It is not secure
Base64 is easily reversed. Use real encryption for secrets.
Base64 Encode & Decode
Encode text or any file to Base64, or decode a Base64 string back to readable text. It handles every language and emoji correctly, and supports the URL-safe variant used in tokens and web addresses.
- 100% free
- No sign-up
- Runs in your browser
Drop any file here or click to chooseUp to about 20 MB
How to use
How to use the Base64 Encode & Decode
- Choose Encode, Decode or File to Base64.
- Paste your text or drop a file.
- Tick URL-safe if the result will go into a URL or token.
- Copy or download the result.
Private by design. Your code and data are processed in your browser. Nothing is uploaded, logged or stored, so it is safe for API responses, configs and other internal data.
About this tool
What is Base64 used for?
Base64 represents binary data using only 64 safe characters: letters, numbers, plus and slash. It is used wherever data has to travel through systems designed for text, such as email attachments, data URIs, JSON APIs, HTTP basic authentication and JSON Web Tokens.
Base64 is encoding, not encryption. Anyone can decode it, so never treat it as a way to hide passwords or secrets. The URL-safe variant swaps + and / for - and _ and drops padding, which is the form used in JWTs and many web APIs.
Good to know
Base64 tips
Expect a third larger
Encoded data is about 33% bigger than the original.
Decode JWT parts
Paste the middle part of a JWT to read its claims.
Mind the variant
Use URL-safe Base64 for URLs and tokens.
FAQ
Base64 Encode & Decode FAQs
Does it support Urdu, Arabic and emoji?
Yes. Text is encoded as UTF-8 first, so any language works.
Is Base64 encryption?
No. It is a reversible encoding that anyone can decode.
Can I encode files?
Yes. Use File to Base64 and drop any file.
Is my data uploaded?
No. Encoding and decoding happen in your browser.
Need extra development capacity?
Hire dedicated developers from iCreativez who work as part of your team.