Developer tools
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
Base64 Encoder / Decoder helps with quick debugging, API data cleanup, format checks, and small code or config tasks without opening an IDE or installing a package.
How to use it
For Base64 Encoder / Decoder, paste the text, code, or configuration into the input area, choose the mode you need, and run it. For large data, test a small sample first.
How to read the result
After using Base64 Encoder / Decoder, the output is kept copy-friendly for docs, code, and config files. When validation is available, fix the reported error location before trusting the final output.
Privacy and limits
When using Base64 Encoder / Decoder, most processing happens in the browser. Do not paste passwords, private keys, tokens, or unmasked production data into any online tool.
For Base64 Encoder / Decoder: Developer tools are for quick inspection and conversion. They do not replace tests, linting, security review, or version control.
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.