Text to Base64 Converter Online: Free and Private Tool
Text to Base64 converts plain text into Base64, a text representation that uses A–Z, a–z, 0–9, +, and /. The encoding maps every 3 bytes to 4 characters, so output is about 33% larger. Choose whether to keep padding and whether to wrap long output at 64 columns for PEM or 76 for MIME. Copy the result for your next tool or code.
Text to Base64 is a browser-based converter that encodes text as Base64, a printable representation used when a system or document needs text represented with a limited set of characters. It helps you prepare a value to copy into code, documentation, a ticket, or another workflow. The tool starts with a worked example: “Hello, Base64!”.
Base64 encoding maps every 3 bytes of input to 4 characters from A–Z, a–z, 0–9, +, and /. As a result, the encoded data grows by about 33%. You can keep padding for standalone values or turn it off for tokens that must sit inside URLs. For long output, choose 64-column wrapping for PEM certificates or 76-column wrapping for MIME email.
Text is the input, and Base64 is the encoded output. Unlike ordinary text, Base64 represents data using a specific alphabet, making it useful when a destination expects a Base64 value. The padding and line-wrapping choices help prepare the output for different contexts without changing the purpose of the conversion.
The conversion runs entirely in your browser: your input is processed on your device and is not uploaded, stored, or sent to a server. After the page has loaded, the tool works offline because it has no server dependency. Text to Base64 is useful for developers and DevOps engineers who need to encode a text value and copy it into their next step.
Step 1: Paste the text you want to encode. The tool takes text as input and starts with a worked example: Hello, Base64!
Step 2: Choose whether to keep Base64 padding. Keep it for standalone values, or turn it off for tokens that must sit inside URLs.
Step 3: Set line wrapping if you need it. Use 64 columns for PEM certificates or 76 columns for MIME email.
Step 4: Review the encoded output. Base64 output is about 33% larger than the original data.
Step 5: Copy the Base64 result into your code, documentation, ticket, or the next tool in your workflow.
Use case: Move text data into a system that only accepts Base64. Encoding provides a copyable Base64 value for that workflow.
Use case: Check whether a Base64 value you were given matches the original text. Compare it with the result produced from that text.
Use case: Prepare text snippets for documentation, a ticket, or a commit message. The encoded value is ready to copy into your notes.
Use case: Sanity-check a conversion before pasting the result into code. Review the output and its padding or line-wrapping choices first.
Use case: Prepare long Base64 output for a PEM certificate or MIME email. Choose the corresponding 64- or 76-column wrapping width to make it easier to copy and paste.