ToolStudioFree
Runs in browser · Zero file uploads

Client-side engine

Image to Base64

Encode an image to Base64 or a data URI on this device. Free. No account.

FileReader
ModeLocal sandbox
  • JPEG
  • PNG
  • WebP
  • GIF
  • SVG
  • 20 MB per image
  • About 50 megapixels

Workflow

How to use Image to Base64

Three steps. Your file is processed in this browser and is not uploaded by this tool.

  1. 01

    Choose an image.

    Choose an image.

  2. 02

    Copy the plain Base64 or the data URI.

    Copy the plain Base64 or the data URI.

  3. 03

    Paste it into HTML, CSS or JSON.

    Paste it into HTML, CSS or JSON.

Direct answers

Essential questions answered

Short answers for search and answer engines. Same facts as the FAQ.

How do I convert an image to Base64?

Choose an image, then copy the plain Base64 or the data URI. Encoding stays in the browser.

Is the image uploaded?

No. ToolStudio encodes the bytes on this device.

Which formats work?

JPEG, PNG, WebP, GIF and SVG, within the size limit.

Practical applications

Good for everyday workflows

  • Embed a tiny image in HTML or CSS

    Turn a JPEG, PNG, WebP, GIF or SVG into a Base64 string or data URI for HTML, CSS or JSON.

  • Paste a data URI into JSON

    Turn a JPEG, PNG, WebP, GIF or SVG into a Base64 string or data URI for HTML, CSS or JSON.

  • Encode a logo without uploading it

    Turn a JPEG, PNG, WebP, GIF or SVG into a Base64 string or data URI for HTML, CSS or JSON.

Got questions?

Frequently asked questions

Is image to Base64 free?

Yes. There is no account or paywall on ToolStudio.

Do I get a data URI?

Yes. You can copy plain Base64 or a full data URI.

Is my image uploaded?

No.

Pick a tool. Get it done.

Free browser utilities on ToolStudio. No account. Most tools keep files on this device.