CNV-01Converters
Base64 Encoder / Decoder
Encode and decode Base64
CNV-01Result
Your data never leaves your device: this tool runs locally in the browser.
Base64 Encoder / Decoder
Convert text to Base64 and back with full Unicode support (Cyrillic, emoji). Useful for debugging APIs, building data URIs and inspecting email attachments.
Frequently asked questions
Is Base64 encryption?
No, it's encoding. Anyone can decode Base64 — never use it to protect secrets.
Why does the data get bigger?
Base64 represents every 3 bytes as 4 characters, so size grows by about 33%.