Image to Base64

Tool Overview

The Image to Base64 Converter lets you transform small images (under 300KB) into base64 strings or full data URIs with a single click. The process happens locally in your browser, making it ideal for embedding lightweight assets into JSON payloads, CSS files, or HTML templates without additional requests.

Supported Formats & Limits

• Allowed types: JPG, JPEG, PNG, GIF, BMP, ICO
• File size: Each image must be smaller than 300KB
• Offline friendly: No uploads or external APIs are required

These constraints ensure conversions stay fast, protect memory usage, and keep generated strings easy to manage.

How to Use

1. Drag and drop an image or click Choose Image to browse
2. Confirm the preview matches the expected asset and check file metadata
3. Copy the raw base64 string for APIs or the data URI for inline usage
4. Clear the workspace when finished to revoke any generated data

Practical Use Cases

• Design handoff: Deliver small icons or UI elements as inline assets
• Email templates: Embed imagery without hosting external files
• API prototyping: Populate fixtures or mocks that require base64 strings
• Documentation: Share examples that must remain self-contained

Tips for Best Results

• Compress the image before converting to stay within the 300KB limit
• Prefer PNG or SVG-to-PNG exports when clarity matters for small assets
• Remember that base64 increases file size by roughly 33%; keep assets minimal
• Consider caching policies when embedding assets in production code

FAQ

Why is there a 300KB limit?

Large base64 strings can bloat HTML or JSON payloads and slow down browsers. The limit keeps conversions focused on lightweight assets such as icons or small illustrations.

Can I convert multiple files at once?

The current version processes one image at a time so you can verify details and copy the output accurately.

What is the difference between the two outputs?

The raw base64 output contains only the encoded binary data. The data URI includes the MIME type prefix (for example data:image/png;base64,) and is ready to paste into HTML or CSS.

Is my image uploaded anywhere?

No. The entire conversion runs locally. Once you clear the tool or close the tab, the generated data disappears.