Base64 Encoder
An encoding and decoding tool for converting strings and images to and from Base64 format, with data URI scheme output support. It features one-click toggling between encode and decode modes for fast workflows. Widely used by web developers embedding images in HTML/CSS, backend engineers handling API data payloads, and anyone working with binary-to-text encoding.
Practical Guide
Converters and validators for Base64, JWT, hashes, QR codes, URL encoding, and related formats. Helpful for API work, shareable data, and specification checks.
When this tool is useful
Base64 Encoder helps with common Encode & Convert tasks that require quick checking, conversion, or creation. It supports workflows such as Encode/decode strings to Base64, Image file Base64 conversion supported without forcing users to switch pages or apps.
Processing and privacy
Your input is processed in the browser and is not designed to be sent to a server just to use the tool. This makes it suitable for temporary checks, draft work, and pre-publication cleanup.
Workflow tip
After checking the result, use the related tools and same-category links near the bottom of the page to continue the surrounding task. Frequently used tools also appear in the Recently Used section.
Base64 Encoder Features
- Encode/decode strings to Base64
- Image file Base64 conversion supported
- One-click toggle between encode and decode
- Data URI scheme format output
How to Use
- 1Enter a string or upload an image to encode
- 2Select encode/decode direction
- 3Copy the converted result
FAQ
Related Tools
JWT Decoder
Parse and display JWT token headers and payloads.
Hash Generator
Generate MD5/SHA-1/SHA-256 hash values.
QR Code Generator
Generate QR codes from text or URLs. Resizable, PNG export.
Aspect Ratio Calculator
Calculate aspect ratio from width and height. Reverse resize calculation.