Free Online Tool

Image to Base64 Converter — Free & Private

Encode any image as a Base64 data URI for inline embedding in HTML, CSS, or JSON. Copy the result with one click.

About the Image to Base64 Converter

The Image to Base64 Converter is a free, browser-based tool from Quenavo. Encode any image as a Base64 data URI for inline embedding in HTML, CSS, or JSON. Copy the result with one click. Everything happens locally in your browser: the file you choose is read by JavaScript on your own device, processed in memory, and handed straight back to you — nothing is ever uploaded to a server.

Because Quenavo runs entirely in your browser, the image to base64 converter works the same on Windows, macOS, Linux, ChromeOS, Android, and iOS. There is nothing to install, no account to create, and no watermark on your results. Enable JavaScript to use the tool interactively.

Key Features

  • 100% free, forever: no subscriptions, trials, or paywalls — every feature of the Image to Base64 Converter is available to everyone at no cost.
  • Private by design: files are processed with in-browser JavaScript and are never uploaded, stored, or logged.
  • Instant processing: modern browser APIs handle your file in seconds, with no server round-trips or upload queues.
  • No installation: the Image to Base64 Converter is always ready in a browser tab — no downloads, licenses, or updates.
  • Works everywhere: a mobile-first interface that works on phones, tablets, laptops, and desktops.
  • No limits or watermarks: process as many files as you like; your results are clean and yours alone.

How to Use the Image to Base64 Converter

  1. Open the Image to Base64 Converter — it loads in under a second, with no sign-up required.
  2. Add your file by dragging it into the upload area or clicking to browse your device.
  3. Adjust the available options to match exactly what you need, with a live preview where supported.
  4. Run the tool and download your result with one click — then process another, with no limits.

Your Privacy Comes First

Quenavo was built around one principle: your files are your business. The Image to Base64 Converter processes everything with client-side JavaScript inside your browser. Your files are never uploaded, never stored on a server, and never seen by anyone — including us. When you close the tab, nothing remains anywhere except the file you downloaded. Read more in our Privacy Policy.

FAQ

Frequently Asked Questions

Is the Image to Base64 Converter really free?
Yes — completely. The Image to Base64 Converter is free with no hidden fees, no sign-up requirement, no watermarks, and no daily usage limits.
Are my files uploaded to a server?
No. This tool runs entirely inside your web browser using modern JavaScript. Your files are processed locally on your own device and are never transmitted to Quenavo or any third party.
Do I need to install any software?
No installation is required. The Image to Base64 Converter works in any modern browser — Chrome, Firefox, Edge, or Safari — on Windows, macOS, Linux, Android, and iOS.
Can I use the Image to Base64 Converter on my phone?
Absolutely. The interface is mobile-first and touch-friendly, so the Image to Base64 Converter works smoothly on smartphones and tablets as well as on desktop computers.