Compress Images Online

Make photos smaller without a visible quality drop.

Runs in your browser. Nothing is uploaded.

Make images or PDFs smaller.

Drop your files here HEIC, JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, SVG and ICO, and PDFs or paste with Ctrl+V
    PDF
    JPG · PNG · WebP · Text · Word
    Word
    PDF · Text
    Convert to

    Your files are processed by your own browser and never sent to a server. You can check: open your browser's network tab, convert a file, and you will not see an upload. The site also works with your connection turned off once the page has loaded.

    How it works

    1. Drop in JPG, PNG, WebP or HEIC files, as many as you like.
    2. Choose a quality. Around 80% is usually indistinguishable from the original.
    3. Leave the format on Auto and each image is encoded every way and kept at whichever came out smallest.
    4. Check the saving on each row, then download.

    About this tool

    Shrink JPG, PNG and WebP files so they fit an upload limit or load faster on a website, with a quality slider and a live preview of the size you will actually get. Runs entirely in your browser, so nothing is uploaded.

    How much quality can I lose before it shows?

    For photographs, 80% is the usual sweet spot: files land at roughly a fifth of their original size and the difference is invisible at normal viewing size. Below about 60% you start to see blocking in smooth areas like skies and skin. Screenshots and images with flat colour or text behave differently, they suffer badly under JPEG at any quality, and are far better served by WebP or PNG, which is exactly what Auto is for.

    Why does Auto sometimes pick a different format?

    Because guessing from the input format gets it wrong often enough to matter. A PNG screenshot can shrink by 90% as WebP, while a photograph that arrived as PNG is usually smallest as JPEG. Rather than assume, the tool encodes your image every way your browser supports and keeps whichever file came out smallest. That costs a moment of processing on your own machine and nothing else.

    Does compressing twice make it smaller again?

    No. It makes it worse. JPEG and WebP are lossy, so each pass throws away detail that cannot come back, and re-compressing an already-compressed file mostly adds artefacts rather than saving space. Always compress once, from the original.

    Other tools

    Last updated August 2026

    Privacy

    Your files are never uploaded

    Every conversion happens inside your browser, on your own device. No server receives your file, so there is nothing for anyone to store, sell, lose in a breach, or be compelled to hand over. You can check: open your browser’s Network tab and convert something, there is no upload. The site also keeps working with your connection switched off.

    We collect nothing about you

    There are no accounts, no sign-up and no contact form. We do not ask for your name or your email address, and there is no database here holding anything about you.

    What is stored on your device

    Only preferences, such as the output format you last chose. That stays in your browser, is readable only by this site, and is removed if you clear site data.

    Hosting

    The site is served by Cloudflare Pages, which processes the technical information every browser sends with a request, an IP address and user agent, to serve pages and block abuse. That applies to page requests only. Your files are never part of a request.

    Analytics and advertising

    There is no analytics. The site carries advertising from Google AdSense to cover the cost of the domain. Google may set cookies or read a device identifier to choose and measure those ads, and you can review or change what it does at myadcenter.google.com and policies.google.com/technologies/ads. Advertising can never see your files, because your files never leave your device: the ad is a separate part of the page with no access to what you convert.

    Your choice about advertising

    If you are in the European Economic Area, the United Kingdom or Switzerland, you are asked before anything is stored on your device for advertising, and nothing is set until you answer. The message has three buttons and refusing is one of them, on the first screen, in one click, exactly like accepting. Refusing does not put the tools behind a wall and does not remove the advertising; it means the ads you see are chosen without a profile of you. You can change your answer whenever you like using the button at the end of this page, or by clearing this site’s data, which makes the message appear again. What Google does across all sites can be reviewed at myadcenter.google.com. None of this touches your files, which never leave your device to be seen by anyone, consenting or not.

    Getting in touch

    Write to leniv.tech@gmail.com. That address reaches one person. There is no support desk, no ticketing system and no newsletter to be added to, and your message is not stored anywhere other than that inbox.

    Terms

    Free to use

    For personal and commercial work alike, with no account and no watermark. Please do not try to disrupt the site or interfere with how it works for other people.

    Your files stay yours

    They never reach us, so we claim no rights over them and hold no copy of them.

    No warranty

    The tools are provided as they are. Conversion can fail on unusual or damaged files, and converting between formats can lose quality or detail, compressing a PDF, for instance, turns its text into part of an image. Keep your originals, and do not rely on this as the only copy of anything that matters. We are not liable for any loss arising from using the site.

    Changes

    These terms may change. The date above shows when they last did.