Base64 to Image
Convert Base64 encoded strings back into viewable images. Perfect for decoding data URIs from emails, APIs, or embedded images.
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Turning a Base64 string back into a picture
Base64 encodes binary data as printable text so it can be carried by systems that expect strings. Images embedded in HTML, CSS, JSON APIs, email bodies, or database columns are frequently stored this way, usually as a data URI beginning with data:image/png;base64,.
Decoding reverses the process exactly: four characters of Base64 become three bytes of the original file, byte for byte. Nothing is lost and nothing is approximated — the decoded image is identical to the file that was encoded. The only common failure is a truncated or wrapped string, since a payload copied out of a log or an email that has been line-wrapped may be missing characters, and an incomplete payload decodes to a corrupt image.
Why we built this tool
Developers decode Base64 images while debugging an API response that returns pictures inline, extracting an asset embedded in a stylesheet or email template, or recovering an image stored as text in a database column.
Those payloads arrive inside API responses that also contain tokens, customer identifiers, and internal detail. Pasting them into an online decoder means handing all of that to a third party. Ours decodes in the browser and renders straight to a canvas, so nothing is transmitted, nothing is logged, and there is no length limit on the string you paste. It works offline too, which suits the debugging sessions where this tool actually gets used.
Tips and common mistakes
- Include or strip the
data:image/...;base64,prefix as the destination requires; both forms are common. - A decode failure almost always means the string was truncated or line-wrapped in transit.
- The declared MIME type in the prefix can be wrong — check the decoded image rather than trusting the label.
- Payloads pasted out of API responses often carry surrounding quotes or escapes that must be removed first.
Open Base64 to Image with a link
Base64 to Image can be handed its input by the link that opens it, so the page arrives with the work already done. This is meant for assistants and scripts: if a chatbot, an editor extension, or a command-line agent already holds your content, it can build a link instead of asking you to copy and paste into a box.
The payload rides in the fragment — the part of a URL after the #. Browsers never send the fragment to a server, so anything handed over this way stays on your device exactly as a dropped file would. A link that uses the query string instead is rewritten into the fragment by the page before any analytics or ad script can read the address.
Prefix any field with gz — #gztext= — to pass it as gzip-compressed base64url, which fits roughly five to ten times more into the same link. Links stay reliable up to about 8,000 characters; past that, chat apps and address bars start truncating them, and the page says so rather than loading half a document.
One exception to the privacy rule: ?url= tells the page to download the input from an address. That request goes from your browser straight to that server — not through ours — but it does leave your device, and it only works if the server allows cross-origin requests.
#text=— the text to work on
Example: https://mygadgets.ink/tools/base64-to-image/#text=...
Quick start: using Base64 to Image
- Paste the Base64 string, with or without the data URI prefix.
- Run the decode to render the image.
- If it fails, check the string is complete and has no stray line breaks.
- Confirm the picture is the one you expected.
- Download it as a normal image file.
The other direction is Image to Base64. For plain text rather than images, use Base64 Encoder/Decoder.