Image to Base64
Convert an image to a copyable and downloadable Base64 Data URL.
Private: it runs in your browser and your file is never uploaded. How to check it
Up to 25 MB · 40 megapixels · 16,384 px per side. Processed locally.
You can also drag or paste (Ctrl+V) an image onto this page.
Reprocessing can change metadata and color profiles. JPG does not preserve transparency. Inspect background and opacity in the preview; each tool’s settings determine the result.
Your files are processed here, on your device
We do not send the contents of your files or text to any server: everything is processed in your browser’s memory. No account is needed, there is no daily quota and we use no analytics or trackers. Each tool has size limits to protect your device’s memory.
A connection is only needed to load the site. After that you can disconnect and the tools keep working (some previews may need the connection). Hosting may receive technical visit data. Favorites store only tool identifiers in this browser.
How we handle your data →How to use this tool
- Select an image small enough to embed.
- Generate its Data URL and keep its file-type prefix.
- Copy or download the complete text; it contains the selected file’s bytes.
An example you can verify
Get a Data URL for a prototype or small embedded resource.
Example input
A PNG image.
Expected result
Text beginning with data:image/png;base64, followed by the encoded file.
Base64 increases size and does not encrypt the image. A separate file is usually preferable for large resources.
Image to Base64: uses and practical guidance
Converting an image to Base64 produces a textual representation of the file’s bytes. The Data URL contains a prefix identifying content type and encoding, followed by the encoded data. It can be useful for a technical example, a small embedded resource or a test environment accepting this representation. The operation does not convert the image into another image format or optimize its pixel dimensions. It changes the way the existing file is represented.
Base64 generally increases size compared with the original bytes. A large photograph can therefore become an impractical block of text to copy or embed. Consider a separate file URL when a resource needs reuse or independent storage. Retain the prefix when the destination expects a complete Data URL. If it expects only Base64, check its specification before removing that prefix. Related representations are not interchangeable in every input field or application.
Encoding is reversible and does not protect content. A recipient can reconstruct the image and its original bytes from the string. This function does not remove metadata from the selected file. Prepare and inspect the image before encoding when information should not be shared. A string that looks unreadable is not a secret merely because its visual appearance differs from the picture it represents. Treat its contents with the same care as the source file.
Confirm the entire output was copied and test display in the destination. Missing characters or an incorrect prefix can prevent decoding. The text Base64 tool handles UTF-8 words, while Image converter changes PNG, JPG or WebP format. Keep the source and encoded representation only when both are needed for the workflow, rather than unnecessarily duplicating large resources in textual form.
A practical check before using the result
For a technical trial, start with a small image and confirm the complete Data URL displays in the destination. On failure, inspect the prefix and whether copying truncated the string. One editor may visually show only part of a long line while another field actually discards content. Distinguish those situations with a known sample. For page resources, consider whether embedding simplifies use or complicates caching and maintenance. Keep the named source and format so the representation can be generated again when the image changes. Testing with a small file isolates representation errors before a much larger string makes inspection and transfer unnecessarily difficult.
Settings and limits
The Data URL includes the MIME type and original content encoded as Base64. Copy it or download it as text. Base64 is approximately one-third larger than the original bytes.
Frequently asked questions
Does Base64 compress the image?
No. It encodes bytes as text; it is neither compression nor encryption.
Is it free, and do I need to sign up?
Yes, it is free. You do not need to sign up, create an account or install an app, and there is no daily quota: open the tool and use it. The only limits are file sizes, which protect your device’s memory.
Does it leave a watermark on the result?
No. Snipshed adds no watermark, logo or text of its own to the files you download: the result is yours exactly as you configured it.
Does it work on iPhone and Android?
Yes, from your phone’s browser (Safari, Chrome…) and without installing any app. When it finishes, the file is saved from the browser itself: on iPhone it appears in the Files app and on Android in Downloads. With very large files the phone may run out of memory; try a smaller file or a computer.