Paste the Base64 image string into the decoder field, then click the decode button. If the string is valid image data, the page shows a preview and lets you download the decoded image.
Base64 to Image Converter and Image to Base64 Encoder
Convert Base64 to image or image to Base64 in your browser. Paste Base64, upload PNG/JPG/GIF/WebP/BMP up to 10MB, and preview or copy the result.
Image to Base64
Upload PNG, JPG, GIF, WebP, or BMP up to 10MB to create a Base64 Data URI
Base64Base64 to Image
Paste a Base64 image string with or without data: prefix to preview and download an image
Decoded image will appear here
What This Base64 Image Tool Does
This page handles two focused image workflows: convert Base64 to image, and convert image to Base64. It is not a general text encoder. The input and output are meant for browser-readable image data.
| Task | Input | Output |
|---|---|---|
| Base64 to image | Base64 string with or without `data:` prefix | Previewable image that can be downloaded |
| Image to Base64 | PNG, JPG/JPEG, GIF, WebP, or BMP image up to 10MB | Base64 Data URI text |
| Base64 image viewer | Pasted Base64 image string | In-browser visual preview |
| Data URI check | A value such as `data:image/png;base64,...` | Image preview and downloadable result |
The output from the encoder is a full Data URI, not only the raw Base64 characters. That makes it easier to use directly in an image `src`, a CSS background, or a JSON field when your workflow expects image data as text.
Convert Base64 to Image Online
Paste your Base64 image string into the decoder field and click the decode button. The tool validates the Base64 content, builds an image preview, and enables image download when the string can be rendered as an image.
You can paste either format:
| Accepted input | Example pattern | Notes |
|---|---|---|
| Full Data URI | `data:image/png;base64,...` | Best when the MIME type is already known |
| Raw Base64 | `iVBORw0KGgo...` | The tool tries to detect PNG, JPEG, GIF, WebP, or BMP |
When the raw Base64 string does not include a MIME type, the decoder checks common image signatures and falls back to PNG-style handling when needed. If the string is not valid Base64 or cannot be used as an image, the page shows an error instead of creating a broken download.
Convert Image to Base64 Data URI
Upload one image file to create a Base64 Data URI. The encoder reads the selected image in your browser and places the generated Base64 text in the output box, ready to copy.
Supported image inputs
The upload field is for image files only. Use PNG, JPG/JPEG, GIF, WebP, or BMP when you want the most predictable result. The current upload limit is 10MB, so very large originals should be resized or compressed before using this page.
What the Base64 output includes
The generated value includes the Data URI prefix, such as `data:image/png;base64,`. That prefix tells browsers what kind of image data follows. If you only need the raw Base64 portion, copy the generated text and remove the prefix in your own workflow.
Use It as a Base64 Image Viewer
A Base64 image viewer is useful when you have a long encoded string and need to know what image it represents. Instead of creating a temporary file by hand, paste the string into this tool and check the preview.
This is helpful for:
| Use case | Why the preview helps |
|---|---|
| API responses | Confirm that an image field contains the expected picture |
| HTML or CSS snippets | Check a `data:image/png;base64` value before placing it in a page |
| Email or template testing | Verify small embedded assets such as icons or logos |
| Debugging image data | See whether the encoded value is valid image content |
Use the viewer for image inspection, not for editing. The page does not crop, resize, compress, remove backgrounds, or change the decoded image.
Data URI, Raw Base64, and Image Formats
Base64 image data often appears in two forms. A Data URI includes a media type and prefix. Raw Base64 contains only the encoded characters.
| Form | Example | Best use |
|---|---|---|
| Data URI | `data:image/png;base64,iVBOR...` | HTML, CSS, previews, browser rendering |
| Raw Base64 | `iVBORw0KGgo...` | API fields, database values, logs, custom payloads |
The keyword `data image png base64` usually refers to the Data URI pattern `data:image/png;base64,...`. This tool can preview that kind of value and can also generate a Data URI when you upload an image.
Base64 does not compress an image. In many cases, Base64 text is about one third larger than the original binary file. Use it when text transport or inline embedding matters more than keeping the smallest possible file.
Privacy and Browser-Based Processing
This Base64 encoder decoder works in your browser. Image upload for encoding is read locally through the browser, and Base64 decoding uses client-side browser APIs to build the preview.
That matters for quick checks, development handoffs, and personal image snippets because you do not need to send the image to a conversion server just to create or view Base64. Performance still depends on your device, browser, and file size, especially near the 10MB upload limit.
Use this page for ordinary image data. Do not paste secrets, credentials, or sensitive production payloads into any web tool unless that matches your organization's security rules.
Frequently Asked Questions
Yes. Paste a Base64 image value to view the image in your browser. This is useful for checking API responses, Data URI snippets, and encoded image strings before using them elsewhere.
Upload a PNG, JPG/JPEG, GIF, WebP, or BMP image up to 10MB. The tool reads the image in your browser and generates a Base64 Data URI that you can copy from the output box.
A `data:image/png;base64` string is a Data URI. The `data:image/png;base64,` part tells the browser the following text is Base64-encoded PNG image data. This tool can preview that value or create one from an uploaded PNG image.
Yes. You can paste raw Base64 without the `data:` prefix. The decoder tries to identify common image types such as PNG, JPEG, GIF, WebP, and BMP before showing the preview.
For image to Base64, use PNG, JPG/JPEG, GIF, WebP, or BMP files up to 10MB. For Base64 to image, the decoder is designed for Base64 strings that represent browser-readable image data.
The encoding and decoding work happens in your browser. The selected image is read locally for encoding, and pasted Base64 is decoded client-side for preview and download.
No. Base64 is an encoding method, not compression. Base64 text is often larger than the original image file, so use it when you need image data in a text format rather than when you need a smaller image.
No. This page is for images. It does not encode plain text to Base64, decode Base64 into readable text, or work as a general text conversion tool.
No. The page is focused on image Base64. It does not convert Base64 to PDF, decode arbitrary files, support Base64URL variants, or provide Python, Java, or command-line code examples.