What This Tool Does
This browser-based converter reads image data locally and creates Base64 Data URL output. It can also validate Base64 image data, preview it, and download the decoded image.
MV ToolsImage tool
Image to Base64 Converter
Convert images to Base64 data URLs, or decode Base64 image data back into downloadable image files in your browser.
Use image Base64 only where an embedded data URL is appropriate
Base64 changes how image bytes are represented; it does not compress them, protect them, or make them suitable for every delivery path.
- Use a small image and check the destination supports a Data URL before embedding it in HTML, CSS, JSON, or a test payload.
- Keep the original image separately: Base64 is normally larger than the source binary file.
- Do not paste private images or signed payloads into third-party logs, tickets, or public examples.
Encoding, decoding, previewing, and downloads stay in the browser. The generated Data URL can still expose the complete image to anyone who receives it.
Understand Base64, URL Encoding, and HTML Entities Without Treating Them as EncryptionImage to Base64 and Base64 to Image Converter
Convert image files to Base64 data URLs or decode Base64 image data back into downloadable image files locally in your browser.
Common Use Cases
- Converting small JPG, PNG, WebP, or SVG images to Base64 for HTML, CSS, or JSON
- Decoding Base64 image data from APIs, logs, or test payloads
- Testing Data URL image payloads without uploading files
How Data Is Handled
Image Base64 conversion runs in your browser. Images and Base64 text are not uploaded to the server.
FAQ
Does Base64 make images smaller?
No. Base64 usually makes binary data larger, but it can be useful for embedding.
Can I convert Base64 back to an image?
Yes. Paste a supported Base64 image Data URL and download the decoded image.
Are images uploaded?
No. This tool runs locally in the browser.