Encoding

Image to Base64

Drag and drop an image — PNG, JPG, GIF, WebP, or SVG — and get a Base64 Data URL you can paste straight into CSS, HTML, JSON, or a quick prototype. Encoded in your browser, never uploaded.

Published March 8, 2024
Last reviewed June 28, 2026

Tool Summary Answer Block

This tool accepts structured input and returns deterministic output in the browser with no server upload.

Tool name: Image to Base64
Input intent: Provide source content to transform, validate, or analyze.
Output intent: Receive normalized output suitable for copy, reuse, or debugging.
Example input: logo.png (4 KB)
Example output: data:image/png;base64,iVBORw0KGgoAAAANSUhEUg...

Local processing / privacy notice

Inputs are processed in your browser session.
We do not send raw input/output values to our analytics endpoint.
Use reset/clear actions when working with confidential data.

Your image is read and encoded locally in your browser — it is never uploaded.

Drop an image here or click to browse

PNG, JPG, GIF, WebP, or SVG, up to 10 MB — encoded to a Data URL on your device.

Tool Introduction

Drag and drop an image — PNG, JPG, GIF, WebP, or SVG — and get a Base64 Data URL you can paste straight into CSS, HTML, JSON, or a quick prototype. Encoded in your browser, never uploaded.

Tool Overview

A Data URL packs an image's MIME type and its Base64-encoded bytes into a single string like data:image/png;base64,iVBORw0KGgo…. Because the image travels inline, you can embed it directly in a stylesheet, an HTML <img> tag, an email template, or a JSON payload without a separate file request. This tool reads your file with the browser's FileReader API and encodes it entirely on your device, so the image is never uploaded to a server. It shows the file name, MIME type, and size alongside the Data URL, and previews the result so you can confirm you picked the right file. Inlining is best for small assets — large images produce very long strings and are usually better served as normal files.

Use Cases

Inline a small icon or logo in CSS to avoid an extra HTTP request
Embed an image directly in an HTML email template
Drop an image into a JSON payload or API request body
Ship a single-file HTML demo or prototype with no external assets
Store a tiny image in a database column or config as text

Input/Output Examples

The MIME type and Base64 bytes are combined into one string.

Input Intent

logo.png (4 KB)

Output Intent

data:image/png;base64,iVBORw0KGgoAAAANSUhEUg...

Vector SVGs encode too — handy for inline CSS backgrounds.

Input Intent

icon.svg

Output Intent

data:image/svg+xml;base64,PHN2ZyB4bWxu...

FAQ

Is my image uploaded anywhere?+

No. The file is read and encoded locally with the browser FileReader API, so it never leaves your device.

How much bigger does the Base64 version get?+

Base64 adds roughly 33% to the file size, plus the data: prefix. That is why inlining suits small images; large ones are better delivered as ordinary files.

Can I get just the raw Base64 without the data: prefix?+

Yes. The output is the full Data URL by default; if you only need the raw Base64, delete everything up to and including the first comma.

Which image formats work?+

Any format your browser can read — PNG, JPG/JPEG, GIF, WebP, SVG, BMP, and more. The MIME type is detected from the file automatically.