLI, cURL) to view and copy zero-dependency scripts for encoding and decoding images.

Yes. Data URIs are supported across all modern web browsers (Chrome, Firefox, Safari, Edge, Mobile Safari) and standard webview environments. They are also widely utilized in HTML email newsletters to prevent external image blocking.

Switch to 'Base64 to Image (Decode)' mode (or press Alt+S), paste your Base64 string or Data URI into the input editor, and the image renders instantly in the preview canvas. You can inspect its dimensions and download the binary file with its inferred extension.

Press '/' to select an image file or focus the decode textarea, 'Ctrl+Enter' (or 'Cmd+Enter') to copy the active Base64 snippet or download the decoded image, 'Alt+P' for DevToys Smart Clipboard Auto-Detect, 'Alt+D' to star this tool, 'Alt+V' to toggle between 2-column Split Studio and Stacked layout, 'Alt+S' for Developer API Code Studio, 'Alt+R' for Surprise Me random preset, 'Alt+K' or '?' for the Shortcuts Guide, and 'Escape' to dismiss dialogs or reset workspace.

Yes! Open Developer API (Alt+S) to view copy-ready code snippets and download standalone script files (.ts, .js, .py, .go, .rs, .java, .cs, .sh) across 9 environments with full client-side and server-side Base64 handling.