Free Online Image Tools — Right in Your Browser

Picking the right image format

Format choice decides most of your file size before you compress a single byte. Match the format to the kind of image:

• JPG — photographs and any image with smooth gradients. No transparency, but the smallest files for real-world photos. Your default for camera shots.
• PNG — screenshots, logos, line art, and anything needing a transparent background or razor-sharp edges. Lossless, so text and flat color stay crisp, but photos balloon in size.
• WebP — a strong all-rounder: roughly 25-35% smaller than JPG at similar quality, supports transparency, and works in every current browser. A safe modern default for the web.
• AVIF — the smallest of the four at a given quality, especially for photos, with transparency support. Encoding is slower and a few older apps still choke on it, so keep a JPG or WebP fallback when you need universal compatibility.

Rule of thumb: photos to JPG/WebP/AVIF, anything with transparency or sharp edges to PNG or WebP.

Compressing without visible quality loss

Most JPEGs are saved at a higher quality than the eye can detect. Dropping to around 80% quality typically cuts the file in half with no difference you can spot at normal viewing size. Below roughly 60% you start to see blocky artifacts in skies and skin tones.

• Resize first, then compress. A 4000px-wide photo shown in a 1200px column wastes most of its data. Scale to the actual display size and the file shrinks far more than quality settings alone can manage.
• Web images: aim for under ~200 KB for in-article photos and under ~500 KB for full-width hero images.
• Email attachments: keep individual images under ~1 MB so they don't bounce or clog inboxes.
• Compress once from the original. Re-saving a JPEG repeatedly stacks artifacts, since each pass throws away more detail.

Why processing in your browser matters

Every tool here runs entirely on your device. Your files are read into the browser, processed, and saved back — they're never uploaded to a server. That changes a few things in practical terms:

• Privacy: sensitive photos, ID scans, contracts, and medical images never leave your machine, so there's nothing on a remote server to leak, retain, or train on.
• Speed: there's no upload-then-download round trip. A large file is processed as fast as your own hardware allows, not your connection.
• No limits: because nothing is transferred, there are no upload size caps, and the tools keep working offline once the page has loaded.

Handling common tasks

• HEIC to JPG: iPhones save photos as HEIC, which many sites and Windows apps won't open. Converting to JPG makes them work everywhere with no visible quality loss.
• Stripping EXIF and GPS: photos carry hidden metadata — camera model, timestamp, and often the exact GPS coordinates where the shot was taken. Strip it before posting publicly so you're not sharing your home or location by accident.