Can I compress images for free?

Yes, it is completely free — no sign-up and no installation. Upload PNG, JPG, or WebP images and shrink them with a quality slider and an optional maximum dimension.

Are my images uploaded to a server?

No. Compression and zipping all happen inside your browser. Your images are never sent to or stored on a server, and the tool even works offline.

How much smaller will my files get?

For each image the tool shows the before and after byte size plus the savings percentage. Lower quality and a smaller max dimension produce smaller files; the exact savings depend on the source image.

Will lowering the quality hurt how my images look?

JPG and WebP are lossy, so lowering quality gradually reduces visual fidelity. For web use, 70–85% usually looks indistinguishable from the original. PNG is lossless, so its quality is preserved.

What is the max-dimension setting for?

It downscales the image so its longest edge fits within the pixels you set. Shrinking oversized photos for the web cuts file size dramatically without lowering quality. Leave it blank to keep the original resolution.

Can I compress multiple images at once?

Yes. Upload several images, compress them in one batch, and download the results together as a single ZIP file.

Image compressor

Image tools

Shrink PNG, JPG, and WebP images with a quality slider and an optional max dimension, see the savings, then download them all as a zip. Everything runs in your browser; your images are never uploaded.

What is this image compressor?

A free, browser-based tool that shrinks PNG, JPG, and WebP images. Upload one or many, set a quality level and an optional maximum dimension, and the tool re-encodes each image and reports the before/after size and the savings percentage. Download everything as a single ZIP. All processing happens locally in your browser, so your images are never uploaded.

How to use it

Upload one or more images on the left (drag & drop or click).
Set the quality slider for JPG / WebP output (PNG stays lossless).
Optionally set a max dimension to downscale oversized photos.
Press “Compress & download zip” to see the savings and get the ZIP.

Common use cases

Shrinking hero and product images so a landing page loads faster.
Compressing photos before attaching them to email or a form with a size limit.
Reducing image weight to improve Core Web Vitals (LCP) for SEO.

Is anything uploaded?

No. This tool is 100% frontend. Compression and zipping run entirely in your browser using the canvas API — your images are never sent to or stored on a server, and it even works offline.

Related image tools

FAQ

Operated by

Tools by Timothe AI is a suite of free tools built and operated by unbounded pioneering inc, the company behind Timothe AI.

Ryosuke SuzukiFounder & CEO

Founder & CEO of Unbounded Pioneering Inc., the company behind Timothe AI, and an expert in machine learning and AI product development. He began his career in machine learning research at a university laboratory, then designed and built large-scale products as a software engineer at PLAID, Rakuten, and Recruit, while also driving new business development. Now specializing in generative AI and AI products, he works across both engineering and business development, and is a named inventor on multiple granted patents in web technology.

Named inventor on granted patents JP6887648 & JP7480958 · Patent pending on Timothe AI technology

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