Image to Base64 Converter

Encode images to Base64 strings or decode Base64 back to images — instantly in your browser. No uploads, completely private.

Two-way conversion
No uploads
100% Free
Upload Images

Drag & Drop Images

or click to browse multiple files

Encoding Results
Paste Base64 String(s)

How It Works

Three simple steps to get started

1
Upload or Paste

Upload images to encode, or paste a Base64 string to decode back to an image.

2
Choose Format

Select output format (JPG, PNG, WebP) and quality settings for encoding.

3
Copy or Download

Copy the Base64 string to clipboard or download decoded images instantly.

Instant
Local Processing
2-Way
Encode & Decode
Free
No Sign-Up
Private
No Server Upload

Why Use This Tool?

Built for quality, speed, and privacy

100% Private

All encoding and decoding happens in your browser. No uploads to any server ever.

Batch Processing

Encode multiple images at once. Perfect for preparing web assets efficiently.

Two-Way Conversion

Encode images to Base64, or decode Base64 strings back to downloadable images.

Ready-to-use Output

Get data URI strings ready to paste directly into CSS, HTML, or JSON payloads.

Instant Results

No server round trips — encoding and decoding completes in milliseconds.

Completely Free

No sign-up, no limits, no watermarks. Use as many times as you need.

Frequently Asked Questions

Base64 converts binary image data into ASCII text, allowing images to be embedded in HTML, CSS, or JSON without separate files or HTTP requests.
Use Base64 for small images like icons or logos under 10KB. For larger images, traditional hosting with caching is more efficient.
Yes — Base64 encoding increases file size by approximately 33%. This tradeoff is worth it for small images where removing the HTTP request saves more time.
Yes. All processing is done in your browser using JavaScript. Your images never leave your device.
You can encode JPG, PNG, WebP, and GIF images. Output Base64 strings include the proper data URI prefix for immediate use.
Yes. Paste multiple Base64 strings separately and decode them all — each result is displayed and downloadable individually.

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