FirstClickTools

Last updated: August 2, 2026

Free Online Base64 Converter

Image to Base64 Converter

Convert images to Base64 data URLs instantly — perfect for CSS, HTML, and APIs.

Upload Images

JPG, PNG, WebP, GIF formats. Max 10MB per file.

Image to Base64 – Encode Instantly in Your Browser

Need an image as pure text? Our image to base64 converter turns any PNG, JPEG, WebP, GIF, BMP, or AVIF file into a clean data URL right in your browser — no uploads, no signup, no limits.

Web developers embed base64 images in CSS and HTML to cut HTTP requests, and API developers pass them through JSON payloads every day. With one-click copy, .txt download, and support for files up to 10MB, this tool is built for exactly that workflow.

How to Convert an Image to Base64

Encode your image in 3 simple steps.

1

Upload Your Image

Upload an image up to 10MB. Drag & drop is supported.

2

Instant Encoding

Your image becomes a base64 data URL right in the browser.

3

Copy & Use

Copy the string with one click or download it as a .txt file.

Why Use Our Image to Base64 Converter?

Secure

Encoding stays on your device.

100% Free

No sign-ups, limits, or watermarks.

One-Click Copy

Clipboard-ready base64 strings.

All Formats

PNG, JPEG, WebP, GIF, BMP, AVIF.

Up to 10MB

Encode large files without limits.

Mobile Friendly

Works on all devices and browsers.

Frequently Asked Questions

Common questions about image to base64 encoding

What is base64?

Base64 is a text representation of binary data. A base64-encoded image becomes a long string of characters wrapped in a data URL like data:image/png;base64,iVBORw0KGgo..., which any browser or application can decode back into the original image.

Why convert an image to base64?

Encoding an image as base64 lets you embed it directly in HTML, CSS, or JSON — no separate file to host and no extra HTTP request. It is the standard way to pass images through APIs, databases, and code.

How do I use the data URL?

Paste it into an <img> src attribute, a CSS background-image, or a JSON payload, and the image renders instantly. You can copy the string with one click or download it as a .txt file for later use.

Is it secure?

Your privacy is our priority. All encoding happens locally in your browser — your images are never uploaded to our servers, so they never leave your device.