Image to Base64 Converter input is rejected
The source data may be incomplete, malformed, or different from the format this tool expects.
Check the input hint, try a small sample first, and correct the source file before running the full job.
Use this tool
Prepare the input and run the tool
Choose an image file from your computer. Result: Preview the image and copy or download the Base64 data URL.
Ready. Choose an image file to convert.
Preview
Data URL
Base64 data URL appears here.
Data handling: Files and pasted data are processed in this browser session.
Tool guide
How to use Image to Base64 Converter
Use Image Base64 when you need to check, convert, or prepare a file before using it in another app. Review the result before downloading or copying it.
What this tool does
Turn a local image into a Base64 data URL for quick previews, CSS tests, email templates, or small embedded assets.
- Input
- Choose an image file from your computer
- Output
- Preview the image and copy or download the Base64 data URL
Tool advantages
- Runs in this page; the file or pasted data is not sent to a new app.
- Keeps the preview, report, and download in the same screen.
- Leaves you with an output you can copy, download, or check before using.
Step-by-step usage guide
- 1Choose an image file.
- 2Review file size, MIME type, and the Base64 output length.
- 3Copy the data URL or download it as a text file.
Common errors and fixes
Image to Base64 Converter result looks incomplete
The preview can only use the rows, files, or fields provided in the current browser session.
Confirm that the full source was pasted or selected, then rerun the tool and review the output before downloading.
Image to Base64 Converter output needs extra cleanup
Some destination systems have rules that are stricter than a browser-local utility can infer.
Use the report as a cleanup checklist and verify the final file in the app where it will be imported or shared.
When to use Image to Base64 Converter
- You are checking files before an upload, import, share, or delivery.
- You want to confirm the result before sending it to another system.
- You need a copied result, downloaded file, or report that can be reviewed outside the page.
FAQ
Should I use Base64 for large images?
Usually no. Base64 is best for small assets and quick tests because it makes the output larger than the original file.
Does the image leave my computer?
No. File reading and conversion happen inside your browser.