What this tool does
Base64 Encoder: free online Developer tool with clear controls, private processing where supported and verifiable results.
Input and output
Encode Base64: one file → the Base64 Encoder result, which you can copy and download when the tool produces a file
How to use Base64 Encoder
- Provide one file.
- Leave Source at its default "text" or choose another value.
- Fill in Text to encode.
- Press "Encode Base64" and review the result in the panel on the right.
- Download or copy the Base64 Encoder result, which you can copy and download when the tool produces a file.
Settings
Privacy and limitations
- Base64 Encoder runs entirely in your browser: the input is not uploaded, so it never leaves your device.
- Output: the Base64 Encoder result, which you can copy and download when the tool produces a file.
- Results depend on valid input and on the limits declared by each field above; this page does not promise a fixed processing time or file size.
Frequently asked questions
- Is my data uploaded when I use Base64 Encoder?
- No. This tool runs entirely in your browser, so the input stays on your device and is not uploaded.
- Which input does it accept?
- It accepts one file.
- What do I get back?
- After you press "Encode Base64" the result panel shows the Base64 Encoder result, which you can copy and download when the tool produces a file, which you can copy or download.
- Can I change the settings?
- Yes. The page exposes Source (Text, File); URL-safe alphabet (Yes, No); Include data URI prefix (Yes, No); Line wrapping (None, 64 characters, 76 characters).
