How it works
Upload
Drop your photo into the box above — JPG, PNG or WebP, straight from your phone or camera.
Set target size
The target is already set to 300 KB. Pick JPEG or WebP, then hit Compress image.
Download
Check the preview and your savings, then download a file guaranteed under 300 KB.
Why 300KB works for email and documents
Email was not built for multi-megabyte photos. Many mail servers and corporate inboxes still throttle attachments around a few megabytes total, so a single 300KB image — or a handful of them — sails through where originals bounce. Presentations benefit the same way: a 40-slide deck stays emailable when every image is 300KB instead of 4MB.
At 300KB, quality is a non-issue for documents. Projected on a screen or printed at typical document sizes, a 300KB photo is indistinguishable from the original — while the file is small enough to attach, share and sync without thinking twice.
Tips for best results at 300KB
- Batch before attaching. Compress every photo to 300KB before dragging them into an email — ten images become 3MB total instead of 40MB.
- Keep 1600px width for slides. Projectors rarely exceed 1920px wide; 1600px images at 300KB look perfect and keep decks light.
- JPEG is the email-safe choice. Every email client on earth displays JPEG. WebP is smaller but a few older clients still fumble it.
- Compress, then insert. Shrink images before adding them to PowerPoint or Word — once embedded at full size, the bloat is baked in.
- Check the total, not just each file. Five 300KB images = 1.5MB email. Comfortable for virtually every mail server.
Where a 300KB image is used
- Email attachments — photos that must pass corporate size limits.
- Presentations — slide decks that stay small enough to email and share.
- Word documents — reports with embedded photos that do not balloon to 100MB.
- Chat and messaging — quick, high-quality shares without the wait.
- Cloud sync folders — lighter files that sync faster across devices.