Free Online Image Tools — No Upload Required

Choose a tool below

Image Compressor

Compress JPEG, PNG, WebP images. Adjust quality and format — all processing happens locally in your browser.

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Image Watermark

Add text or image watermarks to your photos. Batch process multiple images and download as a ZIP file — entirely in your browser.

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Batch Compressor

Compress and resize many images at once and save results straight back into a local folder (Chrome/Edge/Opera) or as a ZIP. Fully in your browser.

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Why use an in-browser image tool?

Every tool on this page runs entirely inside your browser using WebAssembly — your images never leave the device. That makes it ideal for quick, one-off edits when you don't want to install desktop software or upload photos to a cloud server. Pick a format, tune the quality, and download the result in seconds.

Need to process hundreds of images every week? The Windows desktop app adds batch compression, 9-format conversion, bulk renaming and multi-key rotation on top of the same engine.

Common use cases

  • WebP for the web — shrink product and blog images so pages load faster and rank better.
  • Watermarked galleries — protect portfolio or store photos before sharing them publicly.
  • Quick social resizing — compress a batch for email or social without opening Photoshop.

Frequently asked questions

Are my images uploaded to a server?

No. All compression and watermarking run locally in your browser via WebAssembly and the Canvas API. Files never leave your device.

What formats are supported?

Input: JPEG, PNG, WebP, AVIF, GIF, BMP, TIFF. Output: JPEG, PNG, WebP.

Is there a file size limit?

No upload limit — the only constraint is your browser's available memory.

Is it really free?

Yes. No account, no watermarks, no usage caps. The tools are open source and run entirely in your browser.