Image URL to Base64 Converter
Paste the address of an image and convert it to Base64. The fetch happens from your browser — some servers may block cross-origin requests, which is handled gracefully.
1. Image URL
Fetched in-browser2. Output
About Image URL to Base64
Image URL to Base64 fetches an image from a web address and converts it to Base64 in your browser. It is for developers turning a hosted image into an inlinable data string, subject to the source server allowing the fetch.
Sometimes you have a URL but need the image as Base64. Fetching and encoding it in the browser avoids a separate download step, though cross-origin rules may apply.
Step by step
- Paste the address of the image.
- The browser fetches the image from that URL.
- It is converted to Base64.
- Copy the result for inlining.
What it offers
- Fetch and encode from a URL
- Browser-based conversion
- Copyable Base64 output
- No server intermediary
Where it helps
- Inlining a hosted image as a data string
- Converting an image URL for an embedded asset
- Grabbing Base64 for a quick test without downloading first
- Turning a remote icon into inline data
Tips for best results
- Expect some servers to refuse cross-origin requests; download and use a local encoder if so.
- Inline only small images to keep output manageable.
- Confirm you have the right to use any image you fetch.
Pitfalls to watch for
- Expecting every URL to work; some servers block cross-origin fetches.
- Inlining large remote images, which bloats the output.
- Assuming a fetched image is licensed for your use just because it loaded.
Why people use it
One step
Fetch and encode without a manual download.
Browser-based
No server processes the image.
Convenient
Go straight from URL to Base64.
Private to you
The result stays in your browser.
Common questions
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.