Base64 Repair

Inspect Base64 with missing padding, whitespace or a Data URI prefix. Preview safe normalization locally; unexpected characters remain visible errors.

Base64 Repair
0 characters
Ready when you are

Add your input, adjust the options and run the tool.

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Runs in your browser
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How to use this tool

01

Add your input

Paste text or choose a file. Try the example to get started.

02

Choose your options

Preview safe normalization of whitespace, Data URI prefixes and missing padding. Unknown characters remain errors.

03

Inspect and export

Review the processing notes, then copy or download the result. Continue with another tool if needed.

Keep going

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