How can I reduce an image to under 200 KB?

Choose WebP or JPEG, reduce the longest edge to 1280 or 800 pixels and lower quality gradually. Check the resulting file size and preview after each change. There is no automatic target-size mode or guaranteed 200 KB result; detailed images may need smaller dimensions.

Why is the compressed image larger than the original?

An already optimized image can grow when re-encoded, particularly as PNG. Compare the before and after sizes and keep the original if it is smaller. PNG ignores the quality slider in many browsers; changing dimensions or using WebP can make a larger difference.

No. This is the browser encoder (quality 0.1–1). For expert WebP, MozJPEG or AVIF, Squoosh is the reference.

No. JPEG, PNG, WebP, sometimes AVIF/BMP. Animated GIF and SVG are out.

Is anything sent to a server?

No. The image is read and re-encoded in the tab.

(01) — TOOLS

Lighter images.

Cap the long edge, pick WebP or JPEG, set quality. The file stays in the tab. This is the browser canvas, not a full Squoosh.

At a glance

Lightweight image compression, free, in the browser.
WebP / JPEG / PNG, long edge 800–1920 px, quality 10–100%.
Canvas encoder, not Squoosh. Nothing is uploaded.
Nothing is sent to a server.

(02) — METHOD

Shrink, encode, download.

01 — Size

The long edge is capped (800, 1280, 1920 px, or unchanged). No upscaling.

02 — Format

WebP is usually lightest. JPEG for compatibility. PNG often ignores quality (lossless).

03 — Local

canvas.toBlob in the browser. Nothing is posted. Download the result.

(03) — FAQ

Short answers.

How can I reduce an image to under 200 KB?: Choose WebP or JPEG, reduce the longest edge to 1280 or 800 pixels and lower quality gradually. Check the resulting file size and preview after each change. There is no automatic target-size mode or guaranteed 200 KB result; detailed images may need smaller dimensions.
Why is the compressed image larger than the original?: An already optimized image can grow when re-encoded, particularly as PNG. Compare the before and after sizes and keep the original if it is smaller. PNG ignores the quality slider in many browsers; changing dimensions or using WebP can make a larger difference.
As good as Squoosh?: No. This is the browser encoder (quality 0.1–1). For expert WebP, MozJPEG or AVIF, Squoosh is the reference.
GIF, SVG, HEIC?: No. JPEG, PNG, WebP, sometimes AVIF/BMP. Animated GIF and SVG are out.
Is anything sent to a server?: No. The image is read and re-encoded in the tab.

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