Encode any image as a Base64 string instantly in your browser. Get output as a Data URL, raw Base64,
HTML <img> tag, CSS
background-image, or a JSON object —
ready to copy and paste directly into your code. No uploads, no server, 100% private.
Drag & drop images here
or click to browse (up to 20 files)
JPG, PNG, WebP, GIF, SVG, AVIF, BMP and more
Base64 is a method of encoding binary data — like an image — as a plain-text
string of ASCII characters. This lets you embed an image directly inside your HTML, CSS, or JSON
without needing a separate file or making an extra HTTP request to the server. The result is a
long string that begins with
data:image/jpeg;base64,...
Absolutely. Pixel Impeccable runs entirely inside your web browser. Your images are never uploaded to any server — all encoding happens locally using the browser's built-in FileReader API. Your data stays on your device at all times, making this tool completely safe for sensitive or proprietary images.
Data URL
The complete encoded string with MIME type prefix. Paste directly as an src attribute value.
Raw Base64
Just the encoded data string, without the data: prefix. Useful for APIs and backend processing.
HTML <img> Tag
A ready-to-paste <img> element with the Base64 source, width, height, and alt attributes filled in.
CSS Background
A background-image declaration ready to paste into a CSS rule to use the image without an external file.
JSON
A structured JSON object containing the filename, MIME type, dimensions, and Base64 data — ready to use in API requests or config files.
Base64 is a method of encoding binary data (like an image file) as a plain-text string of ASCII characters. When applied to images, it lets you embed them directly inside HTML, CSS, or JSON without needing a separate image file or extra HTTP request. The result is a long string starting with data:image/jpeg;base64,...
Base64 encoding is useful when you need to embed an image directly in your code — such as small icons in HTML emails, inline images in CSS for reducing HTTP requests, image data in API payloads, or passing images between systems that only accept text. It eliminates the need for separate image files in certain workflows.
Base64 encoding increases the size of data by approximately 33%, because it converts every 3 bytes of binary data into 4 ASCII characters. To reduce the Base64 string size, enable the Re-encode Image option in the sidebar to compress your image to a lower quality JPEG or WebP before encoding.
A Data URL is the Base64-encoded image with a MIME type prefix, in the format data:[type];base64,[data]. You can use it anywhere a URL is accepted — as an src attribute in an <img> tag, in a CSS url(), or in JavaScript. The browser decodes and renders it as a normal image.
Yes. SVG files are encoded to Base64 just like any other image format. The resulting Data URL will have the type data:image/svg+xml;base64,.... Note that for SVGs, the re-encode option is skipped to preserve vector quality, and the raw file is encoded directly.
For large images, it is generally better to use regular image URLs rather than Base64 inlining, because Base64 significantly increases page payload size and prevents browser caching. Base64 is best suited for small assets like icons, logos, and decorative elements where eliminating an HTTP request provides a net performance gain.
No. Base64 is an encoding scheme, not encryption. It converts binary data to a text format using a fixed alphabet — anyone can decode a Base64 string back to its original data without a key or password. Do not use Base64 to protect sensitive information. If you need to secure image data, use proper encryption before encoding.
Pixel Impeccable supports JPG, PNG, WebP, GIF, SVG, and AVIF files. Any image your browser can display can be encoded to Base64. If you have an iPhone HEIC photo, convert it to JPG first using our free HEIC converter, then encode it here.
Yes. To preview a Base64 image, paste the full Data URL (starting with data:image/...) directly into your browser's address bar and press Enter — the browser will render it as an image. To save it as a file, right-click and choose Save Image. Developers can also decode Base64 strings programmatically using JavaScript's atob() function.
Use our main tool to compress, resize, and convert JPG, PNG, WebP, and AVIF images — all locally in your browser with no uploads required.
Free Image Compressor & ResizerHEIC files from your iPhone won't open on Windows or most websites. Our free converter turns them into universally compatible JPGs — instantly, no uploads.
Free HEIC to JPG Converter