What is Base64 encoding?

Base64 encodes binary data as ASCII text, commonly used for embedding data in HTML, CSS, or APIs.

What can I encode with the Base64 Encoder?

Any text string including plain text, JSON, HTML, URLs, and special characters. You can also upload a file to convert it to a Base64 data URI for embedding in CSS or HTML.

What is Base64 typically used for?

Embedding binary data in text formats (JSON, XML, HTML), transmitting data via email, encoding HTTP Basic Auth credentials, storing small images directly in CSS as data URIs, and passing binary data in REST APIs.

What is the difference between standard Base64 and URL-safe Base64?

Standard Base64 uses + and / characters which are reserved in URLs. URL-safe Base64 replaces + with - and / with _ making the output safe to include directly in URLs and filenames without percent-encoding.

Does Base64 Encoder / Decoder log or store the data I paste into it?

No. Base64 Encoder / Decoder processes everything locally in your browser. Nothing is sent to a server, logged, or stored. Your code, secrets, and data never leave your machine.

Which browsers are compatible with Base64 Encoder / Decoder?

Base64 Encoder / Decoder works in all modern evergreen browsers: Chrome 90+, Firefox 88+, Edge 90+, and Safari 14+. Internet Explorer is not supported.

Is Base64 Encoder / Decoder free to use?

Yes, Base64 Encoder / Decoder is 100% free with no usage limits, no watermarks, and no hidden charges. The platform is supported by non-intrusive advertising so all tools stay free for everyone.

Do I need to create an account to use Base64 Encoder / Decoder?

No account or registration is required. Open Base64 Encoder / Decoder and start immediately — no email, no sign-up, no personal information needed.

Is my data safe when using Base64 Encoder / Decoder?

Yes. Base64 Encoder / Decoder runs entirely in your browser using client-side JavaScript. Your files and data never leave your device and are never transmitted to our servers.

Does Base64 Encoder / Decoder work on mobile and tablet devices?

Yes. Base64 Encoder / Decoder is fully responsive and tested on smartphones, tablets, and all major desktop browsers (Chrome, Firefox, Safari, and Edge). The interface adapts automatically to any screen size.

Base64 Encoder / Decoder

Encode and decode Base64 strings

FreeNo sign-upDeveloper Tools →

Base64 Encoder / Decoder is a free, browser-based web development and coding tool. Encode text or files to Base64 and decode Base64 strings back to text. Supports UTF-8, binary data, and data URI generation.

Web developers, software engineers, and DevOps professionals use Base64 Encoder / Decoder every day to save time and skip the overhead of desktop software or paid services. No installation, no account, and no technical knowledge required — just upload Base64 Encoder / Decoder and get results in seconds. Your files never leave your browser — full privacy by design.

Text → Base64● Live

Text Input

Start typing — output updates instantly

How to use Base64 Encoder / Decoder

Enter text

Paste the text or data to encode.

Encode or Decode

Toggle between encode and decode modes.

Copy result

Copy the output to clipboard.

Use Cases

Debugging and validating data formats during API development
Preparing test fixtures and sample payloads
Encoding and decoding data for integrations and authentication flows
Formatting and linting configuration files before deployment

Key Benefits

100% free with no usage limits, watermarks, or hidden fees
No account or sign-up required — use it instantly
Works in all modern browsers on desktop, tablet, and mobile
Privacy-first: all processing runs locally, files never leave your device
Fast local processing — no server upload queues
Batch process multiple files in one operation
Original file is never modified — output is always a new file