Convert Base64 to BMP
Decode a Base64 string back into a downloadable BMP bitmap. Runs entirely in your browser, so your data never leaves your device.
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Output
The result appears here as you type.
How to use Convert Base64 to BMP
- 1. Paste the Base64 string. Paste the encoded text into the input pane, either a bare Base64 string or a full data: URI; the tool strips any header prefix automatically before decoding.
- 2. The tool decodes the bytes. There is nothing to configure. The decoded bytes are written out as a BMP file, so make sure the Base64 you paste actually represents bitmap data.
- 3. Download the BMP file. Save image.bmp once it appears ready in the output panel, then open it in any image viewer to confirm the decoded picture looks correct.
When to use Convert Base64 to BMP
Convert Base64 to BMP decodes a Base64 string, or a full data: URI, back into a downloadable BMP bitmap file. It reverses whatever process turned an image into text in the first place, such as embedding it in code or a database field.
- Recovering an image from a database blob. An old database stores images as Base64 text in a column, and you need to pull one out, decode it, and inspect it as an actual file rather than a string.
- Extracting an embedded asset. A config file or email template has an image embedded as a Base64 string, and you need the original file back to edit it in an image editor.
- Debugging a broken data URI. A data: URI copied from source code does not render as expected in a browser, so decoding it back to a real file confirms whether the underlying bitmap data is intact.
Examples
Restore an image
Input
iVBORw0KGgo… (or a full data: URI)
Output
image.bmp ready to download
About the Convert Base64 to BMP tool
Convert Base64 to BMP runs as plain JavaScript in your browser tab, with no server behind it. Decode a Base64 string back into a downloadable BMP bitmap. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Image Tools section, 200 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Convert Base64 to BMP cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.