Is the file to base64 converter private?
Yes. The browser reads the exact binary bytes, so archives, documents, fonts, executables, and media are supported. All processing happens locally in your browser — nothing is uploaded to our servers.
File to Base64 Converter
Convert any local file up to 100 MB into Base64 for APIs, configuration, storage, or transport.
Runs locally in your browser
How to use it
- Paste your input or choose a file from this device.
- Run the conversion and review the detected type or preview.
- Copy the result or download it for your project.
Built for any file
The browser reads the exact binary bytes, so archives, documents, fonts, executables, and media are supported.
No registration, watermark, queue, or server upload is required.
Use Base64 wisely
Base64 is ideal for text-only APIs, small embedded assets, test fixtures, and portable documents. It increases payload size, so external files are usually better for large public assets.
Frequently asked questions
What file types are supported?
Any local file the browser can read — images, PDFs, archives, fonts, audio, video, and binary executables up to 100 MB.
Is the exact binary content preserved?
Yes. The tool reads raw bytes and encodes them without modification, so the Base64 can recreate the original file.
When should I use Base64 for any file?
Use it when a text-only channel or API must carry binary data, or when a small any file asset needs to live inside a self-contained document. Prefer separate files for large, cacheable public assets.