Convert TXT to Base64
Base64-encode any text file right in your browser — nothing is sent anywhere.
What happens when you convert TXT to Base64
Encodes your text as Base64, the standard way to carry arbitrary content through channels that only reliably handle plain ASCII. The text is read as UTF-8 first, so accented characters, symbols and emoji encode and decode correctly rather than being corrupted.
Good for
- Embedding content in a data URI, JSON payload or configuration value
- Passing text safely through email headers or legacy systems
- Preparing a value for an API that expects Base64 input
Worth knowing
- Base64 is an encoding, not encryption. Anyone can decode it instantly — never use it to protect anything.
- The encoded result is about a third larger than the input.
- Encoding happens on your device, so even sensitive text is never transmitted.
TXT to Base64, answered
How do I convert TXT to Base64?
Drop your TXT file into the box above (or click to browse), make sure Base64 is selected as the target format, press Convert, then download the result.
Is this TXT to Base64 converter really private?
Yes. The conversion runs entirely in your browser — your TXT file is never uploaded to any server, so nobody but you ever sees it.
Is converting TXT to Base64 free?
Completely free — no watermarks, no sign-up and no daily quota. Processing happens on your own device, so there are no server costs to pass on to you.
Can I convert multiple TXT files at once?
Yes — drop as many files as you like. Convert them individually or use "Convert all", then download everything as a single ZIP.