Image Tools
LiveImage Compressor shrinks JPG, PNG and WebP files by 40–80% with negligible visible loss.
Drop an image here, or click to browse
JPG, PNG, WebP — up to ~20 MB
Supported formats
JPG, PNG, WebP
Examples
Phone photos, screenshots, product images
You will get
A smaller image at your chosen quality
Image Compressor shrinks JPG, PNG and WebP files by 40–80% with negligible visible loss. It runs entirely in your browser using a Web Worker, so even 20 MB DSLR photos compress in seconds without uploading anywhere. Use the quality slider to balance size vs. fidelity.
Images account for roughly 50% of the average web page's bytes. A 4 MB DSLR JPEG embedded in a blog post will load in 8+ seconds on a 4G connection, push your Largest Contentful Paint past Google's 'poor' threshold, and quietly tank your Core Web Vitals score. Compressing the same image to 200–400 KB usually preserves all the visible detail at typical viewing sizes — the perceived quality is identical but the page loads four times faster.
JPEG is the workhorse for photos: lossy, universal, no transparency. PNG is lossless and supports transparency — best for logos, icons and screenshots. WebP is Google's modern replacement: 25–35% smaller than JPEG at equivalent quality, supports both lossy and lossless modes and transparency, and is supported by every major browser since 2020. AVIF is the next generation — typically 50% smaller than JPEG — but encoding is slower and older Safari versions don't support it. For most websites in 2026, WebP is the sweet spot.
The quality slider in any JPEG encoder is not a percentage of visual quality — it's a tuning parameter for the discrete-cosine-transform quantiser. The relationship is non-linear: dropping from 100 to 85 typically removes ~50% of the file size with no visible difference; dropping from 85 to 70 removes another 30% with very subtle artefacts; below 60 you start seeing blocking around high-contrast edges. We default to a quality target that aims for ~80, which is the industry-standard sweet spot.
Image Compressor solves a single, well-scoped task on images without the usual web-tool friction: no signup wall, no email gate, no upsell prompts, no watermark, no daily quota and no file-size limit beyond what your device's RAM allows. The interface is deliberately minimal — pick your input, set any options, click the action button, download the result. Everything from upload to download usually takes less than ten seconds. Because the tool focuses on a single job rather than trying to be a do-everything suite, the defaults are tuned for that job and rarely need adjustment.
Most operations happen locally using modern browser APIs (Canvas, File, Web Workers, WebAssembly) so your data never has to leave your device. That matters for personal documents (IDs, statements, certificates), confidential business files (contracts, invoices), and anything else you'd rather not hand to a third-party server. Where a step genuinely needs server help (only true for AI-powered tools), we route through a trusted AI gateway and discard your input immediately after the response is returned. There is no analytics pixel attached to the file itself, no fingerprinting of the document, and no copy persisted in cloud storage.
Real work is a chain of small steps: download a file → fix one thing → re-upload. Image Compressor owns one link in that chain and tries to do it well — sharp output, predictable behaviour, no surprises. Pair it with the other free tools on this site (compressors, converters, resizers, PDF utilities, QR generators, AI writing helpers) to handle the entire chain without leaving the browser. The fewer tabs your workflow needs, the faster you finish, and the lower the risk of a sensitive file leaking through a third-party converter.
There is no premium tier. The tool is free because hosting static JavaScript costs us almost nothing, and we'd rather earn trust than rent attention with paywalls. Use it once a year or a hundred times today — the experience is the same. If a tool ever does require a server call (AI features specifically), that call is metered at our cost, not yours, and you will never be asked for a credit card to access the basic functionality. We do not insert affiliate links into outputs, we do not stamp watermarks on downloads to push upgrades, and we do not impose 'pro' formats behind a paywall.
Image Compressor runs on every modern desktop browser (Chrome, Edge, Firefox, Safari, Brave, Arc) released after 2021, and on every modern mobile browser including iOS Safari and Android Chrome. There is nothing to install, no extension to approve and no permission to grant beyond standard file access when you pick an upload. On slower phones the heaviest tasks (image compression of multi-megabyte photos, PDF merges of long documents) may take a few extra seconds while the device's JavaScript engine catches up, but the work still completes locally. If you hit a memory error on a very low-end device, refresh the tab and try a smaller batch — every tool here is stateless, so a refresh is harmless.
Because nothing is uploaded, there is no question of who can see your file in transit, where the server lives, or how long the provider retains a copy. The browser is the sandbox. The code that runs is the same code that ships to every visitor — auditable in the page source. We follow standard web security practice: HTTPS-only delivery, Subresource Integrity on third-party scripts, and a strict Content Security Policy that prevents arbitrary third-party code from running on the page. For organisations that need to demonstrate due diligence on a 'no data leaves the device' claim, the network tab in any browser's developer tools confirms that processing a file generates zero outbound requests with file contents attached.
Start from the highest-quality source you reasonably can — Image Compressor preserves quality but cannot invent detail that isn't in the input. For images, prefer the original camera file over a screenshot of a screenshot. For PDFs, prefer the digitally generated original over a phone photograph of a printout. If a step in your workflow is going to compress or downscale, do it last, so each earlier step still has full information to work with. And when a portal you are uploading to enforces an awkward limit (a strict 50 KB cap, an obscure aspect ratio, a single-page-only restriction), check the tool list — there is almost certainly a dedicated tool here that handles that exact constraint without you needing to learn the maths.
Quality slider from 30% to 95% lets you trade off size and clarity.
Typical 60–80% reduction on photos — perfect for web, email and WhatsApp.
JPG stays JPG, PNG stays PNG, WebP stays WebP.
All work happens in your browser via a Web Worker — nothing is uploaded.
Click the file picker and select your image (JPG/PNG/WebP).
Drag the quality slider — 75–85% is a good default for photos.
Click Compress and wait a moment.
Compare original vs. compressed sizes, then click Download.
For photos, 75–85% quality is visually indistinguishable from 100%.
Screenshots compress better as PNG → WebP (use our PNG to WebP tool).
If you need an exact target size (e.g. 100 KB), use one of the 'compress to X KB' presets in the sidebar.
More Image Tools you might find useful.
Popular tools people reach for after Image Compressor.
Long-form walkthroughs that pair with this tool — formats, workflows, troubleshooting and SEO best-practice.
Common questions about tools related to Image Compressor.