Developer tool

Base64 encode and decode

Convert text to Base64 and back, turn files and images into Base64 or data URIs, and save Base64 as a file again.

Text

Encode → Base64 Decode Base64 →

URL-safe (- and _ instead of + and /, no =)

Input

Result

Text is treated as UTF-8, so Hindi, emoji and ₹ work.

File → Base64

Drop any file here or click to chooseImages, PDFs, fonts… up to 10 MB

Output

Data URIPlain Base64CSS background

Base64 → File

Paste Base64 or a data URI

File name

What is Base64?

Base64 writes any data, even pictures and files, using only 64 safe characters (A–Z, a–z, 0–9, + and /). It's used to put images directly in HTML or CSS, send attachments in email, and pass data in JSON or URLs. The result is about a third bigger than the original.

Is Base64 encryption?

No. Anyone can decode it. Never use Base64 to hide passwords or private data.

What is URL-safe Base64?

It swaps + for - and / for _, and drops the = padding, so the text can go in a web address or file name. JWT tokens use it.

The decoded text looks like gibberish.

The Base64 probably holds a file (like an image or PDF), not text. Paste it into Base64 → File instead.