How to use Compress Image online for free — the complete 2026 guide
Compress Image shrinks JPG, PNG, or WebP files in your browser — tune quality and optional max dimensions, then download one file or a zip of many.
Ready to try it?
Open the Compress Image tool and follow along.
What Compress Image does
Compress JPG, PNG, or WebP in your browser — tune quality and optional max size, then download one file or a zip.
Compress Image shrinks JPG, PNG, or WebP files in your browser — tune quality and optional max dimensions, then download one file or a zip of many.
How to use Compress Image — step by step
Follow these steps to use the Compress Image tool on WordToPDFHub. The whole flow takes less than a minute for typical documents.
- 1Drop one or more images into Compress Image.
- 2Choose a quality level and optional max width or height.
- 3Download the compressed result (batch jobs arrive as a zip).
Pro tips
A few habits that get the best results out of Compress Image:
- Start around 70–80% quality for photos; drop lower only if size still exceeds a limit.
- PNG with transparency may convert to a format that preserves alpha depending on settings.
- Pair with Image Resize when you also need exact pixel dimensions.
Common use cases
Users reach for Compress Image in a range of scenarios. The most common:
- Getting under an email or CMS upload limit.
- Shrinking product photos for a storefront.
- Batch-preparing images for a slide deck.
Why use WordToPDFHub for compress image
Most online PDF tools force you to upload files to a remote server, wait in a queue, and accept a watermarked result. WordToPDFHub takes the opposite approach: everything happens in your browser, results are instant, and the output is clean.
- 100% browser-based — no uploads, no accounts, no watermarks.
- Works on Windows, macOS, Linux, iOS, Android and Chromebook.
- Handles multi-page documents at desktop speed.
- Free forever for individual users.
Privacy and security
Compress Image runs entirely in your browser. Your PDF is loaded into memory, processed with WebAssembly, and the result is offered as a direct download. Nothing is uploaded, cached on a server, or logged.
Because the work is local, you can safely use it on contracts, invoices, medical records and other confidential documents without violating internal data-handling policies.
Frequently asked questions
- Is my file uploaded to a server?
- No. Every WordToPDFHub tool runs inside your browser using WebAssembly, so your document never leaves your device.
- Is the tool really free?
- Yes — every core tool on WordToPDFHub is free to use with no watermarks, no sign-up, and no file-size paywall for typical documents.
- Does Compress Image work on mobile?
- Yes. Compress Image runs in any modern mobile browser — Safari on iOS, Chrome on Android, and the built-in browsers on iPad and Android tablets.
- Are there file-size limits?
- The tool is limited only by your device's memory. Typical documents up to a few hundred megabytes process comfortably on a modern laptop or phone.
Try Compress Image now
Free, browser-based, no sign-up.
Open the tool