What Base64 Image does
Image data URLs are common in CSS, API payloads, fixtures, and email templates. Select an image to create Base64, or paste image Base64 to validate, preview, and download it without uploading the bytes.
Common uses
- Convert a local image to a Base64 data URL
- Preview a Base64 image returned by an API
- Download Base64 PNG, JPEG, GIF, or WebP content
Privacy and limitations
Image bytes are read and decoded only in this browser. ParseNest does not receive the file or generated Base64.
Validate important output in the actual language, database, or target platform.
Frequently asked questions
Which formats are supported?
PNG, JPEG, GIF, and WebP are accepted and verified from their file signatures.
Does Base64 reduce image size?
No. Base64 normally increases byte size by roughly one third.
Is SVG supported?
No. SVG can contain active content, so this image-specific tool accepts only raster formats.