Base64 Encoder
Converts text into Base64, including URL-safe output. It is for test payloads, headers, data snippets, and quick encoding checks.
Runs in your browser. Input, settings, and results are not sent to Utilio servers.
Base64 Encoder
Local browser processing. Data stays on this device.
Result
Encoded
The string was encoded: 15 -> 28 characters.
What Base64 Encoder does
Use Base64 Encoder when you need to encode sample strings for API tests or documentation.
When to use it
- Encode sample strings for API tests or documentation.
- Create URL-safe Base64 values for experiments.
- Check how Unicode text appears after Base64 encoding.
How to use it
- Paste the text value.
- Enable URL-safe mode if the value goes into a URL.
- Copy the encoded output.
What to check
- Base64 is encoding, not encryption.
- Do not treat encoded secrets as protected data.
Data, formats, and limits
What stays on your device and what is sent
Runs in your browser. Input, settings, and results are not sent to Utilio servers.
Supported formats
This tool works with typed or generated values rather than uploaded files.
File limits and browser requirements
- Use an up-to-date browser and check the result on the device where you will use it.
Known limits
- This tool helps inspect or transform data, but it does not replace code review, security review, or production configuration checks.
- Do not paste real secrets, tokens, or private keys into data you are not prepared to expose in the browser.
Troubleshooting
- If validation fails, start with quotes, commas, brackets, whitespace, and input encoding.
- If the result is unexpectedly empty, check the tool mode and a minimal example without extra fields.
- Do not paste real tokens, passwords, or keys; use a test snippet with the same format for diagnosis.
Common questions
What does Utilio receive?
Runs in your browser. Input, settings, and results are not sent to Utilio servers.
What is it useful for?
Use it when you need to encode sample strings for API tests or documentation. Start by pasting the text value.
Do I need an account?
No. You can use this tool without creating an account.
Can I use it on a phone?
Yes. The tool works in a mobile browser, though longer input or detailed results may be easier to review on a larger screen.
How do I get a reliable result?
Paste the text value. Then enable URL-safe mode if the value goes into a URL. Base64 is encoding, not encryption.
Does Utilio use my input or results to train AI?
No. Utilio does not use files, pasted text, settings, generated values, or results from this tool to train AI models.