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URL Encode & Decode
Percent-encode text for URLs and query strings, or decode %20-style URLs back to text.
How it works
Base64 Encode & Decode
Turn text or a file into Base64, or turn Base64 back into text. Emoji and accented letters survive the round trip, and URL-safe Base64 works both ways.
Paste or type to begin. Everything runs in your browser.
- 01
Choose Encode or Decode, then paste your text or Base64. The result updates as you type.
- 02
To encode an image or other file, click Encode a file. Tick data: URL to get a string you can paste into CSS or an <img> tag.
- 03
Copy the result or download it as a file.
Good to know
- Base64 is an encoding, not encryption. Anyone can decode it, so don't use it to hide passwords or keys.
- Encoded output is about a third larger than the input: every 3 bytes become 4 characters.
- Decoding accepts standard or URL-safe Base64, with or without = padding, line breaks or a data: prefix.
FAQ
Frequently asked questions
What's URL-safe Base64?
The same encoding with - and _ in place of + and /, and usually no = padding, so it can sit in a URL or filename without escaping. JWTs use it.
Why does decoding say it's binary data?
The Base64 holds a file, such as an image or PDF, rather than text, so there's nothing readable to show. Decode it with a tool that saves bytes to a file.
Is my text sent anywhere?
No. Encoding and decoding run in this tab with your browser's built-in functions.
Missing something?
Tell us the tool you wish existed.
Describe the job and the file types involved. The most requested tools get built first.