Conversions run in your browser

Base64 and Hash Toolkit

Encode, decode, inspect, convert files, calculate hashes and HMAC without reloading the page.

Raw input and secret keys are never written to server logs.

Text Base64 converter

Supports UTF-8, Latin-1, Base64URL, Data URI, line wrapping and padding control.

Encode Decode

Base64 variant

Text encoding

Line length

Live conversion

Keep padding

Ignore whitespace when decoding

Repair missing padding

Output as Data URI

Files are read locally in your browser and are not uploaded.

Drop a file here or tap to choose Max 50 MB

Base64 variant

Include Data URI header

Paste Base64 or a Data URI, preview supported images, then download the decoded file.

File name

MIME type

Calculate common digests locally for text or files.

Text File

Algorithm

Output format

HMAC secret key

Validate format, detect variant, estimate decoded size and identify common file signatures.