Encode text or files into Base64 with optional URL-safe / chunked output.
Use a Base64 Encoder Online to turn any text, file, or web URL into Base64 format in seconds. Whether you’re working with plain text, binary files, or remote content, this tool handles it all. You can also choose URL-safe encoding, remove padding, or split the output into 76‑character chunks. Need to share encoded data? There are no signups or limits; you may copy it with a single click or download it as a . b64. txt file.
Based on the tool’s interface, here’s what you can do:
Text input area — Type or paste your content directly into the editor with line numbers and word wrap support.
File upload — Click the File button to upload any file from your device for automatic encoding.
URL fetch — Enter a web address, and the tool will fetch the content and encode it.
Sample text — Load a pre‑filled example with one click to see how encoding works.
Paste from clipboard — Insert text from your clipboard without manual typing.
Clear input — Remove all content from the editor with a single button.
URL-safe encoding — Replace + with - and / with _ to create base64url output.
Omit padding — Remove trailing = characters from the final encoded string.
Chunked output — Split the result into lines of 76 characters for easier reading or transmission.
Copy result — Copy the encoded output to your clipboard instantly.
Download result — Save the Base64 output as a .b64.txt file to your device.
Adjustable font size — Increase or decrease the editor text size for comfortable reading.
Follow these simple steps to encode your data:
Type text, upload a file, or fetch a URL into the input panel.
Check URL-safe, omit padding, or chunk output as needed.
The tool processes your input and shows the Base64 result.
Use the Copy button to save to clipboard or Download to get a .b64.txt file.
That’s it. You can also use the Sample button to test the tool instantly.
— Accepts plain text, file uploads, and remote URLs all in one place.
Grab the encoded result with the Copy icon or save it as a downloadable file.
No ads, no signups, no hidden limits — just encode and go.
Toggle URL-safe mode, remove padding, or enable chunked output with checkboxes.
The tool automatically re‑encodes when you type or change settings.
Use chunked output when your Base64 string needs to be pasted into emails or code blocks — it keeps lines readable.
Enable URL‑safe mode if you’re building a web app, so the encoded string can be used in URLs without issues.
The tool automatically re‑encodes when you change options — no need to click Encode again after toggling settings.
Base64 transforms binary data into a text‑based format using a 64‑character alphabet. The result you see here is a direct representation of your input’s raw bytes — each character corresponds to 6 bits of data. If you enable URL‑safe mode, the output becomes compatible with web URLs and filenames. Chunking splits the result into 76‑character lines, making it easier to embed in emails or code. Behind the scenes, the program manages all of this conversion; all you have to do is pick your alternatives and click Encode.
It’s a web tool that converts text, files, or URLs into Base64 encoded format.
Click the File button, select your file, and the tool automatically encodes it and displays the result.
It replaces + with - and / with _ so the output can be safely used in URLs and filenames.
Yes — check the “Omit padding (=)” box, and the tool will strip all trailing = characters.
It splits the Base64 string into lines of 76 characters each, which is useful for embedding in emails or code.
Click the Download button or the download icon in the output panel to save it as a .b64.txt file.
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