Raw Base64 vs data URI
Raw Base64 is only the encoded bytes. A data URI adds the MIME type and prefix that browsers need for src attributes and CSS URLs.
Upload an image and convert it into raw Base64, a data URI, or ready-to-use HTML/CSS snippets locally in your browser.
Choose a PNG, JPEG, WebP, GIF, or SVG image from your device.
Output appears after upload.
File details, Base64 length, data URI snippets, and copy actions stay in this browser session.Upload an image to generate Base64 outputs.
No encoded image yet.
Raw Base64, data URI, HTML, and CSS snippets will be shown here after a local conversion.Convert small images into portable strings for prototypes, emails, fixtures, and inline CSS while keeping size tradeoffs visible.
Raw Base64 is only the encoded bytes. A data URI adds the MIME type and prefix that browsers need for src attributes and CSS URLs.
The generated snippets wrap the data URI in an <img> tag or background-image declaration so you can paste it into a quick prototype.
Base64 output is typically larger than the original binary file. It can also prevent separate browser caching when embedded directly in HTML or CSS.
Avoid Base64 for large photos, reusable assets, and frequently changing files. Linked image files usually cache better and keep source files easier to review.
The selected file is read with browser FileReader and Blob APIs. The page does not upload files, fetch remote URLs, or call an external image service.
SVG files are encoded safely as text data. The converter avoids rendering untrusted SVG markup directly in the Angular page preview.
No. File selection, drag/drop, encoding, preview, copy, and download happen locally in your browser.
The converter accepts PNG, JPEG, WebP, GIF, and SVG files that the browser can read through the file picker or drag/drop workflow.
Raw Base64 is the encoded content only. A data URI includes the media type and data: prefix so HTML and CSS can identify the image.
Base64 represents binary bytes as text characters, which usually adds about 33% before considering any data URI prefix or surrounding HTML and CSS code.
Use them sparingly for tiny icons, self-contained demos, or fixtures. Normal image files are often better for caching, compression, accessibility reviews, and maintainability.
SVG can contain active markup. The converter still reads and encodes SVG files, but it avoids directly rendering untrusted SVG content in the page preview.