Image to Base64 / Data URI converter

Image tools

Convert both ways: upload an image to get its data URI, raw Base64, and <img> / CSS snippets, or paste a data URI to preview and download it. Everything runs in your browser; your images are never uploaded.

What is this image to Base64 converter?

A free, browser-based tool that converts both ways between an image file and a Base64 / data: URI. Upload an image to get its data URI and raw Base64 string, plus ready-to-paste <img> and CSS background snippets — or paste a data URI to preview and download the decoded image. All processing happens locally in your browser, so your images are never uploaded.

How to use it

  1. Pick a direction: “Image → Base64” or “Base64 → Image”.
  2. Image → Base64: upload an image, then copy the data URI, raw Base64, <img> tag, or CSS background snippet.
  3. Base64 → Image: paste a data: URI to preview the decoded image and download it as a file.

Common use cases

  • Inlining a small icon or logo into HTML/CSS to avoid an extra HTTP request.
  • Embedding an image directly into an email template or a JSON payload.
  • Decoding a data URI you found in source code back into an actual image file.

Related image tools

Operated by

unbounded pioneering inc
Timothe AI

Tools by Timothe AI is a suite of free tools built and operated by unbounded pioneering inc, the company behind Timothe AI.

Ryosuke Suzuki
Ryosuke SuzukiFounder & CEO

Founder & CEO of Unbounded Pioneering Inc., the company behind Timothe AI, and an expert in machine learning and AI product development. He began his career in machine learning research at a university laboratory, then designed and built large-scale products as a software engineer at PLAID, Rakuten, and Recruit, while also driving new business development. Now specializing in generative AI and AI products, he works across both engineering and business development, and is a named inventor on multiple granted patents in web technology.

Named inventor on granted patents JP6887648 & JP7480958 · Patent pending on Timothe AI technology

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