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Compress Picture

Online tool — nothing to install, nothing uploaded

Compress pictures online — right in your browser

Reduce JPEG, PNG and WebP file size by up to 90% without installing anything. The compressor runs entirely in your browser — your pictures stay on your device.

No software download, no signup, no watermark. Works on any device with a modern browser — phone, tablet or desktop.

  • Works online
  • No install needed
  • No upload
  • 100% free
  • Batch up to 30
  • Works offline too

Drop pictures here, click to browse

JPG, PNG, WebP · up to 30 files at once · stays in your browser

photo.jpg2.4 MB412 KB−83%

Lower = smaller file. 75 is a safe default for photos.

Resizing the longest edge often shrinks files dramatically.

How to compress a picture online

Three steps — all inside your browser, no download or plugin required.

  1. Open the tool and add pictures

    No app to install — just open this page in any browser. Drag up to 30 images into the drop zone, tap to pick them from your device, or paste from the clipboard with Ctrl+V (⌘V on Mac). JPEG, PNG, WebP and AVIF are all accepted.

  2. Choose your quality

    The default quality of 75 cuts most photos by 60–80% with no visible difference. Move the slider lower for smaller files, higher for more detail. Optionally cap the longest edge to resize at the same time.

  3. Download the compressed pictures

    Compare original and result with the before/after slider. Save files one by one or download all at once. No watermark is added, no account is needed — bookmark the page and come back any time.

Why compress pictures online instead of desktop software

Nothing to install
Open a browser tab and start compressing. No download, no setup wizard, no disk space used. Chromebook, iPad, borrowed laptop — it works everywhere.
No upload to a server
Unlike most online compressors, this tool processes your files locally using the Canvas API. Your pictures never leave your device — no upload wait, no privacy risk.
No file-size limit
Because nothing is uploaded, there is no 2 MB or 10 MB cap. A 50 MB camera original compresses the same as a 500 KB thumbnail.
Always up to date
No version numbers, no update prompts. Every time you open the page you get the latest compressor — no action required.
Works on any device
Phone, tablet, laptop, desktop — any device with a modern browser can compress pictures. No platform-specific app to find and install.
Works offline after loading
Once the page loads, the compressor keeps working even without an internet connection. Start online, finish on the plane.

Frequently asked questions

Is this really an online tool if files are not uploaded?
Yes — the tool itself is online (you open it in a browser), but it processes files locally using JavaScript and the Canvas API. That gives you the convenience of an online tool with the privacy and speed of a desktop app.
Do I need to install anything?
No. Open this page in Chrome, Safari, Firefox, Edge or any modern browser. There is no plugin, no extension, and no desktop download required.
Is the online compressor free?
Yes — completely free with no daily limit, no paid tier, and no watermark. There is no server cost to recoup because compression runs on your device.
Does it work on my phone?
Yes. The tool works in any mobile browser — Safari on iPhone, Chrome on Android, or anything else. No app store download needed.
How much smaller will my pictures get?
A typical phone photo at quality 75 shrinks by 60–90%. The exact figure depends on image content and resolution. The output size is shown live for every file.
Can I compress multiple pictures at once online?
Yes. Drop up to 30 files at a time. Each is compressed at your chosen quality setting, and you can download all results with one click.
What formats are supported?
Input: JPEG, PNG, WebP and AVIF. Output: JPEG (default) or WebP. Switch the output format in the toolbar for the smallest possible file.
Will the online tool add a watermark?
No. The output is your picture and nothing else — no watermark, no logo, no hidden metadata.

Compress pictures online — no upload, no install

Traditional image compression means installing Photoshop, GIMP, or a command-line tool like ImageMagick. Online alternatives upload your files to a remote server, which is slow on large images and raises privacy questions.

This tool combines the best of both worlds. It runs in your browser using the HTML5 Canvas API: the image is decoded, drawn to an off-screen canvas, and re-encoded at the quality you choose — all on your own device. You get the convenience of an online tool without sending your pictures anywhere.

Because there is no upload, there is no file-size cap, no daily limit, and no queue. The compressor works as fast as your device can re-encode pixels.

Need a specific file-size target? Try Compress to 100 KB . Looking for format-specific settings? Compress JPEG shows a live quality table tuned for JPG files.

Your pictures never leave your device

All compression runs locally using the Canvas API. No file is uploaded, stored, or analysed by a server. The tool keeps working even if you go offline after loading the page.