Base64 Encoder / Decoder
Instant two-way conversion for text and images
🔒 All data is processed in your browser. Nothing is uploaded to any server.
Quick guide
What can Base64 Encoder / Decoder help you do?
Free online Base64 encoder and decoder. Supports text and images. All processing happens in your browser.
Best for
Useful for quick file work, text cleanup, calculations, content creation, and website or AI checks.
How to use it
Open the tool, enter or upload what it asks for, then copy or download the result directly.
Privacy and limits
Most tools run in your browser with no sign-in. Very large files or older devices may hit browser memory limits.
Frequently Asked Questions
What is Base64?
A binary-to-text encoding used for emails, HTML data URIs, and API payloads.
Is my data uploaded?
No. All encoding/decoding happens in your browser.