Drop an image to get its Base64 data URI plus copy-ready <img> and CSS snippets — or paste a Base64 string to turn it back into an image file.
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A data URI embeds the image inside your HTML, CSS, JSON or email template, saving an HTTP request and avoiding broken image links. It's ideal for tiny icons, email signatures and single-file demos.
Base64 is about 33% larger than the original file and can't be cached separately by the browser. For anything bigger than a few kilobytes on a website, a normal image file is faster.
📖 Read the full guide: Image to Base64: When to Use Data URIs (and When Not To)
Encode text to Base64 or decode it back — with full UTF-8 and URL-safe support.
Paste SVG code, preview it, and download as an SVG file or PNG at up to 4× scale.
Create a complete favicon set from an image, text or emoji — ICO, PNGs, manifest and HTML.
No. Images are processed with your browser's canvas — they never leave your device, so it's safe for ID photos, product shots and screenshots containing private information.
Base64 represents every 3 bytes as 4 text characters, adding roughly 33% overhead (plus the data: prefix).
Many email clients — including Gmail on the web — block data URI images. For email, host images on a server or attach them as inline (CID) attachments.