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PixTrimIO
Image encoding

Image to Base64

Encode images as Base64 strings for use in HTML or CSS.

Upload image

Choose a JPG, PNG, WebP, or similar file.

Preview and output

Review the source image and the Base64 text.

Input preview
No image selected yet.
Upload a JPG, PNG, or WebP image.
Base64 output
Base64 text will appear here.
Ready.

Actions

Copy, download, or reset the current Base64 text.

Upload a JPG, PNG, or WebP image.
Image to Base64 is useful for quick embeds, tests, and lightweight data handoffs.

PixTrimIO keeps PDF and image workflows fast, privacy-friendly, and browser-based. Privacy-first PDF and image tools that run entirely in your browser. Compress, merge, convert, crop, OCR, and edit files online for free without uploading.

Frequently asked questions

What is a Base64 image string used for?

Base64 image strings can be embedded directly in HTML (as <img src="data:...">), CSS (as background-image), or JSON payloads, eliminating the need for a separate image file.

Is my image uploaded?

No. Encoding runs entirely securely in your browser without uploading.

What formats are supported?

JPG, PNG, WebP, GIF, and most common image formats.

How to convert an image to Base64 online for free

Encode an image as a Base64 string for use in HTML, CSS, or JSON.

  1. Upload your image — Click or drag and drop the image file.
  2. Encode — The Base64 string is generated instantly securely in your browser without uploading.
  3. Copy — Copy the Base64 string and use it in your HTML, CSS, or JSON.
Related hubOpen IMAGE hub

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