Convert PNG, JPG, WebP, SVG, and GIF images into Base64 Data URIs, HTML image tags, and CSS background code. Decode raw Base64 strings back into downloadable images.
Generate clean Base64 Data URIs, HTML image tags, and CSS background-image declarations with one click.
Easily encode images into Base64 Data URIs for single-file HTML and CSS embedding, or paste raw Base64 strings to preview and download them as standard images.
Fast and easy from start to finish
Choose 'Image to Base64' to encode, or 'Base64 to Image' to decode.
Drop an image file or paste a Base64 string into the input area.
Copy your desired code snippet or download the decoded image file.
What you can do with this tool
Instant conversion from PNG, JPG, WebP, SVG, and GIF to Base64 strings.
Generates 4 ready-to-copy snippets: Data URI, HTML <img> tag, CSS background-image, and raw Base64.
Reverse decoder: paste raw Base64 or Data URIs to preview and download as images.
Calculates payload byte size and compression overhead indicators.
Completely private execution inside your browser.
Unlock batch scale, higher resolution, and expanded limits
Convert entire icon folders into clean Data URIs for web stylesheets.
Create bundled CSS background code to speed up website load times.
Analyze payload size overhead and compression ratios.
Everyday walkthroughs and starter ideas for Base64 Image Converter & Decoder
Encode a 2KB SVG logo into a CSS background-image property.
Decode a base64 string from an API response to verify the image content.
File requirements, capabilities, and system limits
Embedding very large multi-megabyte photos as Base64 can slow down HTML rendering and should be avoided.
Helpful definitions of features and parameters
A Uniform Resource Identifier scheme that provides a way to include data in-line in web pages as if they were external resources.
A binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-64 representation.
How creators, students, and professionals use Base64 Image Converter & Decoder
Inlining small icons and graphics directly into HTML and CSS stylesheets
Embedding logos inside HTML email templates to avoid external image blocking
Debugging data strings received from APIs and databases
Answers to common questions about Base64 Image Converter & Decoder
Base64 is ideal for small icons, logos, and email templates where eliminating extra HTTP network requests improves load times and guarantees self-contained assets.
Yes, Base64 encoding adds approximately 33% overhead compared to the raw binary file size.
Popular companion tools to edit and enhance your projects