Encoding Tools
Explore free online developer tools in this category—formatters, converters, generators, and more. Open any card to use the tool in your browser.
8 tools available
- Base64 Encoder OnlineFree online Base64 encoder that turns plain text into ASCII-safe strings for APIs, headers, and transport.
- Base64 Decoder OnlineFree online Base64 decoder that restores plain text and helps inspect encoded API or token payloads.
- File to Base64 Encoder OnlineFree online encoder that reads small files and outputs Base64 for data URLs, tests, and API mocks.
- Base64URL Encoder OnlineFree online Base64URL encoder for JWT segments and tokens that must stay safe inside URLs.
- Base64URL Decoder OnlineFree online Base64URL decoder that reads JWT headers and payloads without extra padding hassle.
- Image to Base64 Data URL Encoder OnlineFree online image encoder that outputs data URLs for tiny assets in HTML, CSS, or email prototypes.
- Text to ASCII Codes Converter OnlineFree online encoding inspector that lists decimal ASCII codes per character for debugging strings.
- ASCII Codes to Text Converter OnlineFree online translator that decodes space-separated ASCII numbers back into readable text.