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Open →Compress Image Online Free — No Signup
Drop an image below and get a smaller file in seconds. Your files never leave your browser.
Lower quality = smaller file. 80% is the sweet spot for photos.
No image chosen yet. Pick one above to see original → compressed size instantly.
Your files never leave your browser. Compression runs locally with the Canvas API — nothing is uploaded, ever.
What is an image compressor?
An image compressor reduces the file size of a JPG, PNG or WebP image so it loads faster, uploads quicker and takes less storage — without changing its dimensions. This free compressor works entirely in your browser, shows you the original size → compressed size and how much you saved, and needs no signup.
How to compress an image
- Step 1: Drag & drop your image, or tap the box to choose a file from your device.
- Step 2: Pick a quality — 80% is ideal for most photos. Watch the compressed size update live.
- Step 3: Choose JPEG for photos, WebP for the smallest file, or PNG for graphics with transparency.
- Step 4: Tap Download and save the smaller image. That is it — no signup, no watermark.
Which format should you choose?
JPEG is the safe default for photographs and works everywhere. WebP usually gives the smallest file (often 25–35% smaller than JPEG at the same quality) and is supported by all modern browsers — perfect for websites. PNG is lossless and keeps transparency, so use it for logos, screenshots and graphics, not large photos.
Why compress images?
Large images are the #1 cause of slow web pages, failed uploads and full phone storage. A photo straight from a phone can be 3–5 MB; compressed, the same photo is often under 300 KB and looks identical on screen. Faster pages rank better, email attachments stop bouncing, and forms with size limits accept your file first try.
Frequently asked questions
Is this image compressor free?
Yes, completely free with no signup, no watermark and no file-size account wall. Compress as many images as you need.
Are my images uploaded to a server?
No. Compression happens in your browser using the Canvas API. Your files never leave your device, so private photos stay private.
Which format should I choose — JPEG, PNG or WebP?
Use JPEG for photos on most websites, WebP for the smallest size on modern browsers, and PNG when you need transparency or crisp text and logos.
What quality setting should I use?
80% is the best starting point for photos — usually 60–80% smaller with no visible difference. Try 60% for thumbnails and 90% when detail matters.
Why did my PNG get bigger?
PNG is lossless, so re-saving a photo as PNG can increase size. For photos, choose JPEG or WebP instead. PNG is best for graphics with transparency.
Does compressing reduce image dimensions?
For normal photos, no — the tool keeps the original width and height and reduces file size through quality encoding. Extremely large photos (over about 16 megapixels) are scaled down slightly, because phone browsers cannot process a canvas that big; the tool tells you when it does this.
Short answer: Compress JPG, PNG and WebP images right in your browser: pick a photo, set the quality, and see the original vs compressed size instantly — no upload, no signup.
Frequently asked questions
Are my photos uploaded to a server?
No. Compression runs in your own browser — your photos never leave your device.
How much smaller do files get?
Typically 50–80% smaller at quality 70–80, with no visible difference on screens.
Which image formats are supported?
JPG, PNG and WebP. You can keep the original format or convert between them.
The download doesn't work on my phone — what now?
The compressed image is also shown right on the page. Press and hold it, then choose “Save image” — that works in every mobile browser.
Can I compress images online for free with no signup?
Yes. This free online image compressor needs no signup — drop in a JPG, PNG or WebP and download the smaller file in seconds. All compression happens in your browser, so your photos never leave your device.
Can I compress a PNG online without signing up?
Yes — PNG compression works here with no signup and no account. Choose PNG output to keep transparency intact, and use the quality slider to find the smallest file size that still looks good.