Base64 to Image
Decode a Base64 string back into an image.
Runs in your browser, nothing is uploadedFree, no signupNo watermark
Paste a string and decode to preview.
Three steps
How to use the base64 to image
- 01
Paste the string
Drop in a full data URL or a bare Base64 string.
- 02
See the decoded image
The image renders immediately, along with its format and dimensions.
- 03
Download the file
Save it as a normal image file.
Why this one
What makes it different
Takes bare strings too
Base64 copied out of a JSON payload rarely has the data URI prefix, and the format is detected rather than demanded.
Tells you why it failed
A truncated or wrapped string is the usual cause, and saying so beats an empty box.
Local, so payloads stay private
Base64 in an API response often contains something you would not paste into a random website. This one does not send it anywhere.
How this tool handles your files
- Where it runs
- Your browser, not a server
- Uploads
- None, ever
- Account
- Not required
- Watermark
- Never added
The short version
About base64 to image
Base64 turns up whenever an image has to travel through something that only carries text: a JSON API, a config file, a database column, a webhook payload. Decoding it back to a picture is a small job that usually appears at the least convenient moment, in the middle of debugging why the wrong thing is being returned.
Questions
Base64 to Image FAQ
Why will my Base64 string not decode?
Usually it was truncated on copy, or line breaks were introduced by whatever displayed it. Both are common when pulling a long string out of a terminal or a JSON viewer.
Do I need the data:image prefix?
No. A bare Base64 body works, and the format is detected from the decoded bytes rather than trusted from the prefix.
What format will I get back?
Whatever it originally was. Base64 is an encoding, not a format, so a PNG encoded and decoded is still a PNG.
Is there a size limit?
Only what your browser will hold in a text field. Very long strings, several megabytes of text, can make the tab sluggish while decoding.
Free, and staying free
The tools are free because the icons are the business.
Thridy is a library of thousands of 3D icons in one consistent style, free for commercial use with no attribution and no account. The tools exist so you never have to upload an image to somebody else's server to resize it.
Keep going
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View Metadata
Read the EXIF data hidden inside a photo.
Image to Base64
Turn an image into a Base64 data URL.