Free image compressor, background remover & file size reducer — private & in-browser.

100% CLIENT-SIDE · NOTHING UPLOADED
▣ Image Compressor
◐ Background Remove / Replace
⛁ File Compressor

Image Compressor

Shrink JPG / PNG / WebP. Resize, pick quality & format, see the savings, download.
Drop an image or click PNG · JPG · WebP — processed locally on your device

Background Remove / Replace

Cut out the subject with on-device AI, then keep it transparent or drop in a new background color, gradient, or image.
Drop an image or click The AI model (~a few MB) loads on first use, then runs offline in your browser

File Compressor

Gzip any file right in your browser. Great for logs, JSON, CSV, text and code. Nothing leaves your device.
Drop any file or click Compresses to a .gz file using native browser gzip
Note: already-compressed files (JPG, PNG, MP4, ZIP) won't shrink much — they're compressed already.

FAQ

Are my files uploaded to a server?

No. Every tool on this page runs entirely in your browser using client-side JavaScript. Your images and files are processed on your own device and never leave it.

How do I compress an image without losing quality?

Upload your image, choose WebP as the output format, and set quality between 70 and 85. That typically shrinks files by 40–80% with no visible quality loss — the live before/after preview shows exactly what you get.

How does the background remover work?

It runs an open-source AI segmentation model directly in your browser. The first use downloads the model (about 20 MB, then cached), after which removal takes a few seconds per image — no upload involved.

Can I remove an image background without a watermark?

Yes. The background remover adds no watermark and has no per-image limit or paywall. You get the full-resolution transparent PNG, free — because it runs on your own device, there's nothing to gate behind an account.

How do I reduce an image's file size without uploading it anywhere?

Use the image compressor above: drop in your photo, pick WebP, and set quality to 70–85 to cut the size by 40–80%. Everything runs in your browser, so the file is never uploaded — ideal for private, sensitive, or client images.

Is Ownova Tools really free?

Yes — no accounts, limits, or watermarks. Ownova Tools is built by Ownova, an AI automation agency, as a free utility for the community.