Base64 Encoder / Decoder
Encode text to Base64 or decode it back — Unicode safe.
How to use Base64 Encoder / Decoder
follow along with the steps below
1Open the tool on this page and add text.
2Adjust the options if you need to. Results update right on the page.
3Copy or download Base64 or decoded text. Nothing is uploaded, so you can repeat as often as you like.
About Base64 Encoder / Decoder
Base64 Encoder / Decoder is a free online tool from Supreme Pro. Encode text to Base64 or decode it back — Unicode safe. It runs in your browser, so there is nothing to install and no account to create. Developer utilities are most useful when they are fast and private, so everything runs locally.
Common uses
- Format, encode or inspect data while you code and debug
- Create values such as colors and shadows without leaving the page
- Test small ideas quickly before putting them in a project
Tips for best results
- Never paste secrets or production credentials into any online tool
- Validate the output in your own environment before you ship it
- Use the copy button to avoid typing mistakes
Features
- Lets you encode or decode text as Base64
- Free to use, no account or sign-up
- Private — runs entirely in your browser
- Works on phones, tablets and computers
Practical tips
Base64 turns data into plain text characters so it can travel through systems that only handle text, such as emails or JSON. It is encoding, not encryption: anyone can decode it, so never use it to hide passwords or private data. When a decode fails, check for missing padding characters or extra spaces.
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Quick answers about using Base64 Encoder / Decoder.
What is the Base64 Encoder / Decoder?
The Base64 Encoder / Decoder is a free online tool from Supreme Pro. Encode text to Base64 or decode it back — Unicode safe. You can use it to encode or decode text as Base64.
How do I use the Base64 Encoder / Decoder?
Open this page, add text in the tool above, adjust any options you want and read or download Base64 or decoded text. Everything happens on the same page, so there is nothing to install.
Is the Base64 Encoder / Decoder free?
Yes. The Base64 Encoder / Decoder is free to use and does not need an account or sign-up.
Is my data safe when I use the Base64 Encoder / Decoder?
Yes. The tool runs in your browser, so anything you add — such as text — is processed on your own device rather than being sent to our servers.
Does the Base64 Encoder / Decoder work on mobile phones?
Yes. The page is responsive and works in modern browsers on phones, tablets and computers.
Can I use the Base64 Encoder / Decoder offline?
Once you have opened this page, your browser can often reload it without a connection because Supreme Pro saves its core files for offline use. Open it once while online first.
Is there a limit on how much text I can use?
There is no fixed limit, but very large texts depend on the memory of your device and browser.
Is Base64 secure?
No. It is only a way to represent data. Anyone can reverse it instantly.
Why does the encoded text look longer?
Base64 output is roughly a third larger than the original data.
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