About the Base64 Encoder / Decoder
The Base64 Encoder and Decoder converts data between its raw form and Base64, a text encoding that represents binary or text content using a safe set of characters. Developers reach for Base64 to embed images in HTML or CSS, transmit data through systems that only accept text, and inspect tokens or payloads. Paste your text to encode it, or paste a Base64 string to decode it back to the original.
All encoding and decoding runs in your browser, so whatever you process, including credentials or private payloads, is never uploaded anywhere. There is no account and no cost. The tool gives you an instant, two-way conversion that is perfect for debugging APIs, building data URIs, or simply understanding what an encoded string actually contains.
How to use it
- 1Choose whether you want to encode or decode.
- 2Paste your text or Base64 string into the input box.
- 3Run the conversion to get the result instantly.
- 4Check the output for the encoded or decoded value.
- 5Copy the result to use in your code or tool.
Key features
- Two-way encode and decode in one place
- Handles plain text input and output
- Useful for data URIs and API debugging
- Instant, in-browser conversion
- No data uploaded, fully private
Frequently asked questions
- What is Base64 used for?
- Base64 encodes binary or text data into a safe character set so it can be embedded in HTML, sent through text-only systems, or stored as a string.
- Can I both encode and decode here?
- Yes. The tool works in both directions, so you can turn text into Base64 or convert a Base64 string back to its original form.
- Does Base64 encrypt my data?
- No. Base64 is an encoding, not encryption. Anyone can decode it, so it should not be used to protect secrets.
- Is my input sent to a server?
- No. The conversion happens entirely in your browser, so your data stays on your device.