Production utility · Compression / Base64

Image Optimizer

Prepare publication-ready images. Compare original and optimized quality, fit a complete Base64 data URI to a size budget, and copy the exact output into a scrolloom™ image source.

Client-side · JPEG / WebP

01 · Image & settings

Source

Drop or choose an imagePNG · JPEG · WebP · other browser-supported formats

No image selected.

Or import from an existing Base64 string

Accepts a complete image data URI or raw JPEG / PNG / WebP Base64. Processed only in this browser.

Compression

Output format

Longest side (px)

Visual quality 85%Higher values usually preserve more detail at a larger size.

Base64 budget (KiB)

Print width (mm)

Transparency → background

Used when outputting JPEG / WebP

Auto-fit prioritizes resolution, then searches for a quality setting under the Base64 ceiling. The budget is configurable; it is not a guaranteed platform limit.

02 · Visual comparison

Original ↔ optimized

Original—No image

Optimized—No output

Full Base64 URI—Target: 600 KiB

File reduction—Print density: —

ORIGINAL—

Upload an image to inspect it.

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TARGET / OPTIMIZED—

Your optimized image appears here.

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Zoom100%

No output

Nothing has been uploaded. All image processing and Base64 generation happen locally in your browser.

Privacy: images and Base64 content remain in the browser; this tool does not send files to a server. Publishing: Base64 increases encoded payload size by approximately one-third. For large covers and production assets, consider private object storage instead of embedding every image inline. Quality: always inspect small labels and line details at full size.