Text & Developer Tools
Free Base64 Encoder & Decoder
Turn readable text into Base64, or change Base64 back to text. Paste below and choose an action.
Private by default — your text stays on your device.
Up to 500,000 characters.
Select or copy the result when it's ready.
How it works
Enter readable text and choose Encode to Base64. To reverse it, paste standard Base64 and choose Decode to text. The tool supports Unicode text, including accented characters and emoji. It handles text rather than binary files.
Private, but not secret
Your text stays in your browser and is not uploaded or saved. Base64 is an encoding format, not encryption: anyone with the encoded text can decode it. Do not use Base64 alone to protect confidential information.
Frequently asked questions
Can it decode files?
No. This version decodes Base64 that represents readable UTF-8 text. It does not process binary files or data URLs.
Does Base64 hide my information?
No. Base64 can be reversed by anyone. Use proper encryption when information must stay secret.
Is my text sent anywhere?
No. Encoding and decoding happen in your browser, and the text is cleared from the page when you leave.