Decode Base64 online: Fast, secure and free
Discover our online tool to encode and decode Base64/text instantly, without installations on your device.
Designed in a simple and intuitive way, it can be used by developers, students and data management professionals in general.
This programmer tool converts your encoded strings into readable text in real time. Of course, it also works the other way around, helping you convert any text you enter into base64 language; Simple, fast and secure! It's also free and allows you to encode and decode without registration and without us storing data.
Getting fast and secure Base64 encoding and decoding has never been easier!
Online Base64 decoder features
- Compatible with all types of encoded text. Converts text to Base64 and vice versa.
- Intuitive and easy to use interface. You just have to enter your text (by copying or writing at the moment) and the tool will decode base64 in real time, without configurations or extra steps.
- 100% secure. Your data is not stored or shared, everything runs in your browser.
- Convenient. It is a completely free resource without registrations. You enter, use it and leave (if you want).
How to use this decoding tool
Decode Base64
- Enter your encoded text (by writing or copying and pasting) in the first box called BASE64.
- Automatically, you will see that the corresponding textual information is being generated in the lower box.
- You can copy it by clicking on the icon of two small post-its or by making the selection with your mouse and pressing CTRL + C.
Encode to Base64
- Enter the original data (copying or writing) in the PLAIN TEXT box.
- In real time, you will get the character string already encoded in Base64.
- You can copy it and use it freely by clicking on the post-its icon or by selecting the text and pressing CTRL + C.
What is Base64 and what is it used for?
Base64 is an encoding system that transforms binary data (from any type of data, such as text, images, etc.) into its own language that uses ASCII text characters. The result is a text string that is generated by transforming binary language, which, in turn, is the translation of our original data.
Commonly, it is used for:
- Web developers: Encoding images or HTML fragments in Base64 to insert into source code (HTML or CSS) without the need for external files.
- Basic security: Encoding API keys or tokens to avoid interpretation errors.
- Send binary data: Through web forms (and currently also for APIs in JSON or XML).
- Encode information: To store it in a readable way for the system in question, avoiding compatibility problems.
- Education: Students learning about encoding and data transmission systems.
In this way, Base64 allows data to travel through channels where you can only work with text, such as emails or HTTP transmissions, for example.
It is important to note that, although the data is transformed, making it apparently illegible, Base64 does not encrypt or protect the information.
Start using the Base64 decoding tool now!
Don't wait any longer. Use our tool now to encode and decode Base64 immediately, for free and securely.
- Decode Base64 now
- Encode text to Base64
Works with plain text, HTML strings, JSON, XML, encoded images and more.
Frequently Asked Questions
It is the process by which a string encoded in Base64 is converted back to its original format, whether text, image, file, etc. With our decoding tool, for the moment, we will work with text. Also, you can also use it in reverse, to encode your ASCII text to base64.
Yes, as long as the string is correctly encoded in Base64 and does not contain format errors. If it is incorrect, as is logical, the decoding will be different. Try doing it on purpose by transforming any text and re-entering the B64 result obtained but changing some character!
While with Base64 we can work with any type of file or binary data: text, images, PDFs, audios, documents, etc. At the moment, our devtool translates from and to ASCII text. We will soon update its utility so you can work with other types of data!
No. Base64 is not an encryption system but an encoding system. It does not protect information, it only transforms it to facilitate its transmission or storage. It may be secure to the human eye, but nothing more; anyone else can decode your B64 text and obtain the starting information.
Yes, but be cautious. Although decoding itself is safe, if you don't know the origin of the string, you could be accessing malicious content.
No. Processing is done at the moment, only in your browser and in temporary sessions that are automatically and immediately deleted after use.
When encoding data in Base64, the size increases by approximately 33%. This is because it transforms binary data into readable text, which is more complex for the machine.
The three resources transform information differently. Base64 transforms binary data to text using 64 safe characters. Hexadecimal represents each byte as two characters (0-9, A-F), taking up more space. URL encoding transforms invalid web characters into percentage codes (%).
Of course! It's designed to work perfectly on any device thanks to its responsive design.