Base64 Encoder / Decoder

Encode text or files to Base64, or decode Base64 back to plain text. Supports URL-safe Base64.

100% Private & Secure

Zero Server Uploads

Your files are processed entirely inside your browser tab using WebAssembly & local JavaScript APIs.

Base64 Conversion Settings
Source Text / File
Base64 Output

How to use this tool

1

Select your conversion Mode: Encode (Text/File to Base64) or Decode (Base64 to Text/File).

2

Choose your input type: Text to type directly, or File to upload local documents/binaries.

3

Configure output options: Select Standard Base64 or URL-Safe formats.

4

Watch the output build dynamically in real-time as values are computed.

5

Click Copy Output or Download to save the formatted result locally.

Key Features & Benefits

Dual Operations Mode

Convert standard strings to Base64 code, or decode hashes back to readable strings.

Binary File Uploader

Drag and drop images, PDFs, or archives to parse directly into Base64 hashes.

URL-Safe Conversions

Clean URL strings output by automatically swapping safe replacements keys.

Real-time Auditing

Instant metrics indicating character size increases, conversion ratios, and sizes.

Frequently Asked Questions