UTF-8 text encoding
Encode regular text, accents, symbols and emoji correctly as Base64.
Fast, private and free
Base64 encoder online
Use this free Base64 encoder to convert text, images, PDFs and other files instantly. Create standard Base64, URL-safe output, or a complete data URL privately in your browser.
Source content
Enter text or choose a file to encode.
Drop a file here
Or choose any image, PDF, document, archive, audio or video file.
0 source bytes
Your text and files are encoded locally in this browser and are not uploaded by this page.
Base64 output
Copy the result or download it as a text file.
0 output bytes
Type: text/plain
Free Base64 encoder for text and files
Convert content to Base64 without an account, upload step, or external server. Everything runs locally in your browser.
File and data URL support
Encode images, PDFs and other files, with an optional MIME-aware data URL prefix.
URL-safe output
Replace special Base64 characters for use in URLs, tokens and web applications.
How to encode Base64 online
Turn text or binary files into Base64 in a few simple steps.
Encode Base64 in four steps
- Choose the Text or File tab.
- Enter text or select a file from your device.
- Choose URL-safe output or a data URL when needed.
- Select Encode to Base64, then copy or download the result.
When should you use a data URL?
A data URL includes both the file type and Base64 content in one value, such as data:image/png;base64,.... It is useful when embedding small images, documents or other resources directly in HTML, CSS or JSON.
What is Base64 encoding?
Base64 converts binary data into ASCII text using 64 characters. It is commonly used to carry images, file attachments and other data through text-based formats such as HTML, CSS, JSON and email. Base64 is an encoding format, not encryption, so it should not be used to hide sensitive data.
Standard and URL-safe Base64
Standard Base64 uses +, / and optional = padding. URL-safe Base64 substitutes hyphens and underscores, making encoded values easier to use in URLs and API parameters. To reverse an encoded value, use our free Base64 decoder.
Base64 encoder FAQ
Answers about encoding text, files, data URLs and URL-safe Base64 with My Panda Toolbox.
What is Base64 encoding?
Base64 encoding converts text or binary bytes into a text representation that can be stored or transmitted through text-based systems.
Is this Base64 encoder private?
Yes. The encoding process runs inside your browser, so the content is not uploaded by this tool.
Can I encode images and PDFs?
Yes. Choose the File tab and select an image, PDF, document, archive or other file to convert it to Base64.
What is URL-safe Base64?
URL-safe Base64 replaces plus and slash characters with hyphens and underscores, and removes trailing padding characters.