Base64 Encoder
Convert plain text or binary files to Base64 strings — for data URIs, APIs, and authentication headers.
Base64 Encoder
Convert text or files to Base64 — for data URIs, APIs, and auth headers.
How to use Base64 Encoder
- 1
Type or paste your text
Enter UTF-8 text in the input panel — emoji and non-ASCII are fully supported.
- 2
Or upload a file
Click 'Upload file' to encode an image, PDF, or any binary file into Base64.
- 3
Pick URL-safe (optional)
Use URL-safe encoding when the Base64 will live inside a URL or filename.
- 4
Copy or download
Copy the result with one click, or download it as a .txt file for sharing.
About Base64 Encoder
Convert plain text or binary files to Base64 strings — for data URIs, APIs, and authentication headers.
Use Base64 Encoder when you need to encode text or files to base64. Review the available options in the interface, process your input, and check the result before saving or copying it.
Frequently asked questions
Base64 encodes binary data as ASCII text so it can travel safely through systems that only handle text — JSON, JWTs, data URIs, email attachments.
Related tools
All Developer ToolsBase64 Decoder
Decode Base64 back to text or files
Open toolURL Encoder
Percent-encode text for safe URLs
Open toolDiff Checker
Compare two texts side by side
Open toolJSON Formatter
Format, validate & beautify JSON
Open toolJSON to CSV
Convert JSON arrays to CSV files
Open toolURL Decoder
Decode percent-encoded URLs back to text
Open tool