Image ↔ Base64

Client

Upload an image to get Base64, or paste Base64 to preview—complements data URL and JSON Base64 preview tools.

About Image ↔ Base64

Encode PNG/JPEG/GIF/WebP to Base64 or preview pasted Base64—local encode/decode without upload. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

Encode images to raw Base64 or paste Base64 to preview—without building a full data URL. Processing stays in your browser.

Nearby workflows on Toolcore

  • Data URL encoder & decoder — Build data: URLs from UTF-8 text or small files; decode and preview images or text locally. after you export or copy from the media workspace.
  • Base64 & URL encoder — UTF-8 Base64 encode/decode and URL component encode/decode in one workspace—paste, transform, copy. after you export or copy from the media workspace.
  • Base64 in JSON — Find string fields that look like Base64 and preview UTF-8 decoded text—local only. after you export or copy from the media workspace.
  • Image resize — Max width or height, keep aspect ratio, export WebP/JPEG/PNG—local only. after you export or copy from the media workspace.

Common use cases

  • Embed a small icon as Base64 in HTML email or inline CSS after checking size.
  • Verify a Base64 blob copied from logs or an API response.
  • Generate raw Base64 without wrapping it in a data URL prefix.

Common mistakes to avoid

  • Encoding large photos

    Big images inflate memory and clipboard size—resize first or use file URLs.

  • Confusing with data URLs

    This page focuses on raw Base64; use the data URL tool when you need the full data: prefix.

FAQ

Is my image uploaded?

No. Encoding and preview use browser APIs on your device.

Which formats are supported?

PNG, JPEG, GIF, and WebP for upload and magic-byte detection.

Can I decode SVG Base64?

Detection targets raster formats; SVG text may not preview reliably here.

More tools

Related utilities you can open in another tab—mostly client-side.