UtilityKit
40+ fast, free tools. Most run in your browser only; Image & PDF tools upload files to the backend when you run them.
Data URL Builder
Build and decode data URLs with MIME, charset, and Base64 options.
About Data URL Builder
Data URL Builder helps you create and inspect data URLs for frontend prototyping, embeds, and debugging. You can choose MIME type, charset, Base64 mode, and decode existing data URLs back to text with metadata.
Why use Data URL Builder
- Generate valid data URLs quickly
- Decode unknown data URLs
- Control MIME and encoding options
How to use Data URL Builder
- Enter source text and options
- Build data URL
- Decode or copy output as needed
When to use Data URL Builder
- Inline asset experiments
- Debugging encoded payloads
- Testing data: scheme behavior
Frequently Asked Questions
What is a data URL?
It embeds content directly in a URL using data:.
When should Base64 be used?
Use Base64 for binary-like or safer transport payloads.
Can it decode existing data URLs?
Yes.
Does it show MIME and charset?
Yes.
Is conversion local?
Yes.