Image Compressor
Resize and re-encode JPEG/PNG/WebP in your browser with LocalKit. Canvas processing stays on-device—no upload.
Interactive controls load with JavaScript. Processing stays in your browser—nothing is uploaded.
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How to use
- Open the tool — Open this LocalKit page on www.908885.com and wait for the interactive controls to load (JavaScript required).
- Provide input — Paste or type your content, or adjust options. Everything stays in this browser tab—LocalKit does not upload tool payloads.
- Run the action — Use the primary button, or rely on live controls that update as you type, to generate the result.
- Copy or download — Copy the output into your editor, terminal, or documents—or download when the tool offers a file export.
Limits
~30MB input; browser encode support varies for WebP.
When to use
Shrinking images before attaching them—without uploading to a compressor site.
When not to use
Batch server pipelines or RAW/video conversion.
Privacy note
Pixels are processed on-device via Canvas.
FAQ（5）
Is my image uploaded?
No. Resize and re-encode use Canvas in your browser. LocalKit processes this in your browser on www.908885.com—input is not uploaded to our servers for computation.
Which formats work?
JPEG, PNG, and WebP when the browser can encode WebP. If WebP export is missing, try another browser or output JPEG/PNG instead.
Why is quality disabled for PNG?
PNG output is lossless; the quality slider applies to lossy formats such as JPEG/WebP. Use max width/height to shrink PNG weight via dimensions.
What happens to transparency on JPEG?
Alpha is flattened onto a solid background because JPEG has no alpha channel. Keep PNG/WebP when you need transparency.
Any size limit?
About 30MB input is a practical guide, and canvas dimensions are capped near browser limits—device memory may force lower ceilings.