How to use Base64 on Toolbo
Encode and decode Base64 for text and images — UTF-8, emoji, and data URIs supported.
What Base64 on Toolbo does
Convert text to Base64 and back, with full UTF-8 and emoji support. Image mode uploads a file to get a data URI, or paste a data URI to preview the image. All processing happens in your browser.
Step by step
Text tab: choose Encode, Decode, or Auto-detect, paste input, and run conversion. Enable URL-safe for JWT-friendly output. Image tab: upload a file for a data URI, or paste a data URI in the preview field to see the image.
Key features
Core capabilities:
- Encode — text to Base64 with UTF-8 support
- Decode — clear errors for invalid input
- Auto-detect — picks encode or decode automatically
- Images — upload or preview via data URI
When to use it
Handy for JWT payloads, turning binary into text, building data URIs for HTML/CSS, or debugging Base64 values from APIs.