Base64 Converter
This base64 converter encodes text to Base64 and decodes it back, switching direction with one control. It runs entirely in your browser, so results are instant and nothing you enter is uploaded.
Your input is processed locally in your browser and is not uploaded or stored.
What this tool does
Representing binary data as ASCII text using a 64-character alphabet. This base64 converter is free, works on desktop and mobile, and requires no sign-up.
Also useful for: 4 to base 64, arraybuffer to base 64, ascii to base 64, base 10 to base 64, base 10 to base 64 converter, base 16 to base 64, base 16 to base 64 converter, base 2 to base 64.
Features
- Handles base64 converter with instant, in-browser results
- No account, no upload and no usage limits
- Copy or download results in one click
How to use it
- Enter your input for the base64 converter
- Read the result as it updates
- Copy or download what you need
Common uses
- Everyday base64 converter work
- Quick checks while coding or writing
- Learning how the format behaves
Good to know
- For very large inputs, processing speed depends on your device
Related standards and concepts: RFC 4648.
Frequently asked questions
Is the base64 converter free to use?
Yes. Every tool on the site is free, needs no account and has no usage limits.
Is my data uploaded anywhere?
No. The tool runs entirely in your browser, so your input never leaves your device.