Convert local image files or external image URLs into Base64 encoded strings for HTML, CSS, or JSON
Supports PNG, JPG, WebP, GIF, SVG, BMP, HEIC (Max 20MB)
Embed images directly into HTML documents or CSS stylesheets without triggering extra HTTP network requests.
Conversion is performed 100% locally inside your browser memory. Your files are never uploaded to any backend.
Export data URIs with proper MIME types for PNG, JPEG, SVG, WebP, GIF, and ICO image formats.
Hop to nearby dev utilities without losing context.
Quick steps so you can get results fast.
Type, paste or upload the text, code or file the tool works on.
Pick the format, action or settings the tool offers for your task.
Review the result next to your input before using it.
Copy the result to the clipboard or download it where the tool offers a download.
Everything you need to know about Image to Base64.
Answers to the most common devtool questions.
No. This tool runs in your browser with JavaScript, and what you type or paste is not sent to ToolzStack servers. Page visits are measured with Google Analytics, as described in the Cookie Policy.
Your input stays in the page while it is open. A few tools keep a short history or favourites in the local storage of this browser; you can clear it in the tool or in your browser settings.
Use Report a Bug on the page or the contact form, and include a sample input that shows the problem (remove anything sensitive first).