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Files stay on your device

Image to Base64

Convert an image file into a data URL for small embedded assets.

Free. No account needed.

Optional equipment

If you plan to print your output, these are options to compare. Check paper size, margins and print scaling.

You do not need to buy anything to use this free tool.

As an Amazon Associate I earn from qualifying purchases.

Image settings

File limit: 3 MB · JPG, PNG, WebP, HEIC, HEIF

Result

Choose an image and create your result.

Share this tool

The link opens this page only. Your files, inputs and private results are not shared.

What can you do with your output?

Choose a related tool for your next task. These links do not transfer your file or inputs automatically; select your file in the next tool.

How it works

  1. Choose a small image from your device.
  2. Create its Base64 data URL.
  3. Copy the resulting data URL.

Example & practical use

Upload a small icon, then copy its data URL.

PNG to Base64: try a real sample file

1200 × 900 sample PNG with a teal circle on a cream background and orange side bands
KitForma sample without personal data. Original PNG file: 13,688 bytes.
  1. Download the sample PNG and select it in the tool above.
  2. Create the result. The data URL should start with: data:image/png;base64,
  3. Use the format the receiving application requests. An HTML img src or CSS url() uses the complete data URL; a field requesting raw Base64 expects only the payload after the comma.

Expected length for this file: 18,252 Base64 characters; with the prefix, 18,274 characters. Formula: 4 × ceil(13688 / 3) + 22.

Base64 is not compression or encryption. It increases the text embedded in the page; a separate image file is often more suitable for a large photo. The receiving application may block data: URLs.

Understand Base64 formats and limits · MDN: data URLs

Limits and help

Base64 adds about one third to the binary size. Use for small assets, not large website photos.

Your files are yours.

Image and text processing happens in your browser. Your files are not uploaded to our servers.

Troubleshooting

Base64 and URL encoding are different formats. Choose the matching decoder; remove a data:...;base64, prefix only when the tool expects raw Base64. Arbitrary binary files may not decode as UTF-8 text.

Report an issue and track its status · Contact · Contact

KitForma

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