Three straightforward steps
- Choose or paste the input requested by this tool.
- Configure the options and run the operation locally.
- Review and download or copy the result.
Images TOOL
Image to Base64
Convert a local image into a Base64 data URL directly in your browser.
ON-DEVICESelected input is processed in this browser.
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The selected input stays under your control
On-device processing means the input is handled by browser APIs on the device running this page. Closing or refreshing the page normally clears the active in-memory working session.
Read the Privacy Policy →Encode an image as a Base64 data URL
Turn an image into text that can be embedded in CSS, HTML or test payloads.
How to use it
- Choose an image.
- Wait for the browser to read it as a data URL.
- Copy the result or save it for development use.
Supported input
- Common browser-readable image formats
- Local image files within available browser memory
Worked example
Encode a small 2 KB SVG-style PNG icon for an offline HTML prototype.
Limitations
- Base64 is roughly one-third larger than binary data.
- Large data URLs are awkward and can exceed consumer limits.
Troubleshooting
- Use a normal file URL for large images.
- Include the full data URL prefix when embedding directly.
Tool-specific questions
Is Base64 encryption?
No. It is a reversible text encoding.
Why did the text become larger?
Base64 represents three binary bytes with four text characters.
Before you process
Can I use this image to base64 online without uploading my input?
Yes. This tool is labelled On-device, so the selected input is processed in your browser and is not sent to a ForgeMyFile processing API.
What happens if the browser cannot process it?
The tool shows a readable error and stops. It does not silently fall back to a cloud upload.
Why can performance differ between devices?
The browser is doing the work locally, so speed and practical file size depend on available memory, CPU and browser capabilities.